Station Overview Station Location
Station Number NY-ER-50 Latitude 42.7675
Station Name East Aurora 0.1 ENE Longitude -78.6158
County Erie Elevation (ft) 919



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 11 3.67 5.98 31 5.98 31 0.00 0 0 16 2 0.0 0 0
Nov 11 4.11 3.84 30 3.84 30 0.00 0 0 9 6 1.0 2 1
Dec 11 3.70 4.14 31 4.14 31 0.00 0 0 15 8 3.3 6 6
Jan 12 3.20 3.65 31 3.65 31 0.00 0 0 18 7 24.9 17 18
Feb 12 2.57 1.76 29 1.76 29 0.00 0 0 11 11 8.4 9 13
March 12 3.12 2.12 31 2.12 31 0.00 0 0 12 5 0.7 3 2
April 12 3.39 2.05 30 2.05 30 0.00 0 0 12 2 1.2 1 1
May 12 3.67 1.86 31 1.86 31 0.00 0 0 10 1 0.0 0 0
June 12 4.18 3.52 30 3.52 30 0.00 0 0 14 1 0.0 0 0
July 12 3.72 2.22 31 2.22 31 0.00 0 0 12 1 0.0 0 0
Aug 12 3.59 3.24 31 3.24 31 0.00 0 0 8 3 0.0 0 0
Sept 12 4.48 4.53 30 4.53 30 0.00 0 0 15 3 0.0 0 0
Water Year Totals: 43.40" 38.91" 366 days 38.91" 366 0.00" 0 days 0 152 days 50 days 39.5" 38 days 41 days



Days in Water Year Cell Color Key
        Daily Observation with Prcp         Missing Day
        Multiday Observation         Daily/Multiday Observation Conflict

Day of Year Daily Prcp Multiday Prcp
10/1/2011 0.11
10/2/2011 0.22
10/3/2011 0.43
10/4/2011 0.03
10/5/2011 0.00
10/6/2011 0.00
10/7/2011 0.00
10/8/2011 0.00
10/9/2011 0.00
10/10/2011 0.00
10/11/2011 0.00
10/12/2011 0.00
10/13/2011 0.31
10/14/2011 0.04
10/15/2011 1.40
10/16/2011 0.81
10/17/2011 0.22
10/18/2011 0.00
10/19/2011 T
10/20/2011 0.58
10/21/2011 0.55
10/22/2011 0.33
10/23/2011 0.00
10/24/2011 0.00
10/25/2011 0.09
10/26/2011 0.35
10/27/2011 0.36
10/28/2011 0.15
10/29/2011 0.00
10/30/2011 T
10/31/2011 0.00
11/1/2011 T
11/2/2011 0.00
11/3/2011 0.00
11/4/2011 0.00
11/5/2011 0.00
11/6/2011 0.00
11/7/2011 0.00
11/8/2011 T
11/9/2011 0.00
11/10/2011 T
11/11/2011 0.66
11/12/2011 T
11/13/2011 0.00
11/14/2011 T
11/15/2011 1.25
11/16/2011 0.00
11/17/2011 T
11/18/2011 0.09
11/19/2011 0.00
11/20/2011 0.02
11/21/2011 0.00
11/22/2011 0.00
11/23/2011 0.88
11/24/2011 0.02
11/25/2011 0.00
11/26/2011 0.00
11/27/2011 0.00
11/28/2011 0.58
11/29/2011 0.03
11/30/2011 0.31
12/1/2011 0.11
12/2/2011 0.00
12/3/2011 0.25
12/4/2011 0.00
12/5/2011 0.04
12/6/2011 1.04
12/7/2011 0.02
12/8/2011 T
12/9/2011 T
12/10/2011 0.27
12/11/2011 0.00
12/12/2011 0.00
12/13/2011 0.00
12/14/2011 0.00
12/15/2011 0.37
12/16/2011 0.72
12/17/2011 0.02
12/18/2011 T
12/19/2011 T
12/20/2011 T
12/21/2011 T
12/22/2011 0.41
12/23/2011 0.27
12/24/2011 T
12/25/2011 0.00
12/26/2011 0.07
12/27/2011 0.00
12/28/2011 0.42
12/29/2011 T
12/30/2011 0.04
12/31/2011 0.09
Day of YearDaily PrcpMultiday Prcp
1/1/2012 0.01
1/2/2012 0.17
1/3/2012 0.03
1/4/2012 T
1/5/2012 0.00
1/6/2012 T
1/7/2012 0.00
1/8/2012 0.00
1/9/2012 T
1/10/2012 T
1/11/2012 0.00
1/12/2012 0.62
1/13/2012 0.32
1/14/2012 0.26
1/15/2012 T
1/16/2012 0.00
1/17/2012 0.12
1/18/2012 0.33
1/19/2012 T
1/20/2012 0.09
1/21/2012 0.11
1/22/2012 T
1/23/2012 0.00
1/24/2012 0.13
1/25/2012 0.02
1/26/2012 0.05
1/27/2012 0.60
1/28/2012 0.10
1/29/2012 0.40
1/30/2012 0.28
1/31/2012 0.01
2/1/2012 0.27
2/2/2012 T
2/3/2012 T
2/4/2012 0.00
2/5/2012 T
2/6/2012 T
2/7/2012 0.00
2/8/2012 T
2/9/2012 0.00
2/10/2012 0.00
2/11/2012 0.06
2/12/2012 0.08
2/13/2012 T
2/14/2012 0.00
2/15/2012 0.06
2/16/2012 T
2/17/2012 0.10
2/18/2012 T
2/19/2012 0.05
2/20/2012 T
2/21/2012 0.00
2/22/2012 0.23
2/23/2012 0.50
2/24/2012 0.04
2/25/2012 0.35
2/26/2012 0.02
2/27/2012 T
2/28/2012 0.00
2/29/2012 T
