Station Overview Station Location
Station Number NJ-MC-56 Latitude 40.32654
Station Name West Windsor Twp 2.6 N Longitude -74.63114
County Mercer Elevation (ft) 82



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 19 3.93 5.38 30 5.38 30 0.00 0 0 13 3 0.0 0 0
Nov 19 3.67 1.72 30 1.72 30 0.00 0 0 8 0 0.0 0 0
Dec 19 3.99 5.97 31 5.97 25 0.00 6 1 12 3 1.0 2 1
Jan 20 3.38 2.05 31 2.05 31 0.00 0 0 11 1 2.0 2 2
Feb 20 2.68 2.76 29 2.76 29 0.00 0 0 15 1 0.0 0 0
March 20 4.09 4.42 31 4.42 31 0.00 0 0 15 5 0.0 0 0
April 20 4.12 4.21 28 4.05 26 0.16 2 1 13 8 0.0 0 0
May 20 4.16 1.96 30 1.96 30 0.00 0 0 11 4 0.0 0 0
June 20 4.26 3.45 30 3.45 30 0.00 0 0 7 3 0.0 0 0
July 20 5.36 4.91 31 4.91 31 0.00 0 0 11 5 0.0 0 0
Aug 20 4.04 5.34 31 4.99 29 0.35 2 1 16 4 0.0 0 0
Sept 20 4.32 5.60 29 5.60 29 0.00 0 0 9 2 0.0 0 0
Water Year Totals: 48.00" 47.77" 361 days 47.26" 351 0.51" 10 days 3 141 days 39 days 3.0" 4 days 3 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
10/1/2019 0.05
10/2/2019 0.00
10/3/2019 0.51
10/4/2019 0.15
10/5/2019 0.00
10/6/2019 0.00
10/7/2019 T
10/8/2019 0.13
10/9/2019 T
10/10/2019 0.44
10/11/2019 0.00
10/12/2019 0.00
10/13/2019 0.00
10/14/2019 T
10/15/2019
10/16/2019 0.00
10/17/2019 1.08
10/18/2019 0.00
10/19/2019 0.00
10/20/2019 0.00
10/21/2019 0.62
10/22/2019 0.00
10/23/2019 0.61
10/24/2019 0.00
10/25/2019 0.00
10/26/2019 0.00
10/27/2019 0.23
10/28/2019 0.95
10/29/2019 0.06
10/30/2019 0.05
10/31/2019 0.50
11/1/2019 0.34
11/2/2019 0.00
11/3/2019 0.00
11/4/2019 0.00
11/5/2019 0.00
11/6/2019 0.00
11/7/2019 0.00
11/8/2019 0.14
11/9/2019 0.00
11/10/2019 0.00
11/11/2019 0.00
11/12/2019 0.03
11/13/2019 0.02
11/14/2019 0.00
11/15/2019 0.00
11/16/2019 0.00
11/17/2019 0.00
11/18/2019 0.00
11/19/2019 0.25
11/20/2019 0.00
11/21/2019 0.00
11/22/2019 0.00
11/23/2019 0.05
11/24/2019 0.79
11/25/2019 0.10
11/26/2019 0.00
11/27/2019 0.00
11/28/2019 0.00
11/29/2019 0.00
11/30/2019 0.00
12/1/2019 0.00
12/2/2019 0.57
12/3/2019 0.29
12/4/2019 0.00
12/5/2019 T
12/6/2019 T
12/7/2019 0.00
12/8/2019 0.00
12/9/2019 0.38
12/10/2019 1.18
12/11/2019 0.33
12/12/2019 0.01
12/13/2019 0.00
12/14/2019 1.07
12/15/2019 0.05
12/16/2019 0.00
12/17/2019 0.90
12/18/2019 0.41
12/19/2019 T
