Station Overview Station Location
Station Number NY-CT-11 Latitude 42.158704
Station Name Allegany 4.7 N Longitude -78.490541
County Cattaraugus Elevation (ft) 1667



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 09 3.54 0.75 2 0.75 2 0.00 0 0 2 0 5.7 2 2
Nov 09 3.68 0.10 1 0.10 1 0.00 0 0 1 0 0.5 1 1
Dec 09 3.24 2.63 19 2.63 19 0.00 0 0 17 2 24.7 16 19
Jan 10 2.76 3.27 22 3.27 22 0.00 0 0 16 6 25.1 15 21
Feb 10 2.21 1.72 23 1.72 23 0.00 0 0 16 6 26.4 19 23
March 10 2.96 1.66 12 1.66 12 0.00 0 0 9 0 0.9 3 6
April 10 3.41 2.29 9 2.29 9 0.00 0 0 9 0 0.5 1 1
May 10 3.82 3.67 16 3.67 16 0.00 0 0 11 2 0.4 1 1
June 10 4.91 4.66 22 4.66 22 0.00 0 0 18 3 0.0 0 0
July 10 4.52 5.47 14 5.47 14 0.00 0 0 9 3 0.0 0 0
Aug 10 4.06 3.36 16 3.36 16 0.00 0 0 13 2 0.0 0 0
Sept 10 4.09 3.20 22 1.78 12 1.42 10 1 9 3 0.0 0 0
Water Year Totals: 43.20" 32.78" 178 days 31.36" 168 1.42" 10 days 1 130 days 27 days 84.2" 58 days 74 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
10/1/2009
10/2/2009
10/3/2009
10/4/2009
10/5/2009
10/6/2009
10/7/2009
10/8/2009
10/9/2009
10/10/2009
10/11/2009
10/12/2009
10/13/2009
10/14/2009
10/15/2009
10/16/2009 0.55
10/17/2009 0.20
10/18/2009
10/19/2009
10/20/2009
10/21/2009
10/22/2009
10/23/2009
10/24/2009
10/25/2009
10/26/2009
10/27/2009
10/28/2009
10/29/2009
10/30/2009
10/31/2009
11/1/2009
11/2/2009
11/3/2009
11/4/2009
11/5/2009
11/6/2009
11/7/2009
11/8/2009
11/9/2009
11/10/2009
11/11/2009
11/12/2009
11/13/2009
11/14/2009
11/15/2009
11/16/2009
11/17/2009
11/18/2009
11/19/2009
11/20/2009
11/21/2009
11/22/2009
11/23/2009
11/24/2009
11/25/2009
11/26/2009
11/27/2009 0.10
11/28/2009
11/29/2009
11/30/2009
12/1/2009 0.10
12/2/2009
12/3/2009
12/4/2009
12/5/2009
12/6/2009 0.10
12/7/2009
12/8/2009 0.10
12/9/2009 0.35
12/10/2009 0.45
12/11/2009 0.10
12/12/2009 0.20
12/13/2009
12/14/2009
12/15/2009
12/16/2009 0.25
12/17/2009 0.10
12/18/2009
12/19/2009
12/20/2009 0.01
12/21/2009 0.02
12/22/2009 0.15
12/23/2009 T
12/24/2009 0.02
12/25/2009
12/26/2009 0.35
12/27/2009
12/28/2009 0.20
12/29/2009 0.12
12/30/2009 0.01
12/31/2009 T
Day of YearDaily PrcpMultiday Prcp
1/1/2010 0.20
1/2/2010 0.12
1/3/2010 0.05
1/4/2010 0.11
1/5/2010 0.05
1/6/2010 0.18
1/7/2010 T
1/8/2010 0.25
1/9/2010 0.05
1/10/2010
1/11/2010
1/12/2010 0.07
1/13/2010
1/14/2010
1/15/2010 T
1/16/2010
1/17/2010 T
1/18/2010 0.17
1/19/2010 T