3/1/2012 0.08
3/2/2012 0.01
3/3/2012 0.19
3/4/2012 0.04
3/5/2012 T
3/6/2012 T
3/7/2012 0.00
3/8/2012 0.00
3/9/2012 0.64
3/10/2012 0.03
3/11/2012 0.00
3/12/2012 0.00
3/13/2012 0.29
3/14/2012 T
3/15/2012 0.00
3/16/2012 0.07
3/17/2012 0.01
3/18/2012 0.00
3/19/2012 T
3/20/2012 0.00
3/21/2012 0.00
3/22/2012 0.00
3/23/2012 0.00
3/24/2012 0.00
3/25/2012 0.51
3/26/2012 0.00
3/27/2012 0.00
3/28/2012 T
3/29/2012 0.11
3/30/2012 0.00
3/31/2012 0.14
Day of YearDaily PrcpMultiday Prcp
4/1/2012 0.03
4/2/2012 0.18
4/3/2012 0.00
4/4/2012 0.00
4/5/2012 0.00
4/6/2012 0.00
4/7/2012 0.00
4/8/2012 0.00
4/9/2012 T
4/10/2012 0.00
4/11/2012 0.02
4/12/2012 0.11
4/13/2012 0.00
4/14/2012 0.00
4/15/2012 0.01
4/16/2012 0.07
4/17/2012 T
4/18/2012 0.00
4/19/2012 0.00
4/20/2012 0.00
4/21/2012 0.30
4/22/2012 0.32
4/23/2012 0.16
4/24/2012 0.76
4/25/2012 0.04
4/26/2012 0.00
4/27/2012 0.05
4/28/2012 0.00
4/29/2012 0.00
4/30/2012 0.00
5/1/2012 0.57
5/2/2012 0.02
5/3/2012 0.02
5/4/2012 0.10
5/5/2012 0.00
5/6/2012 0.00
5/7/2012 T
5/8/2012 0.14
5/9/2012 0.31
5/10/2012 0.00
5/11/2012 0.00
5/12/2012 0.00
5/13/2012 0.00
5/14/2012 0.00
5/15/2012 0.00
5/16/2012 0.00
5/17/2012 0.04
5/18/2012 0.00
5/19/2012 0.00
5/20/2012 0.00
5/21/2012 0.00
5/22/2012 0.47
5/23/2012 0.00
5/24/2012 0.00
5/25/2012 0.00
5/26/2012 0.10
5/27/2012 0.00
5/28/2012 0.00
5/29/2012 0.00
5/30/2012 0.09
5/31/2012 0.00
6/1/2012 0.03
6/2/2012 0.67
6/3/2012 0.60
6/4/2012 0.65
6/5/2012 0.04
6/6/2012 0.00
6/7/2012 0.01
6/8/2012 0.00
6/9/2012 0.14
6/10/2012 0.15
6/11/2012 0.00
6/12/2012 0.45
6/13/2012 0.41
6/14/2012 0.00
6/15/2012 0.00
6/16/2012 0.00
6/17/2012 0.00
6/18/2012 0.09
6/19/2012 0.10
6/20/2012 0.00
6/21/2012 0.00
6/22/2012 0.00
6/23/2012 0.03
6/24/2012 0.00
6/25/2012 0.15
6/26/2012 0.00
6/27/2012 0.00
6/28/2012 T
6/29/2012 0.00
6/30/2012 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2012 0.36
7/2/2012 0.00
7/3/2012 0.00
7/4/2012 0.01
7/5/2012 0.00
7/6/2012 0.00
7/7/2012 0.00
7/8/2012 0.10
7/9/2012 0.00
7/10/2012 0.00
7/11/2012 0.00
7/12/2012 0.00
7/13/2012 0.00
7/14/2012 0.00
7/15/2012 0.00
7/16/2012 0.14
7/17/2012 T
7/18/2012 0.00
7/19/2012 0.00
7/20/2012 0.11
7/21/2012 0.16
7/22/2012 0.00
7/23/2012 0.30
7/24/2012 0.02
7/25/2012 0.00
7/26/2012 0.11
7/27/2012 0.72
7/28/2012 0.18
7/29/2012 0.01
7/30/2012 0.00
7/31/2012 0.00
8/1/2012 0.67
8/2/2012 0.00
8/3/2012 0.00
8/4/2012 0.00
8/5/2012 0.00
8/6/2012 1.99
8/7/2012 0.00
8/8/2012 0.00
8/9/2012 0.00
8/10/2012 T
8/11/2012 T
8/12/2012 0.10
8/13/2012 0.03
8/14/2012 0.01
8/15/2012 0.24
8/16/2012 0.00
8/17/2012 0.15
8/18/2012 T
8/19/2012 0.00
8/20/2012 0.00
8/21/2012 0.00
8/22/2012 0.00
8/23/2012 0.00
8/24/2012 0.00
8/25/2012 0.00
8/26/2012 0.00
8/27/2012 0.00
8/28/2012 0.05
8/29/2012 0.00
8/30/2012 0.00
8/31/2012 0.00
9/1/2012 0.00
9/2/2012 0.00
9/3/2012 0.00
9/4/2012 0.00
9/5/2012 1.59
9/6/2012 0.00
9/7/2012 T
9/8/2012 0.03
9/9/2012 0.40
9/10/2012 T
9/11/2012 0.00
9/12/2012 0.00
9/13/2012 0.00
9/14/2012 0.00
9/15/2012 0.20
9/16/2012 0.00
9/17/2012 0.00
9/18/2012 0.05
9/19/2012 0.43
9/20/2012 0.00
9/21/2012 0.01
9/22/2012 0.99
9/23/2012 0.24
9/24/2012 0.09
9/25/2012 0.08
9/26/2012 0.01
9/27/2012 0.26
9/28/2012 T
9/29/2012 0.03
9/30/2012 0.12



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2011 9:00 AM 0.11 M M M M
10/2/2011 7:00 AM 0.22 M M M M Drizzle during the morning with cloudy skies for the rest of the day. Rain returned overnight.