12/20/2019 0.00
12/21/2019 **
12/22/2019 **
12/23/2019 **
12/24/2019 **
12/25/2019 **
12/26/2019 0.00
12/27/2019 0.00
12/28/2019 0.00
12/29/2019 0.00
12/30/2019 0.56
12/31/2019 0.22
Day of YearDaily PrcpMultiday Prcp
1/1/2020 0.00
1/2/2020 0.00
1/3/2020 0.10
1/4/2020 0.16
1/5/2020 0.04
1/6/2020 0.01
1/7/2020 0.00
1/8/2020 0.01
1/9/2020 0.00
1/10/2020 0.00
1/11/2020 0.00
1/12/2020 0.10
1/13/2020 0.00
1/14/2020 0.00
1/15/2020 0.04
1/16/2020 0.05
1/17/2020 T
1/18/2020 0.00
1/19/2020 0.26
1/20/2020 0.00
1/21/2020 0.00
1/22/2020 0.00
1/23/2020 0.00
1/24/2020 0.00
1/25/2020 0.12
1/26/2020 1.16
1/27/2020 0.00
1/28/2020 0.00
1/29/2020 0.00
1/30/2020 0.00
1/31/2020 0.00
2/1/2020 0.03
2/2/2020 0.04
2/3/2020 0.08
2/4/2020 0.02
2/5/2020 0.02
2/6/2020 0.60
2/7/2020 0.29
2/8/2020 0.10
2/9/2020 0.00
2/10/2020 0.05
2/11/2020 0.68
2/12/2020 0.06
2/13/2020 0.21
2/14/2020 0.21
2/15/2020 0.00
2/16/2020 0.00
2/17/2020 0.00
2/18/2020 0.00
2/19/2020 0.00
2/20/2020 0.00
2/21/2020 0.00
2/22/2020 0.00
2/23/2020 0.00
2/24/2020 0.00
2/25/2020 0.00
2/26/2020 0.22
2/27/2020 0.15
2/28/2020 0.00
2/29/2020 T
3/1/2020 T
3/2/2020 0.00
3/3/2020 T
3/4/2020 0.48
3/5/2020 0.00
3/6/2020 0.00
3/7/2020 0.28
3/8/2020 0.00
3/9/2020 0.00
3/10/2020 0.00
3/11/2020 T
3/12/2020 0.00
3/13/2020 0.41
3/14/2020 0.03
3/15/2020 0.01
3/16/2020 0.00
3/17/2020 0.04
3/18/2020 0.12
3/19/2020 1.07
3/20/2020 0.01
3/21/2020 T
3/22/2020 0.00
3/23/2020 0.04
3/24/2020 1.06
3/25/2020 0.00
3/26/2020 0.03
3/27/2020 T
3/28/2020 0.00
3/29/2020 0.71
3/30/2020 0.07
3/31/2020 0.06
Day of YearDaily PrcpMultiday Prcp
4/1/2020 T
4/2/2020 0.00
4/3/2020 T
4/4/2020 T
4/5/2020 0.02
4/6/2020 0.08
4/7/2020 0.00
4/8/2020 0.62
4/9/2020 T
4/10/2020 0.11
4/11/2020 T
4/12/2020 0.00
4/13/2020 0.89
4/14/2020 0.94
4/15/2020 0.02
4/16/2020 0.00
4/17/2020 0.00
4/18/2020 0.10
4/19/2020 0.02
4/20/2020
4/21/2020
4/22/2020 0.27
4/23/2020 T
4/24/2020 0.67
4/25/2020 0.29
4/26/2020 0.02
4/27/2020 **
4/28/2020 0.16
4/29/2020 T
4/30/2020 T
5/1/2020 0.53
5/2/2020 0.02
5/3/2020 0.07
5/4/2020 0.00
5/5/2020 0.00
5/6/2020 0.00
5/7/2020 0.10
5/8/2020 0.00
5/9/2020 0.58
5/10/2020 T
5/11/2020 0.00
5/12/2020 0.11
5/13/2020 0.00
5/14/2020 0.00
5/15/2020 0.02
5/16/2020 T
5/17/2020 0.00
5/18/2020 T