1/20/2010 0.01
1/21/2010 T
1/22/2010
1/23/2010
1/24/2010
1/25/2010 1.70
1/26/2010 0.08
1/27/2010 T
1/28/2010 0.05
1/29/2010 0.15
1/30/2010 0.03
1/31/2010
2/1/2010 0.06
2/2/2010
2/3/2010 0.02
2/4/2010 0.03
2/5/2010
2/6/2010 T
2/7/2010 T
2/8/2010 0.01
2/9/2010 0.00
2/10/2010 0.29
2/11/2010 0.11
2/12/2010 T
2/13/2010 T
2/14/2010 0.07
2/15/2010 0.07
2/16/2010 0.13
2/17/2010 T
2/18/2010 0.12
2/19/2010 0.08
2/20/2010
2/21/2010
2/22/2010
2/23/2010 0.07
2/24/2010 0.01
2/25/2010 T
2/26/2010 0.30
2/27/2010 0.18
2/28/2010 0.17
3/1/2010 0.04
3/2/2010
3/3/2010
3/4/2010
3/5/2010
3/6/2010
3/7/2010
3/8/2010 0.00
3/9/2010 0.00
3/10/2010 0.00
3/11/2010
3/12/2010 0.12
3/13/2010 0.17
3/14/2010 0.23
3/15/2010 0.07
3/16/2010
3/17/2010
3/18/2010
3/19/2010
3/20/2010
3/21/2010
3/22/2010
3/23/2010 0.35
3/24/2010 0.25
3/25/2010
3/26/2010 0.35
3/27/2010
3/28/2010
3/29/2010 0.08
3/30/2010
3/31/2010
Day of YearDaily PrcpMultiday Prcp
4/1/2010
4/2/2010
4/3/2010
4/4/2010
4/5/2010
4/6/2010 0.21
4/7/2010
4/8/2010
4/9/2010 0.05
4/10/2010 0.06
4/11/2010
4/12/2010
4/13/2010
4/14/2010
4/15/2010
4/16/2010
4/17/2010 0.26
4/18/2010 0.03
4/19/2010 0.01
4/20/2010
4/21/2010
4/22/2010
4/23/2010
4/24/2010
4/25/2010 0.91
4/26/2010 0.08
4/27/2010 0.68
4/28/2010
4/29/2010
4/30/2010
5/1/2010
5/2/2010
5/3/2010 0.21
5/4/2010 0.13
5/5/2010
5/6/2010 0.61
5/7/2010
5/8/2010 0.28
5/9/2010 0.27
5/10/2010 T
5/11/2010
5/12/2010 1.31
5/13/2010
5/14/2010 0.31
5/15/2010 0.11
5/16/2010
5/17/2010
5/18/2010 0.06
5/19/2010 0.31
5/20/2010
5/21/2010
5/22/2010 T
5/23/2010 0.07
5/24/2010 0.00
5/25/2010
5/26/2010
5/27/2010
5/28/2010
5/29/2010 0.00
5/30/2010
5/31/2010 0.00
6/1/2010 0.63
6/2/2010 0.03
6/3/2010 0.24
6/4/2010 0.06
6/5/2010 0.36
6/6/2010 1.39
6/7/2010 0.14
6/8/2010
6/9/2010 0.01
6/10/2010 0.50
6/11/2010
6/12/2010 0.02
6/13/2010 0.01
6/14/2010 0.11
6/15/2010 T
6/16/2010 T
6/17/2010 0.09
6/18/2010
6/19/2010
6/20/2010 0.02
6/21/2010 0.00
6/22/2010
6/23/2010 T
6/24/2010 0.21
6/25/2010 0.08
6/26/2010
6/27/2010
6/28/2010 0.64
6/29/2010 0.12
6/30/2010
Day of YearDaily PrcpMultiday Prcp
7/1/2010
7/2/2010
7/3/2010
7/4/2010
7/5/2010
7/6/2010
7/7/2010
7/8/2010
7/9/2010
7/10/2010 0.64
7/11/2010
7/12/2010
7/13/2010 0.09
7/14/2010 0.00
7/15/2010
7/16/2010 0.00
7/17/2010
7/18/2010 T
7/19/2010 0.02
7/20/2010 T
7/21/2010 0.03
7/22/2010 T
7/23/2010 0.77
7/24/2010 1.37
7/25/2010 0.90