10/3/2011 9:30 AM 0.43 M M M M A swath of rain moved westward across the area with a low to the south during the day. Otherwise lots of drizzle, and some spotty shower activity overnight.
10/4/2011 7:00 AM 0.03 M M M M End of upper level drizzle event.
10/5/2011 7:00 AM 0.00 0.0 M M M
10/6/2011 7:00 AM 0.00 0.0 M M M
10/7/2011 7:00 AM 0.00 0.0 M M M
10/8/2011 7:00 AM 0.00 0.0 M M M
10/9/2011 7:00 AM 0.00 0.0 M M M
10/10/2011 7:00 AM 0.00 0.0 M M M
10/11/2011 7:00 AM 0.00 0.0 M M M
10/12/2011 7:00 AM 0.00 0.0 M M M
10/13/2011 7:00 AM 0.31 M M M M Rain slowly moved into the region from the south as a low moved through. Most of the rain occurred during the evening hours.
10/14/2011 7:00 AM 0.04 M M M M showers overnight ahead of cold front.
10/15/2011 8:40 AM 1.40 M M M M .88 by midnight - some of that was synoptic, but most was lake effect with thunder at 945PM. The rest was lake effect, adding up to a total of 1.4. Still in the heart of the band so plenty more rain for tomorrow's report.
10/16/2011 7:00 AM 0.81 M M M M Quite a bit of lake effect rain continued during the morning, then drifted south in the afternoon. A shortwave then moved through and a swath of precip filled in with lake enhancement. The lake band lingered south of EA in the evening. Storm total: 2.21
10/17/2011 7:00 AM 0.22 M M M M Lake effect rain at times.
10/18/2011 7:00 AM 0.00 0.0 M M M
10/19/2011 7:00 AM T M M M M Showers grazed EA with rumbles of thunder as they moved north across the area.
10/20/2011 7:00 AM 0.58 M M M M A thin line of showers moved north across the region during the morning. It was then mostly cloudy for the remainder of the day. A TROWAL moved across the region overnight.
10/21/2011 7:30 AM 0.55 M M M M Lake effect overnight.
10/22/2011 7:00 AM 0.33 M M M M Lake effect rain most of the afternoon.
10/23/2011 7:00 AM 0.00 0.0 M M M
10/24/2011 7:00 AM 0.00 0.0 M M M
10/25/2011 7:00 AM 0.09 M M M M showers ahead of cold front during the morning. Cold front moved through late in the afternoon with a line of showers developing along Lake Ontario.
10/26/2011 7:00 AM 0.35 M M M M Rain late in aftn with a frontal boundary moving into the region. More rain over night as the boundary sagged south.
10/27/2011 7:00 AM 0.36 M M M M Stationary boundary just to the south with light drizzle and rain for most of the day and night.
10/28/2011 7:00 AM 0.15 T M 0.0 M upslope flow with a cooling airmass produced some light snow in the afternoon. accumulating snow just to the south in the hills. Saw several cars driving with snow on top on the way home.
10/29/2011 7:00 AM 0.00 0.0 M M M
10/30/2011 7:00 AM T M M M M Noted snow just south of EA, but not sure if it occurred in EA itself.
10/31/2011 7:00 AM 0.00 0.0 M M M
11/1/2011 7:00 AM T M M M M A few drops around 9-10PM.
11/2/2011 7:00 AM 0.00 0.0 M M M
11/3/2011 7:00 AM 0.00 0.0 M M M
11/4/2011 7:00 AM 0.00 0.0 M M M
11/5/2011 7:00 AM 0.00 0.0 M M M
11/6/2011 7:00 AM 0.00 0.0 M M M
11/7/2011 7:00 AM 0.00 0.0 M M M
11/8/2011 7:00 AM T M M M M A few sprinkles in the afternoon, and some light shower activity overnight with a warm front.
11/9/2011 7:00 AM 0.00 0.0 M M M
11/10/2011 7:00 AM T M M M M Rain showers accompanied a cold front in the evening, but a fairly impressive looking band fell apart as it moved though EA. Windy behind the cold front overnight.
11/11/2011 7:00 AM 0.66 0.3 M T M Lake effect rain transitioned to grauple and then snow in the evening. Most of the snow had melted by dawn
11/12/2011 7:00 AM T T M 0.0 M a few rain and snow showers, some graupel with meandering lake effect bands.
11/13/2011 7:00 AM 0.00 0.0 M M M
11/14/2011 7:00 AM T M M M M sprinkles around 9PM with warm advective pattern.
11/15/2011 7:00 AM 1.25 M M M M 2 TORs in the Southern Tier. These developed ahead of a slow moving cold front with a convective line developing in an unseasonably warm airmass with a strong low level 60kt jet.
11/16/2011 7:00 AM 0.00 0.0 M M M
11/17/2011 7:00 AM T M M M M A few drops ahead of cold front.
11/18/2011 7:00 AM 0.09 0.7 M 0.5 M Lake effect snow in afternoon. Thunder snow at 3:30.
11/19/2011 7:00 AM 0.00 0.0 M 0.0 M
11/20/2011 7:00 AM 0.02 M M M M Showers overnight with continued warm air advection.
11/21/2011 7:00 AM 0.00 0.0 M M M
11/22/2011 7:00 AM 0.00 0.0 M M M
11/23/2011 7:00 AM 0.88 M M M M Big synoptic rain event as low moved through the OH valley an d into PA. Moderate to heavy rain late evening, followed by light rain for the rest of the night. At obs time a band of heavy rain from the deformation band was overhead.
11/24/2011 7:00 AM 0.02 M M M M Tail end of system.