5/19/2020 0.00
5/20/2020 0.00
5/21/2020 0.00
5/22/2020 0.00
5/23/2020 0.28
5/24/2020 0.22
5/25/2020 T
5/26/2020 0.00
5/27/2020 0.00
5/28/2020
5/29/2020 0.01
5/30/2020 0.02
5/31/2020 0.00
6/1/2020 0.00
6/2/2020 0.00
6/3/2020 T
6/4/2020 0.52
6/5/2020 0.48
6/6/2020 1.04
6/7/2020 0.00
6/8/2020 0.00
6/9/2020 0.00
6/10/2020 0.00
6/11/2020 T
6/12/2020 0.35
6/13/2020 0.00
6/14/2020 0.00
6/15/2020 0.00
6/16/2020 0.00
6/17/2020 0.00
6/18/2020 0.00
6/19/2020 0.05
6/20/2020 0.00
6/21/2020 T
6/22/2020 0.00
6/23/2020 0.00
6/24/2020 0.00
6/25/2020 0.00
6/26/2020 0.00
6/27/2020 0.00
6/28/2020 1.00
6/29/2020 0.01
6/30/2020 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2020 0.00
7/2/2020 0.19
7/3/2020 T
7/4/2020 0.76
7/5/2020 0.00
7/6/2020 0.00
7/7/2020 T
7/8/2020 T
7/9/2020 0.03
7/10/2020 0.00
7/11/2020 2.36
7/12/2020 T
7/13/2020 0.21
7/14/2020 0.00
7/15/2020 0.00
7/16/2020 0.00
7/17/2020 0.00
7/18/2020 0.01
7/19/2020 0.00
7/20/2020 0.00
7/21/2020 0.00
7/22/2020 0.01
7/23/2020 0.24
7/24/2020 0.69
7/25/2020 0.06
7/26/2020 0.00
7/27/2020 T
7/28/2020 0.00
7/29/2020 0.00
7/30/2020 0.00
7/31/2020 0.35
8/1/2020 0.02
8/2/2020 0.06
8/3/2020 T
8/4/2020 0.19
8/5/2020 1.06
8/6/2020 0.01
8/7/2020 0.17
8/8/2020 0.51
8/9/2020 T
8/10/2020 0.00
8/11/2020 0.00
8/12/2020 T
8/13/2020 0.01
8/14/2020 1.47
8/15/2020 0.00
8/16/2020 **
8/17/2020 0.35
8/18/2020 0.20
8/19/2020 0.00
8/20/2020 0.51
8/21/2020 0.00
8/22/2020 0.00
8/23/2020 0.00
8/24/2020 T
8/25/2020 0.00
8/26/2020 0.40
8/27/2020 0.01
8/28/2020 0.18
8/29/2020 0.16
8/30/2020 0.03
8/31/2020 0.00
9/1/2020 0.02
9/2/2020 T
9/3/2020 0.02
9/4/2020 2.39
9/5/2020 0.00
9/6/2020
9/7/2020 0.00
9/8/2020 0.00
9/9/2020 0.00
9/10/2020 0.57
9/11/2020 0.34
9/12/2020 0.01
9/13/2020 0.00
9/14/2020 0.00
9/15/2020 0.00
9/16/2020 0.00
9/17/2020 0.00
9/18/2020 T
9/19/2020 0.00
9/20/2020 0.00
9/21/2020 0.00
9/22/2020 0.00
9/23/2020 0.00
9/24/2020 0.00
9/25/2020 0.00
9/26/2020 0.01
9/27/2020 0.00
9/28/2020 0.04
9/29/2020 0.00
9/30/2020 2.20



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2019 7:00 AM 0.05 M M M M
10/2/2019 7:00 AM 0.00 0.0 M M M
10/3/2019 7:00 AM 0.51 M M M M
10/4/2019 7:00 AM 0.15 M M M M All of that accumulation is mostly mist, all day long.