7/26/2010 0.80
7/27/2010
7/28/2010
7/29/2010 0.85
7/30/2010
7/31/2010
8/1/2010
8/2/2010 0.01
8/3/2010 T
8/4/2010 0.01
8/5/2010 0.29
8/6/2010 0.45
8/7/2010 0.05
8/8/2010
8/9/2010
8/10/2010 0.34
8/11/2010
8/12/2010 T
8/13/2010
8/14/2010
8/15/2010 0.13
8/16/2010 0.30
8/17/2010 0.00
8/18/2010
8/19/2010
8/20/2010 0.07
8/21/2010
8/22/2010 1.45
8/23/2010 0.03
8/24/2010 0.13
8/25/2010
8/26/2010 0.10
8/27/2010
8/28/2010
8/29/2010
8/30/2010
8/31/2010
9/1/2010
9/2/2010
9/3/2010
9/4/2010 0.19
9/5/2010 0.24
9/6/2010 T
9/7/2010 **
9/8/2010 **
9/9/2010 **
9/10/2010 **
9/11/2010 **
9/12/2010 **
9/13/2010 **
9/14/2010 **
9/15/2010 **
9/16/2010 1.42
9/17/2010 0.34
9/18/2010
9/19/2010 0.01
9/20/2010 0.01
9/21/2010
9/22/2010 T
9/23/2010 0.26
9/24/2010
9/25/2010
9/26/2010
9/27/2010 T
9/28/2010 0.55
9/29/2010 0.05
9/30/2010 0.13



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/16/2009 7:00 AM 0.55 3.7 0.00 3.7 M very wet snow; losing base as snow continued to fall
10/17/2009 7:00 AM 0.20 2.0 M 4.0 M snowed almost continuously from afternoon of 10/15 to roughly noon on 10/17 but snow only accumulated overnight on 15th and 16th.
11/27/2009 7:00 PM 0.10 0.5 0.10 0.5 M heavy burst of very wet snow which melted within hour of falling.
12/1/2009 7:00 AM 0.10 1.0 0.10 1.0 M
12/6/2009 7:00 AM 0.10 1.0 0.10 1.0 M
12/8/2009 7:00 AM 0.10 1.0 0.10 1.0 M
12/9/2009 7:00 AM 0.35 2.5 M 2.5 M
12/10/2009 7:00 AM 0.45 M 0.45 1.0 M
12/11/2009 7:00 AM 0.10 1.0 0.10 1.0 M very high winds; snow measurement difficult.
12/12/2009 7:00 AM 0.20 3.5 0.20 3.5 M
12/16/2009 7:00 AM 0.25 3.5 0.25 4.0 M
12/17/2009 7:00 AM 0.10 2.0 M 4.5 M
12/20/2009 7:00 AM 0.01 0.1 M 2.5 M
12/21/2009 7:00 AM 0.02 0.3 M 2.5 M
12/22/2009 7:00 AM 0.15 2.2 M 4.0 M
12/23/2009 7:00 AM T 0.1 M 4.0 M Overnight low 3 F; trace of snow very dry.
12/24/2009 7:00 AM 0.02 0.4 M 4.0 M
12/26/2009 7:00 AM 0.35 0.0 M 1.0 M rain fell as frozen rain and sleet from approximately 11:30 am on 12/25 until approximately 3:00 pm 12/25 and then just rain and drizzle.
12/28/2009 7:00 AM 0.20 3.3 M 4.0 M
12/29/2009 7:00 AM 0.12 2.5 M 5.5 M
12/30/2009 7:00 AM 0.01 0.3 M 4.0 M
12/31/2009 7:00 AM T T M 4.0 M
1/1/2010 7:00 AM 0.20 2.2 M 6.0 M
1/2/2010 7:00 AM 0.12 2.0 M 6.8 M
1/3/2010 7:00 AM 0.05 0.7 M 7.2 M
1/4/2010 7:00 AM 0.11 3.5 M 9.5 M very windy on 1/3/10; considerable blowing and drifting of snow.