11/25/2011 7:00 AM 0.00 0.0 M M M
11/26/2011 7:00 AM 0.00 0.0 M M M
11/27/2011 7:00 AM 0.00 0.0 M M M
11/28/2011 7:00 AM 0.58 M M M M Periods of rain developed in the afternoon with slow moving frontal system.
11/29/2011 7:00 AM 0.03 M M M M a few showers with approaching warm front.
11/30/2011 7:00 AM 0.31 M M M M steady rain during the morning with warm conveyor belt. cold front in evening swept in from SW to NE. Not much precipitation with the cold front.
12/1/2011 7:00 AM 0.11 T M 0.0 M rain to snow with deformation zone.
12/2/2011 7:00 AM 0.00 0.0 M M M
12/3/2011 7:00 AM 0.25 0.7 M 0.5 M Rain quickly changed over to snow in the morning and turned back to rain around noon and fell apart as a cold front moved through.
12/4/2011 7:00 AM 0.00 0.0 M T M
12/5/2011 7:00 AM 0.04 M M 0.0 M What a rediculously nice day for Dec, with highs just above 60F. A slow moving frontal boundary approached the region overnight with sprinkles in the evening just before 6PM...with a very slow increase over time.
12/6/2011 7:00 AM 1.04 M M M M rain for much of the day and night with a slow moving frontal boundary.
12/7/2011 7:00 AM 0.02 M M M M drizzle throughout the day and night.
12/8/2011 7:00 AM T M M M M
12/9/2011 6:00 AM T M M M M lake effect snow eventually started late
12/10/2011 7:00 AM 0.27 1.9 M 1.5 M Light synoptic snow in the morning, about .3", the a long break late morning though dusk. Then lake effect rain and snow settled south into the region and changed over to snow in the evening for another 1.6".
12/11/2011 7:00 AM 0.00 0.0 M 1.0 M
12/12/2011 7:00 AM 0.00 0.0 M 1.0 M
12/13/2011 7:00 AM 0.00 0.0 M 0.5 M
12/14/2011 7:00 AM 0.00 0.0 M T M
12/15/2011 7:00 AM 0.37 M M M M rain developed in the afternoon and continued at times overnight under a warm advective pattern.
12/16/2011 7:00 AM 0.72 M M M M warm advection rain continued until about 330PM when a thin line marking the cold front came through. Some shower activity overnight behind the front with windy conditions. Storm total 1.09
12/17/2011 7:00 AM 0.02 0.2 M 0.2 M snow showers with a bit of lake effect and synoptic
12/18/2011 7:00 AM T T M T M snow flurries
12/19/2011 7:00 AM T T M T M snow flurries
12/20/2011 7:00 AM T M M 0.0 M
12/21/2011 7:00 AM T M M M M Rain moving into the region with warm advection.
12/22/2011 7:00 AM 0.41 M M M M rain ended during the morning with a quick passing heavy shower in the evening as the cold front moved through. some scattered shower activity overnight.
12/23/2011 7:00 AM 0.27 T M 0.0 M Drizzle at times during the day. A system moved from the lower MS valley NE to the Delmarva Peninsula with a weak deformation area developing overhead. Not enough lift to change rain to snow for accumulations.
12/24/2011 7:00 AM T T M T M
12/25/2011 7:00 AM 0.00 0.0 M T M
12/26/2011 7:00 AM 0.07 T M 0.0 M cold front in eve. A bit of snow mixed in.
12/27/2011 7:00 AM 0.00 0.0 M M M
12/28/2011 7:00 AM 0.42 0.2 M T M est.
12/29/2011 7:00 AM T 0.2 M T M est
12/30/2011 7:00 AM 0.04 0.1 M 0.0 M est
12/31/2011 7:00 AM 0.09 0.0 M 0.0 M est
1/1/2012 7:00 AM 0.01 0.0 M 0.0 M est
1/2/2012 7:00 AM 0.17 0.1 M T M Lake effect developed in the afternoon with rain changing over to snow around 9PM, after a cold front that moved through at 4PM. However, there was never any well defined band, and snow amounts were minimal. Thundersnow at 1130PM.
1/3/2012 7:00 AM 0.03 1.1 M 1.0 M a few rounds of Lake effect snow.
1/4/2012 7:00 AM T 0.2 M 1.0 M snow showers throughout the day. Clearing at night. Temp steadily dropped to 0 overnight, then warmed toward morning.
1/5/2012 7:00 AM 0.00 0.0 M M M
1/6/2012 7:00 AM T T M 0.5 M
1/7/2012 7:00 AM 0.00 0.0 M 0.0 M
1/8/2012 7:00 AM 0.00 0.0 M 0.0 M
1/9/2012 7:00 AM T 0.1 M 0.0 M Some snow in the morning with a secondary front - just enough to cover the ground and measure.
1/10/2012 7:00 AM T T M 0.0 M a few snow flurries overnight
1/11/2012 7:00 AM 0.00 0.0 M M M
1/12/2012 7:00 AM 0.62 M M M M Swath of rain associated with associated with low that moved NE toward delmarva pen.
1/13/2012 8:00 AM 0.32 2.0 M 2.0 M Drizzle and some light rain at times during the day, with rain redeveloping overnight and quickly changing to snow overnight as a low moved into the OH valley while the first one moved off the coast. Getting windy as the low deepens and moves toward the region.
1/14/2012 8:00 AM 0.26 6.5 M 8.0 M 4 synoptic, then a small break, followed by a fairly healthy lake effect band that slowly moved south across the area. 3.5 for that, followed by another fluffy inch in light lake effect off a w flow. Storm total is 8.5
1/15/2012 9:00 AM T 1.5 M 9.0 M 1.5 inches of pure fluff! Not really directly related to the storm, but it never really stopped snowing either, so storm total 10". temp down to -3F.