10/5/2019 7:00 AM 0.00 0.0 M M M
10/6/2019 7:00 AM 0.00 0.0 M M M
10/7/2019 7:00 AM T M M M M
10/8/2019 7:00 AM 0.13 M M M M
10/9/2019 7:00 AM T M M M M
10/10/2019 7:00 AM 0.44 M M M M Light rain in the afternoon and chilly in the mid 50's
10/11/2019 7:00 AM 0.00 0.0 M M M
10/12/2019 7:00 AM 0.00 0.0 M M M
10/13/2019 7:00 AM 0.00 0.0 M M M
10/14/2019 7:00 AM T M M M M
10/16/2019 7:00 AM 0.00 0.0 M M M
10/17/2019 7:00 AM 1.08 M M M M
10/18/2019 7:00 AM 0.00 0.0 M M M
10/19/2019 7:00 AM 0.00 0.0 M M M
10/20/2019 7:00 AM 0.00 0.0 M M M
10/21/2019 7:00 AM 0.62 M M M M
10/22/2019 7:00 AM 0.00 0.0 M M M
10/23/2019 7:00 AM 0.61 M M M M
10/24/2019 7:00 AM 0.00 0.0 M M M
10/25/2019 7:00 AM 0.00 0.0 M M M
10/26/2019 7:00 AM 0.00 0.0 M M M
10/27/2019 8:30 AM 0.23 M M M M Ongoing rain as measurement was read.
10/28/2019 7:00 AM 0.95 M M M M
10/29/2019 7:00 AM 0.06 M M M M
10/30/2019 7:00 AM 0.05 M M M M
10/31/2019 7:00 AM 0.50 M M M M
11/1/2019 7:00 AM 0.34 M M M M
11/2/2019 7:00 AM 0.00 0.0 M M M
11/3/2019 7:00 AM 0.00 0.0 M M M
11/4/2019 7:00 AM 0.00 0.0 M M M
11/5/2019 7:00 AM 0.00 0.0 M M M
11/6/2019 7:00 AM 0.00 0.0 M M M
11/7/2019 7:00 AM 0.00 0.0 M M M
11/8/2019 7:00 AM 0.14 M M M M
11/9/2019 7:00 AM 0.00 0.0 M M M
11/10/2019 7:00 AM 0.00 0.0 M M M
11/11/2019 7:00 AM 0.00 0.0 M M M
11/12/2019 7:00 AM 0.03 M M M M
11/13/2019 7:00 AM 0.02 T M M M Light rain changed over to light snow from 10:30 to 12:30 (MG note: based on above, set un-entered new snow depth to "T". OST 11/13/2019 8:55 AM)
11/14/2019 7:00 AM 0.00 0.0 M M M
11/15/2019 7:00 AM 0.00 0.0 M M M
11/16/2019 7:00 AM 0.00 0.0 M M M
11/17/2019 7:00 AM 0.00 0.0 M M M
11/18/2019 7:00 AM 0.00 0.0 M M M
11/19/2019 7:00 AM 0.25 M M M M
11/20/2019 7:00 AM 0.00 0.0 M M M
11/21/2019 7:00 AM 0.00 0.0 M M M
11/22/2019 7:00 AM 0.00 0.0 M M M
11/23/2019 7:00 AM 0.05 M M M M
11/24/2019 7:00 AM 0.79 M M M M
11/25/2019 7:00 AM 0.10 M M M M
11/26/2019 7:00 AM 0.00 0.0 M M M
11/27/2019 7:00 AM 0.00 0.0 M M M
11/28/2019 7:00 AM 0.00 0.0 M M M
11/29/2019 7:00 AM 0.00 0.0 M M M
11/30/2019 7:00 AM 0.00 0.0 M M M
12/1/2019 7:00 AM 0.00 0.0 M M M
12/2/2019 7:00 AM 0.57 M M M M In that morning, a bit trace of sleet and freezing rain at the onset of the precipitation
12/3/2019 7:00 AM 0.29 0.4 M T M Wet snow falling most of the day, with little accumulation
12/4/2019 7:00 AM 0.00 0.0 M T M Snow showers just began after 7 am today
12/5/2019 7:00 AM T M M M M A bit of flurries last morning
12/6/2019 7:00 AM T M M M M Some graupel snow flurries falling at the afternoon before.