1/5/2010 7:00 AM 0.05 2.0 M 10.0 M
1/6/2010 7:00 AM 0.18 2.7 M 10.5 M
1/7/2010 7:00 AM T T M 9.0 M
1/8/2010 7:00 AM 0.25 3.5 M 10.5 M
1/9/2010 7:00 AM 0.05 2.0 M 10.5 M
1/12/2010 7:00 AM 0.07 1.2 M 9.0 M
1/15/2010 7:00 AM T M M 6.0 M
1/17/2010 7:00 AM T M M 5.0 M Freezing fog over night
1/18/2010 7:00 AM 0.17 0.0 M 4.0 M
1/19/2010 7:00 AM T 0.1 M 2.0 M
1/20/2010 7:00 AM 0.01 0.4 M 2.0 M
1/21/2010 7:00 AM T T M 2.0 M
1/25/2010 7:00 AM 1.70 0.0 M 0.0 M Five Mile Creek and Allegheny River both at bank full at 7AM.....Some local street and small stream flooding which has since receded as of 2PM.
1/26/2010 7:00 AM 0.08 0.3 M 0.3 M rain showers changed over to snow showers just before darkness on 1/25.
1/27/2010 7:00 AM T T M 0.2 M
1/28/2010 7:00 AM 0.05 1.0 M 1.0 M
1/29/2010 7:00 AM 0.15 3.0 M 3.3 M
1/30/2010 7:00 AM 0.03 0.5 M 3.0 M
2/1/2010 7:00 AM 0.06 1.5 M 3.0 M
2/3/2010 7:00 AM 0.02 0.3 M 3.0 M
2/4/2010 7:00 AM 0.03 0.6 M 3.5 M
2/6/2010 7:00 AM T T M 2.5 M
2/7/2010 7:00 AM T T M 2.5 M
2/8/2010 7:00 AM 0.01 0.3 M 2.5 M
2/9/2010 7:00 AM 0.00 0.0 M 2.5 M
2/10/2010 8:00 AM 0.29 4.0 M 6.0 M
2/11/2010 7:00 AM 0.11 1.8 M 7.0 M Two day total for the event was 5.8 inches...
2/12/2010 7:00 AM T 0.2 M 7.0 M
2/13/2010 7:00 AM T 0.2 M 6.5 M
2/14/2010 7:00 AM 0.07 1.4 M 7.5 M
2/15/2010 8:00 AM 0.07 1.3 M 7.0 M
2/16/2010 8:00 AM 0.13 2.2 M 8.5 M
2/17/2010 7:00 AM T 0.1 M 7.5 M
2/18/2010 7:00 AM 0.12 2.0 M 8.5 M
2/19/2010 7:00 AM 0.08 1.8 M 9.0 M !.8 inches of snow measured at 11 pm 2/18 when snow event ended..Overnight, a thin veneer of freezing drizzle coated exposed surfaces and formed a thin crust on the newly fallen snow
2/23/2010 7:00 AM 0.07 0.3 M 5.5 M
2/24/2010 7:00 AM 0.01 T M 5.5 M
2/25/2010 7:00 AM T 0.1 M 5.5 M
2/26/2010 8:00 AM 0.30 3.5 M 9.0 M Frozen drizzle had fallen at some point over night with the snow...thin veneer of ice found on exposed surfaces
2/27/2010 8:00 AM 0.18 2.8 M 11.5 M Two day storm total 6.3 inches....snowing now at 12;28PM, but little snow overnight from 8:30 pm last evening until 8am this morning.