1/16/2012 7:00 AM 0.00 0.0 M 6.0 M
1/17/2012 7:00 AM 0.12 0.0 M 1.5 M Rain moved in shortly after dark and continued throughout the night.
1/18/2012 7:00 AM 0.33 0.1 M 0.1 M Showers eventually ended during the afternoon. Then a strong squall line with some thunder and lightning moved through ahead of a cold front between 6-7PM. Gusts to 67MPH at the airport. Winds continued to howl into the evening. Temps plummeted from 50 to 30 in a few hours with snow showers in the evening, but nearly all the snow had melted by that time. A thin lake effect band formed near the area between 6-7AM for a little accumulation.
1/19/2012 7:00 AM T 0.4 M 0.4 M A few lake effect bands on a WSW flow.
1/20/2012 7:00 AM 0.09 2.6 M 3.0 M impressive arctic front in the evening.
1/21/2012 7:00 AM 0.11 1.9 M 4.0 M Synoptic system with low padding well to our south brought 1.9 inches overnight.
1/22/2012 7:00 AM T T M 3.0 M
1/23/2012 7:00 AM 0.00 0.0 M 2.0 M
1/24/2012 7:00 AM 0.13 M M T M Several rounds of prefrontal troughs producing showers, followed by the front itself around sunset. Winds did not pick up until around 10PM, with gusts estimated to be in the low 40mph range.
1/25/2012 7:00 AM 0.02 0.1 M T M A bit of lake effect rain and snow throughout the day and evening.
1/26/2012 7:00 AM 0.05 0.5 M 0.5 M Weak system well to the south produced some snow overnight.
1/27/2012 7:00 AM 0.60 T M 0.0 M rain in the afternoon with heavier rain overnight as a low moved nearly overhead by 7AM
1/28/2012 7:00 AM 0.10 0.5 M T M Snow with deformation zone
1/29/2012 7:00 AM 0.40 2.6 M 1.5 M Several rounds of snow. .5 in the morning, followed by another .4 in the afternoon. Then the cold front moved through with winds est 45-50mph and several whiteout periods with broken up lake effect, but only amounting to 1.7 for a total of 2.6 for the day. Lots of graupel with the lake effect.
1/30/2012 7:00 AM 0.28 4.6 M 6.0 M snow moved around sunset and rapidly accumulated to 3-4 inches by 8PM, with several periods of near white-out conditions with estimated 1-2"/hr rates. Total: 4.6, but it probably settled a bit overnight.
1/31/2012 7:00 AM 0.01 0.1 M 3.0 M Some snow in the evening, but not much. Near 40 in the AM with snow melting quickly.
2/1/2012 7:00 AM 0.27 0.0 M 0.0 M Rain overnight ahead of cold front. Quite a warm day with highs in the mid 50s.
2/2/2012 7:00 AM T M M 0.0 M
2/3/2012 7:00 AM T T M 0.0 M
2/4/2012 7:00 AM 0.00 0.0 M 0.0 M
2/5/2012 7:00 AM T T M T M
2/6/2012 7:00 AM T T M 0.0 M
2/7/2012 7:00 AM 0.00 0.0 M 0.0 M
2/8/2012 7:00 AM T T M 0.0 M
2/9/2012 7:00 AM 0.00 0.0 M 0.0 M
2/10/2012 7:00 AM 0.00 0.0 M 0.0 M
2/11/2012 8:00 AM 0.06 1.2 M 1.2 M light snow overnight
2/12/2012 8:20 AM 0.08 2.2 M 3.0 M Snow continued during the morning and ended around 4PM for a total of 3.1. Got another .1 toward morning just before obs time.
2/13/2012 7:00 AM T T M 3.0 M several rounds of weak NW oriented lake bands.
2/14/2012 7:00 AM 0.00 0.0 M 1.5 M
2/15/2012 7:00 AM 0.06 0.1 M 1.5 M Snow throughout the day...mostly snow that melted as it fell. snow mixed with rain at times. 1." snow overnight.
2/16/2012 7:00 AM T 0.0 M 1.0 M some sprinkles moving in ahead of low.
2/17/2012 7:00 AM 0.10 0.0 M 0.0 M Rain at times during the day with drizzle late afternoon and evening.
2/18/2012 9:00 AM T 0.2 M 0.2 M Some snow overnight
2/19/2012 7:00 AM 0.05 0.6 M 0.5 M Lots of flurries with one band of showers producing a quick .1" snow in the early afternoon, which melted quickly. Another shower moved through just before sunset and dropped a quick .5"
2/20/2012 7:00 AM T T M T M
2/21/2012 7:00 AM 0.00 0.0 M 0.0 M
2/22/2012 7:00 AM 0.23 0.1 M 0.1 M Rain and snow late in the afternoon, with some rain overnight. Sleet toward morning, leaving .1" on the ground. Never dropped below freezing.
2/23/2012 7:00 AM 0.50 3.0 M 2.5 M A mix of rain and snow during the day, not accumulating, and mostly snow. Then, wet snow, briefly heavy during the first half of the night.
2/24/2012 7:00 AM 0.04 0.0 M T M Some rain showers overnight with warm advection. Yesterday's snow melted fairly quickly.
2/25/2012 9:00 AM 0.35 0.7 M 0.7 M Rain showers during the day with a cold front and snow showers in the late afternoon/evening. Thunder around 330PM.
2/26/2012 7:00 AM 0.02 0.3 M 1.0 M light snow showers for most of the day. A brief burst of heavier snow as a band moved south across the area.
2/27/2012 7:00 AM T T M 1.0 M a brief flurry
2/28/2012 7:00 AM 0.00 0.0 M 0.0 M
2/29/2012 7:00 AM T T M 0.0 M a brief period of flurries late in the morning.
3/1/2012 7:00 AM 0.08 T M 0.0 M showers at times with some mixed precip (mainly sleet) at the start. Thunderstorm just before midnight.