12/7/2019 7:00 AM 0.00 0.0 M M M
12/8/2019 7:00 AM 0.00 0.0 M M M
12/9/2019 7:00 AM 0.38 M M M M
12/10/2019 7:00 AM 1.18 M M M M
12/11/2019 7:00 AM 0.33 0.6 M 0.6 M Rain changed over to snow around 2:30 am, heaviest at 5:00 am
12/12/2019 7:00 AM 0.01 M M T M Continuing snow showers after the last measurements was taken.
12/13/2019 7:00 AM 0.00 0.0 M T M
12/14/2019 7:00 AM 1.07 M M M M
12/15/2019 7:00 AM 0.05 M M M M
12/16/2019 7:00 AM 0.00 0.0 M M M
12/17/2019 9:30 AM 0.90 M M M M Some snow flurries yesterday,no accumulation. This morning, observed some ice accumulation on trees, but nothing on roads or sidewalks about 4 miles Northwest of this station no ice accmulation here.
12/18/2019 7:00 AM 0.41 M M M M
12/19/2019 7:00 AM T T M M M Snow squalls nearby gotten up to 0.2" of snow but this location, just a trace, all of it evaporated overnight
12/20/2019 7:00 AM 0.00 0.0 M M M
12/27/2019 7:00 AM 0.00 0.0 M M M
12/28/2019 7:00 AM 0.00 0.0 M M M
12/29/2019 7:00 AM 0.00 0.0 M M M
12/30/2019 8:30 AM 0.56 M M M M
12/31/2019 7:00 AM 0.22 M M M M
1/1/2020 7:00 AM 0.00 0.0 M M M
1/2/2020 7:00 AM 0.00 0.0 M M M
1/3/2020 6:00 PM 0.10 M M M M Took measurements late in the day, but most precipitation has occurred in early morning hours.
1/4/2020 7:00 AM 0.16 M M M M
1/5/2020 7:00 AM 0.04 M M M M
1/6/2020 7:00 AM 0.01 0.8 M 0.8 M Unexpected to have snow this morning the forecast did not say that we might get snow.
1/7/2020 7:00 AM 0.00 0.0 M M M Snow from previous day melted away by noon.
1/8/2020 7:00 AM 0.01 M M M M Got some rain/ snow mix earlier then changed over to all snow halfway through the storm. No accmulation even on grass or elevated surfaces.
1/9/2020 7:00 AM 0.00 0.0 M M M
1/10/2020 7:00 AM 0.00 0.0 M M M
1/11/2020 7:00 AM 0.00 0.0 M M M
1/12/2020 7:00 AM 0.10 M M M M
1/13/2020 7:00 AM 0.00 0.0 M M M
1/14/2020 7:00 AM 0.00 0.0 M M M
1/15/2020 7:00 AM 0.04 M M M M
1/16/2020 7:00 AM 0.05 M M M M
1/17/2020 7:00 AM T M M M M Some flurries passed by
1/18/2020 7:00 AM 0.00 0.0 M M M
1/19/2020 7:00 AM 0.26 1.2 M 0.5 M Starts as light dry snow,@11 30am continues with 2 hour hiatus, changed over to sleet at around 5, took measurements on that time, then again just before it changes over to freezing rain and rain at around 7 pm. Precipitation as rain, ended around 9 pm.