2/28/2010 8:00 AM 0.17 2.0 M 13.0 M
3/1/2010 7:00 AM 0.04 0.4 0.04 12.0 M
3/8/2010 7:00 AM 0.00 0.0 M 6.0 M
3/9/2010 7:00 AM 0.00 0.0 M 4.0 M
3/10/2010 7:00 AM 0.00 0.0 M 3.0 M Total snow immediately in and around house (lawn) has shrunk with string of warmer days but snow pack on the hills behind my house have significantly more snow on the ground....a lot of moisture held in remaining snow pack.
3/12/2010 8:00 AM 0.12 0.0 M 1.0 M
3/13/2010 7:00 AM 0.17 0.0 M T M
3/14/2010 8:00 AM 0.23 T M T M
3/15/2010 8:00 AM 0.07 0.2 M T M 0.2 of snow fell between 8am and 10am Sunday, 3/14, and quickly melted when it ended.
3/23/2010 7:00 AM 0.35 M M M M
3/24/2010 7:00 AM 0.25 T M T M
3/26/2010 7:00 AM 0.35 0.3 M 0.3 M
3/29/2010 7:00 AM 0.08 M M M M
4/6/2010 7:00 AM 0.21 M M M M
4/9/2010 7:00 AM 0.05 M M M M
4/10/2010 7:00 AM 0.06 0.5 M 0.5 M snow showers on and off all afternoon of 4/9. Snow did not start to stick until about 4PM. Snow showers picked up late in the day and evening....Temperatures below freezing by nightfall.
4/17/2010 8:00 AM 0.26 T M T M
4/18/2010 7:00 AM 0.03 T M T M
4/19/2010 7:00 AM 0.01 M M M M
4/25/2010 8:00 AM 0.91 M M M M
4/26/2010 7:00 AM 0.08 M M M M
4/27/2010 7:00 AM 0.68 M M M M
5/3/2010 7:00 AM 0.21 M M M M
5/4/2010 7:00 AM 0.13 M M M M
5/6/2010 7:00 AM 0.61 M M M M
5/8/2010 7:00 AM 0.28 M M M M
5/9/2010 7:00 AM 0.27 0.4 M 0.4 0.05
5/10/2010 7:00 AM T T M M M Snow flurries in the morning Sunday and still quite windy.....Slowly cleared off in the afternoon. Heavy frost this morning, Monday..recorded an overnight low of 23 F.
5/12/2010 7:00 AM 1.31 M M M M Pea sized hail at 6:23 PM.....At 6:30 moderate rain mixed with wet snow....Temperature at the time was 36 F and temperatures actually rose slightly over night to the low 40s this morning.
5/14/2010 7:00 AM 0.31 M M M M
5/15/2010 7:00 AM 0.11 M M M M
5/18/2010 7:00 AM 0.06 M M M M
5/19/2010 7:00 AM 0.31 M M M M
5/22/2010 7:00 AM T M M M M
5/23/2010 7:00 AM 0.07 M M M M
5/24/2010 7:00 AM 0.00 0.0 M M M
5/29/2010 7:00 AM 0.00 0.0 M M M
5/31/2010 7:00 AM 0.00 0.0 M M M
6/1/2010 7:00 AM 0.63 M M M M Initial interval of rain started at 4:02 PM Sunday with heavy rain, high winds, and frequent lighting....That initial interval of intense rain ended by 4:30 PM with additional periods of rain later in the evening and overnight.
6/2/2010 7:00 AM 0.03 M M M M
6/3/2010 7:00 AM 0.24 M M M M
6/4/2010 7:00 AM 0.06 M M M M Very heavy downpours just south of my reporting station last evening between 8:30pm and 9:00pm.
6/5/2010 7:00 AM 0.36 M M M M
6/6/2010 7:00 AM 1.39 M M M M a number of downpours between approximately 1am until 5am overnight with fairly frequent lightning and very windy.
6/7/2010 7:00 AM 0.14 M M M M 0.13 of 0.14 inches of rain recorded occurred between 7am and 8am during a quick thunderstorm.
6/9/2010 7:00 AM 0.01 M M M M
6/10/2010 7:00 AM 0.50 M M M M All rain between 7am and approximately 2pm. Fog in overnight hours.