3/2/2012 7:00 AM 0.01 0.0 M 0.0 M drizzle and light rain showers
3/3/2012 7:00 AM 0.19 0.0 M 0.0 M Warm frontal rain. Stong cold front with high winds moved in overnight.
3/4/2012 7:00 AM 0.04 0.4 M 0.4 M Lake effect snow flurries during the late morning and afternoon, with snow showers in the evening. Some graupel.
3/5/2012 7:00 AM T 0.2 M 0.5 M flurries at times with lake effect
3/6/2012 7:00 AM T T M T M a few lake effect flurries
3/7/2012 7:00 AM 0.00 0.0 M 0.0 M
3/8/2012 7:00 AM 0.00 0.0 M 0.0 M mid to upper 60s.
3/9/2012 7:00 AM 0.64 T M 0.0 M Rain ahead of a cold front during the day. cold front moved through around 4pm and rain changed to sleet, then snow before ending around 9pm, but with no accumulation.
3/10/2012 7:00 AM 0.03 0.1 M T M show showers
3/11/2012 7:00 AM 0.00 0.0 M 0.0 M
3/12/2012 7:00 AM 0.00 0.0 M 0.0 M
3/13/2012 7:00 AM 0.29 0.0 M 0.0 M A few hundredths with warm frontal rain late in the afternoon, then dry until a cold front in the morning. Most of it had moved through at obs time.
3/14/2012 7:00 AM T 0.0 M 0.0 M
3/15/2012 7:00 AM 0.00 0.0 M 0.0 M
3/16/2012 7:00 AM 0.07 0.0 M 0.0 M Showers during the morning.
3/17/2012 7:00 AM 0.01 0.0 M 0.0 M A few brief thunderstorms skimmed EA during the morning.
3/18/2012 7:00 AM 0.00 0.0 M M M
3/19/2012 7:00 AM T 0.0 M 0.0 M
3/20/2012 7:00 AM 0.00 0.0 M M M
3/21/2012 7:00 AM 0.00 0.0 M M M
3/22/2012 7:00 AM 0.00 0.0 M M M
3/23/2012 7:00 AM 0.00 0.0 M M M
3/24/2012 7:00 AM 0.00 0.0 M M M
3/25/2012 7:00 AM 0.51 M M M M Rain moved in from the south during the morning, with drizzle or cloudy skies throughout most of the afternoon. Then rain in the evening and overnight.
3/26/2012 7:00 AM 0.00 0.0 M M M
3/27/2012 7:00 AM 0.00 0.0 M M M
3/28/2012 7:00 AM T M M M M
3/29/2012 7:00 AM 0.11 M M M M est.
3/30/2012 7:00 AM 0.00 0.0 M M M
3/31/2012 7:00 AM 0.14 T M 0.0 M est.
4/1/2012 7:00 AM 0.03 M M M M est.
4/2/2012 7:00 AM 0.18 T M 0.0 M Rain most of the day, mixed with some sleet at times.
4/3/2012 7:00 AM 0.00 0.0 M M M
4/4/2012 7:00 AM 0.00 0.0 M M M
4/5/2012 7:00 AM 0.00 0.0 M M M
4/6/2012 7:00 AM 0.00 0.0 M M M
4/7/2012 7:00 AM 0.00 0.0 M M M
4/8/2012 7:00 AM 0.00 0.0 M M M
4/9/2012 7:00 AM T M M M M A brief shower around 4PM.
4/10/2012 7:00 AM 0.00 0.0 M M M
4/11/2012 8:00 AM 0.02 T M 0.0 M a few flakes mixed in.
4/12/2012 7:00 AM 0.11 M M M M
4/13/2012 7:00 AM 0.00 0.0 M M M
4/14/2012 7:00 AM 0.00 0.0 M M M
4/15/2012 7:00 AM 0.01 M M M M
4/16/2012 7:00 AM 0.07 M M M M showers during the day.
4/17/2012 7:00 AM T M M M M a few showers developed on a lake breeze/cold front in the afternoon to the north of EA then moved east. No thunder despite Slight Risk - too windy - convective initiation could not get started with updrafts sheared off.
4/18/2012 7:00 AM 0.00 0.0 M M M
4/19/2012 7:00 AM 0.00 0.0 M M M
4/20/2012 7:00 AM 0.00 0.0 M M M
4/21/2012 7:00 AM 0.30 M M M M Rain with slow moving cold front overnight.
4/22/2012 7:00 AM 0.32 M M M M
4/23/2012 7:00 AM 0.16 T M T M
4/24/2012 7:00 AM 0.76 1.2 M 1.0 M
4/25/2012 7:00 AM 0.04 M M M M
4/26/2012 7:00 AM 0.00 0.0 M M M
4/27/2012 7:00 AM 0.05 M M M M
4/28/2012 7:00 AM 0.00 0.0 M M M
4/29/2012 7:00 AM 0.00 0.0 M M M
4/30/2012 7:00 AM 0.00 0.0 M M M
5/1/2012 7:00 AM 0.57 M M M M with warm front.
5/2/2012 7:00 AM 0.02 M M M M drizzle
5/3/2012 7:00 AM 0.02 M M M M a broken line of thunderstorms moves SE across the region - one of the storms grazed EA.
5/4/2012 7:00 AM 0.10 M M M M A line of thunderstorms rapidly developed just east of Lake Erie and moved quickly to the SE shortly after 10PM.
5/5/2012 7:00 AM 0.00 0.0 M M M
5/6/2012 7:00 AM 0.00 0.0 M M M
5/7/2012 7:00 AM T M M M M
5/8/2012 7:00 AM 0.14 M M M M Not much rain to show for the "heavy rain" forecast.
5/9/2012 7:00 AM 0.31 M M M M Widespread rain the the morning moved off by afternoon with some clearing. Heaviest rain remained along the Lake Ontario shoreline.