1/20/2020 7:00 AM 0.00 0.0 M T M
1/21/2020 7:00 AM 0.00 0.0 M T M
1/22/2020 7:00 AM 0.00 0.0 M T M
1/23/2020 7:00 AM 0.00 0.0 M T M
1/24/2020 7:00 AM 0.00 0.0 M T M
1/25/2020 8:30 AM 0.12 M M M M
1/26/2020 7:00 AM 1.16 M M M M
1/27/2020 7:00 AM 0.00 0.0 M M M
1/28/2020 7:00 AM 0.00 0.0 M M M
1/29/2020 7:00 AM 0.00 0.0 M M M
1/30/2020 7:00 AM 0.00 0.0 M M M
1/31/2020 7:00 AM 0.00 0.0 M M M
2/1/2020 7:00 AM 0.03 M M M M
2/2/2020 7:00 AM 0.04 M M M M
2/3/2020 7:00 AM 0.08 T M M M Some off and on rain and snow mixture at times throughout the rain event in the afternoon, no accumulation, all snowflakes immediately melted on contact (MG note: based on above, changed 0.0" new snow depth to "T". OST 2/03/2020 9:26 AM)
2/4/2020 7:00 AM 0.02 M M M M
2/5/2020 7:00 AM 0.02 M M M M
2/6/2020 7:00 AM 0.60 M M M M
2/7/2020 8:40 AM 0.29 M M M M
2/8/2020 7:00 AM 0.10 T M T M Day starts out at around 55-60 degrees a line of heavy rain passed with winds, the the day progressed with rain showers with winds. Around 3 pm, sleet showers arrived, lasted for 15 minutes and then snow showers till around 7 pm. Trace amounts of snow covered just on decks, cars, something that can lose surface heat fast enough.
2/9/2020 7:00 AM 0.00 0.0 M M M
2/10/2020 7:00 AM 0.05 M M M M
2/11/2020 7:00 AM 0.68 M M M M Just your average miserable winter rainy day. Where's the snow?
2/12/2020 7:00 AM 0.06 M M M M
2/13/2020 7:00 AM 0.21 M M M M Another shi**y day...
2/14/2020 7:00 AM 0.21 T M T M
2/15/2020 7:00 AM 0.00 0.0 M M M
2/16/2020 7:00 AM 0.00 0.0 M M M
2/17/2020 7:00 AM 0.00 0.0 M M M
2/18/2020 7:00 AM 0.00 0.0 M M M
2/19/2020 7:00 AM 0.00 0.0 M M M
2/20/2020 7:00 AM 0.00 0.0 M M M
2/21/2020 7:00 AM 0.00 0.0 M M M
2/22/2020 7:00 AM 0.00 0.0 M M M
2/23/2020 7:00 AM 0.00 0.0 M M M
2/24/2020 7:00 AM 0.00 0.0 M M M
2/25/2020 7:00 AM 0.00 0.0 M M M
2/26/2020 7:00 AM 0.22 M M M M
2/27/2020 7:00 AM 0.15 M M M M
2/28/2020 7:00 AM 0.00 0.0 M M M
2/29/2020 7:00 AM T T M M M Few snowflakes sighted lasting about few minutes, around 1 pm
3/1/2020 7:00 AM T T M M M Few flurries passed by during afternoon hours
3/2/2020 7:00 AM 0.00 0.0 M M M
3/3/2020 7:00 AM T M M M M
3/4/2020 7:00 AM 0.48 M M M M
3/5/2020 7:00 AM 0.00 0.0 M M M
3/6/2020 7:00 AM 0.00 0.0 M M M
3/7/2020 7:00 AM 0.28 M M M M
3/8/2020 7:00 AM 0.00 0.0 M M M
3/9/2020 7:00 AM 0.00 0.0 M M M
3/10/2020 7:00 AM 0.00 0.0 M M M
3/11/2020 7:00 AM T M M M M Took measurements too late in the day, that the water in gauge has all evaporated away but there's evidence of rain last night. So since I couldn't measure it so therefore I put down trace.
3/12/2020 7:00 AM 0.00 0.0 M M M
3/13/2020 8:10 AM 0.41 M M M M
3/14/2020 7:00 AM 0.03 M M M M
3/15/2020 7:00 AM 0.01 M M M M
3/16/2020 7:00 AM 0.00 0.0 M M M
3/17/2020 7:00 AM 0.04 M M M M
3/18/2020 7:00 AM 0.12 M M M M
3/19/2020 7:00 AM 1.07 M M M M
3/20/2020 7:00 AM 0.01 M M M M Heavy fog and moisture settlement might makes up this measurement. Not sure if we had a shower overnight.