6/12/2010 6:00 AM 0.02 M M M M
6/13/2010 7:00 AM 0.01 M M M M
6/14/2010 7:00 AM 0.11 M M M M
6/15/2010 7:00 AM T M M M M
6/16/2010 7:00 AM T M M M M
6/17/2010 7:00 AM 0.09 M M M M Two very brief downpours.....one around 8am and another a little after 4pm....saw nothing of the severe weather at my location....heavier rain south and north of my location.
6/20/2010 7:00 AM 0.02 M M M M
6/21/2010 7:00 AM 0.00 0.0 M M M
6/23/2010 7:00 AM T M M M M
6/24/2010 7:00 AM 0.21 M M M M
6/25/2010 7:00 AM 0.08 M M M M
6/28/2010 7:00 AM 0.64 M M M M
6/29/2010 7:00 AM 0.12 M M M M
7/10/2010 7:00 AM 0.64 M M M M
7/13/2010 7:00 AM 0.09 M M M M
7/14/2010 7:00 AM 0.00 0.0 M M M
7/16/2010 6:00 AM 0.00 0.0 M M M First wave of Thunderstorms just arriving at 6:30 am Friday, 7/16.
7/18/2010 7:00 AM T M M M M
7/19/2010 7:00 AM 0.02 M M M M
7/20/2010 7:00 AM T M M M M
7/21/2010 7:00 AM 0.03 M M M M
7/22/2010 7:00 AM T M M M M
7/23/2010 7:00 AM 0.77 M M M M
7/24/2010 7:00 AM 1.37 M M M M
7/25/2010 7:00 AM 0.90 M M M M 0.89 inches of rain fell between approximately 5:30 pm and 6:00 PM.....Storm was accompanied by winds gusts estimated to be greater than 50 MPH.....Most intense portion of storm occurred around 5:45PM.
7/26/2010 7:00 AM 0.80 M M M M
7/29/2010 7:00 AM 0.85 M M M M
8/2/2010 7:00 AM 0.01 M M M M
8/3/2010 7:00 AM T M M M M
8/4/2010 7:00 AM 0.01 M M M M
8/5/2010 7:00 AM 0.29 M M M M
8/6/2010 7:00 AM 0.45 M M M M 0.32" in morning in 7:30 to 8:30 time frame and 0.13 at night around 9pm. Including yesterday's 0.29", all 0.74" fell on calendar day 8/5/10.
8/7/2010 7:00 AM 0.05 M M M M
8/10/2010 8:00 AM 0.34 M M M M
8/12/2010 7:00 AM T M M M M
8/15/2010 8:00 AM 0.13 M M M M
8/16/2010 7:00 AM 0.30 M M M M Only a trace of rain after 11 am Sunday....Predicted thunderstorms never developed in my reporting area.
8/17/2010 7:00 AM 0.00 0.0 M M M
8/20/2010 7:00 AM 0.07 M M M M
8/22/2010 8:00 AM 1.45 M M M M
8/23/2010 7:00 AM 0.03 M M M M
8/24/2010 7:00 AM 0.13 M M M M
8/26/2010 7:00 AM 0.10 M M M M
9/4/2010 7:00 AM 0.19 M M M M
9/5/2010 7:00 AM 0.24 M M M M
9/6/2010 7:00 AM T M M M M
9/17/2010 7:00 AM 0.34 M M M M rainfall from 7PM on 9/16 until 7am on 9/17. Rain gauge was emptied and reported (multiple day report) for the 9 days up to 7PM on 9/16.
9/19/2010 7:00 AM 0.01 M M M M
9/20/2010 7:00 AM 0.01 M M M M
9/22/2010 7:00 AM T M M M M
9/23/2010 7:00 AM 0.26 M M M M
9/27/2010 7:00 AM T M M M M
9/28/2010 7:00 AM 0.55 M M M M
9/29/2010 7:00 AM 0.05 M M M M
9/30/2010 7:00 AM 0.13 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
9/7/2010 9/16/2010 7:00 PM 10 1.42 M M It appears that a good portion of this 9 day running total occurred on the 16th.



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