5/10/2012 7:00 AM 0.00 0.0 M M M
5/11/2012 7:00 AM 0.00 0.0 M M M
5/12/2012 7:00 AM 0.00 0.0 M M M
5/13/2012 7:00 AM 0.00 0.0 M M M
5/14/2012 7:00 AM 0.00 0.0 M M M
5/15/2012 7:00 AM 0.00 0.0 M M M
5/16/2012 7:00 AM 0.00 0.0 M M M
5/17/2012 7:00 AM 0.04 M M M M brief shower with cold front during midday.
5/18/2012 7:00 AM 0.00 0.0 M M M
5/19/2012 7:00 AM 0.00 0.0 M M M
5/20/2012 7:00 AM 0.00 0.0 M M M
5/21/2012 7:00 AM 0.00 0.0 M M M
5/22/2012 7:00 AM 0.47 M M M M a brief shower in the evening, then a slow moving one overnight. .01 in the evening, and .46 overnight.
5/23/2012 7:00 AM 0.00 0.0 M M M
5/24/2012 7:00 AM 0.00 0.0 M M M
5/25/2012 7:00 AM 0.00 0.0 M M M
5/26/2012 7:00 AM 0.10 0.0 M M M Brief shower early in afternoon.
5/27/2012 7:00 AM 0.00 0.0 M M M
5/28/2012 7:00 AM 0.00 0.0 M M M
5/29/2012 7:00 AM 0.00 0.0 M M M
5/30/2012 7:00 AM 0.09 M M M M Thunderstorms developed before noon and moved eastward across the state ahead of a cold front.
5/31/2012 7:00 AM 0.00 0.0 M M M
6/1/2012 7:00 AM 0.03 M M M M rain with leading edge of warm air advection. A break in the rain at obs time.
6/2/2012 7:00 AM 0.67 M M M M nearly continuous rain for much of the day with a small squall line at 730PM associated with cold front.
6/3/2012 10:00 AM 0.60 M M M M Lake effect Rain in June? Thunderstorm at 3AM and 7AM.
6/4/2012 6:00 AM 0.65 M M M M Numerous showers under cold core.
6/5/2012 7:00 AM 0.04 M M M M drizzle and mist during the morning and early afternoon, then a brief shower around 10PM.
6/6/2012 7:00 AM 0.00 0.0 M M M
6/7/2012 7:00 AM 0.01 M M M M Some brief showers moved south across the area in the morning. Otherwise, it was a nice day with lake breeze convection between the Tonawandas and Rochester, with some higher terrain convection well inland.
6/8/2012 7:00 AM 0.00 0.0 M M M
6/9/2012 7:00 AM 0.14 M M M M Precip with warm front, ongoing.
6/10/2012 7:00 AM 0.15 M M M M Precip with warm front.
6/11/2012 7:00 AM 0.00 0.0 M M M
6/12/2012 7:00 AM 0.45 M M M M Rain continues ahead of cold front. Rain began just before sunset.
6/13/2012 7:00 AM 0.41 M M M M prefrontal rain shield at 7am moved off with several lines of convection that developed nearly overhead...one before noon, and one or two others in the afternoon. One broken line developed nearly overhead in the evening associated with the cold front, but only received drips.
6/14/2012 7:00 AM 0.00 0.0 M M M
6/15/2012 7:00 AM 0.00 0.0 M M M
6/16/2012 7:00 AM 0.00 0.0 M M M
6/17/2012 7:00 AM 0.00 0.0 M M M
6/18/2012 7:00 AM 0.09 M M M M Showers overnight with weak front.
6/19/2012 7:00 AM 0.10 M M M M
6/20/2012 7:00 AM 0.00 0.0 M M M
6/21/2012 7:00 AM 0.00 0.0 M M M
6/22/2012 7:00 AM 0.00 0.0 M M M
6/23/2012 7:00 AM 0.03 M M M M brief showers with cold front in morning just after yesterdays obs.
6/24/2012 7:00 AM 0.00 0.0 M M M
6/25/2012 7:00 AM 0.15 M M M M a line of thunderstorms developed nearly overhead with another line off lake erie as a cold front moved through.
6/26/2012 7:00 AM 0.00 0.0 M M M
6/27/2012 7:00 AM 0.00 0.0 M M M
6/28/2012 7:00 AM T M M M M
6/29/2012 7:00 AM 0.00 0.0 M M M
6/30/2012 7:00 AM 0.00 0.0 M M M
7/1/2012 7:00 AM 0.36 M M M M Thunderstorm at around midnight.
7/2/2012 7:00 AM 0.00 0.0 M M M
7/3/2012 7:00 AM 0.00 0.0 M M M
7/4/2012 7:00 AM 0.01 M M M M
7/5/2012 7:00 AM 0.00 0.0 M M M
7/6/2012 7:00 AM 0.00 0.0 M M M
7/7/2012 7:00 AM 0.00 0.0 M M M
7/8/2012 7:00 AM 0.10 M M M M Impressive looking squall line moved SE across the area but lacked punch as it moved through with only a short window (5-10 minutes) of heavy rain.
7/9/2012 7:00 AM 0.00 0.0 M M M
7/10/2012 7:00 AM 0.00 0.0 M M M
7/11/2012 7:00 AM 0.00 0.0 M M M
7/12/2012 7:00 AM 0.00 0.0 M M M
7/13/2012 7:00 AM 0.00 0.0 M M M
7/14/2012 7:00 AM 0.00 0.0 M M M
7/15/2012 7:00 AM 0.00 0.0 M M M
7/16/2012 7:00 AM 0.14 M M M M AM showers
7/17/2012 7:00 AM T M M M M
7/18/2012 7:00 AM 0.00 0.0 M M M
7/19/2012 7:00 AM 0.00 0.0 M M M
7/20/2012 7:00 AM 0.11 M M M M showers developed late in the afternoon and dripped into the evening.
7/21/2012 7:00 AM 0.16 M M M M showers around midday.
7/22/2012 7:00 AM 0.00 0.0 M M M
7/23/2012 7:00 AM 0.30 M M M M thunderstorms late at night.
7/24/2012 7:00 AM 0.02 M M M M brief shower from storms ahead of a cold front.
7/25/2012 7:00 AM 0.00 0.0 M M M
7/26/2012 7:00 AM 0.11 M M M M
7/27/2012 7:00 AM 0.72 M M M M showers and thunderstorms.
7/28/2012 7:00 AM 0.18 M M M M short shower around 2pm
7/29/2012 7:00 AM 0.01 M M M M
7/30/2012 7:00 AM 0.00 0.0 M M M
7/31/2012 7:00 AM 0.00 0.0 M M M
8/1/2012 7:00 AM 0.67 M M M M Showers and thunderstorms along a lake breeze and ahead of a cold front. There was also a gravity wave noted moving across Lake Erie. This may have contributed to some of the convection.
8/2/2012 7:00 AM 0.00 0.0 M M M
8/3/2012 7:00 AM 0.00 0.0 M M M a brief shower just to the N before sunrise.
8/4/2012 7:00 AM 0.00 0.0 M M M
8/5/2012 7:00 AM 0.00 0.0 M M M
8/6/2012 7:00 AM 1.99 M M M M Training storms on a lake breeze boundary, then heavy rain with some severe storm gusts with a mini bow segment.
8/7/2012 7:00 AM 0.00 0.0 M M M
8/8/2012 7:00 AM 0.00 0.0 M M M
8/9/2012 7:00 AM 0.00 0.0 M M M
8/10/2012 7:00 AM T M M M M
8/11/2012 7:00 AM T M M M M
8/12/2012 7:00 AM 0.10 M M M M
8/13/2012 7:00 AM 0.03 M M M M
8/14/2012 7:00 AM 0.01 M M M M
8/15/2012 7:00 AM 0.24 M M M M showers and a brief thunderstorm with weak trough.
8/16/2012 7:00 AM 0.00 0.0 M M M
8/17/2012 7:00 AM 0.15 M M M M showers with cold front.
8/18/2012 7:00 AM T M M M M
8/19/2012 7:00 AM 0.00 0.0 M M M
8/20/2012 7:00 AM 0.00 0.0 M M M
8/21/2012 7:00 AM 0.00 0.0 M M M
8/22/2012 7:00 AM 0.00 0.0 M M M
8/23/2012 7:00 AM 0.00 0.0 M M M
8/24/2012 7:00 AM 0.00 0.0 M M M
8/25/2012 7:00 AM 0.00 0.0 M M M
8/26/2012 7:00 AM 0.00 0.0 M M M
8/27/2012 7:00 AM 0.00 0.0 M M M
8/28/2012 7:00 AM 0.05 M M M M cold front.
8/29/2012 7:00 AM 0.00 0.0 M M M
8/30/2012 7:00 AM 0.00 0.0 M M M
8/31/2012 7:00 AM 0.00 0.0 M M M
9/1/2012 7:00 AM 0.00 0.0 M M M
9/2/2012 7:00 AM 0.00 0.0 M M M
9/3/2012 7:00 AM 0.00 0.0 M M M
9/4/2012 7:00 AM 0.00 0.0 M M M
9/5/2012 7:00 AM 1.59 M M M M Heavy rain event between 2-220PM - most of the rain fell during that time - see Significant weather report.
9/6/2012 7:00 AM 0.00 0.0 M M M
9/7/2012 7:00 AM T M M M M Brief shower overnight.
9/8/2012 7:00 AM 0.03 M M M M Thunderstorms moving to the NE just skimmed EA overnight, with most of the activity passing just W.
9/9/2012 7:00 AM 0.40 M M M M Several lines of convection moved though during the morning. Severe weather to the north.
9/10/2012 7:00 AM T M M M M
9/11/2012 7:00 AM 0.00 0.0 M M M
9/12/2012 7:00 AM 0.00 0.0 M M M
9/13/2012 7:00 AM 0.00 0.0 M M M
9/14/2012 7:00 AM 0.00 0.0 M M M
9/15/2012 7:00 AM 0.20 M M M M Rain with cold front during the afternoon.
9/16/2012 7:00 AM 0.00 0.0 M M M
9/17/2012 7:00 AM 0.00 0.0 M M M
9/18/2012 7:25 AM 0.05 M M M M Rain began shortly before observation
9/19/2012 7:00 AM 0.43 M M M M Rain continued ahead of cold front. Several thin bands passed overhead after main widespread band moved off to the east. Rain was over by 6PM.
9/20/2012 7:00 AM 0.00 0.0 M M M
9/21/2012 7:00 AM 0.01 M M M M brief shower overnight with warm front.
9/22/2012 7:00 AM 0.99 M M M M About .1 with a developing broken line of showers around 2PM. The rest is with a surge of moisture that moved across the region overnight.
9/23/2012 7:00 AM 0.24 M M M M A batch of rain moved in during the evening with a secondary front.
9/24/2012 8:20 AM 0.09 M M M M A bit of lake effect rain in the afternoon, then more overnight and during obs.
9/25/2012 7:00 AM 0.08 M M M M
9/26/2012 7:00 AM 0.01 M M M M
9/27/2012 7:00 AM 0.26 M M M M
9/28/2012 7:00 AM T M M M M
9/29/2012 7:00 AM 0.03 M M M M
9/30/2012 7:00 AM 0.12 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes



Observation Date Observation Time Notes Largest Stone Size Average Stone Size Smallest Stone Size Stone Consistency Duration Minutes Durration Accuracy Damage Timing More Rain than Hail Hail Started Largest Hail Started Angle of Impact Number of Stones on Pad Distance Between Stones on Pad Depth of Stones on Ground