3/21/2020 7:00 AM T M M M M
3/22/2020 7:00 AM 0.00 0.0 M M M
3/23/2020 8:00 AM 0.04 T M T M A bit of sleet mixed in rain at around 7 am
3/24/2020 7:00 AM 1.06 M M M M
3/25/2020 7:00 AM 0.00 0.0 M M M
3/26/2020 7:00 AM 0.03 M M M M
3/27/2020 7:00 AM T M M M M
3/28/2020 7:00 AM 0.00 0.0 M M M
3/29/2020 7:00 AM 0.71 M M M M
3/30/2020 7:00 AM 0.07 M M M M
3/31/2020 7:00 AM 0.06 M M M M
4/1/2020 7:00 AM T M M M M
4/2/2020 7:00 AM 0.00 0.0 M M M
4/3/2020 7:00 AM T M M M M
4/4/2020 7:00 AM T M M M M
4/5/2020 7:00 AM 0.02 M M M M
4/6/2020 7:00 AM 0.08 M M M M
4/7/2020 7:00 AM 0.00 0.0 M M M
4/8/2020 7:00 AM 0.62 M M M M
4/9/2020 7:00 AM T M M M M
4/10/2020 7:00 AM 0.11 M M M M Brief downpour and lightings at around 1 pm
4/11/2020 7:00 AM T T M T M On and off rain and snow showers mainly in early afternoon hours. The snow that fell along with rain was graupel. Strong NW winds all day. Temps was in the mid 40's
4/12/2020 7:00 AM 0.00 0.0 M M M
4/13/2020 7:00 AM 0.89 M M M M
4/14/2020 7:00 AM 0.94 M M M M Moderat to heavy rains all morning until around 4 pm
4/15/2020 7:00 AM 0.02 M M M M
4/16/2020 7:00 AM 0.00 0.0 M M M
4/17/2020 7:00 AM 0.00 0.0 M M M
4/18/2020 8:30 AM 0.10 M M M M
4/19/2020 7:00 AM 0.02 M M M M
4/22/2020 7:00 AM 0.27 M M M M Line of thunderstorms with pea sized hail passed by here around 2 pm, windy at onset and thereafter.
4/23/2020 7:30 AM T T M M M A bit of Sleet falling at observation time
4/24/2020 7:00 AM 0.67 T M M M Yesterday morning, we had very light wintry mix that fell since daybreak till around 9-9:30 am. Ice and snow just melted on contact on ground. No accumulation. Later on, overnight hours, rain fell as system moves northward.
4/25/2020 7:00 AM 0.29 M M M M
4/26/2020 7:00 AM 0.02 M M M M
4/29/2020 7:00 AM T M M M M
4/30/2020 7:00 AM T M M M M
5/1/2020 7:00 AM 0.53 M M M M
5/2/2020 7:00 AM 0.02 M M M M
5/3/2020 7:00 AM 0.07 M M M M
5/4/2020 7:00 AM 0.00 0.0 M M M
5/5/2020 7:00 AM 0.00 0.0 M M M
5/6/2020 7:00 AM 0.00 0.0 M M M
5/7/2020 7:00 AM 0.10 M M M M
5/8/2020 7:00 AM 0.00 0.0 M M M
5/9/2020 7:00 AM 0.58 M M M M Colder than normal. Can't say if we had trace of snow, it was supposed to occur at midnight. No traces of snow accumulation at observation time. But historic radar indicated a snow lobe reached here, right on the line. 32.2°F at observation time and some thin film of ice on standing water. No frost.
5/10/2020 7:00 AM T T M M M A few flurries passed over, around 4-6 pm. It lasted for a few minutes from time to time.
5/11/2020 7:00 AM 0.00 0.0 M M M
5/12/2020 7:00 AM 0.11 M M M M
5/13/2020 7:00 AM 0.00 0.0 M M M
5/14/2020 7:00 AM 0.00 0.0 M M M
5/15/2020 7:00 AM 0.02 M M M M
5/16/2020 7:00 AM T M M M M
5/17/2020 7:00 AM 0.00 0.0 M M M
5/18/2020 7:00 AM T M M M M
5/19/2020 7:00 AM 0.00 0.0 M M M
5/20/2020 7:00 AM 0.00 0.0 M M M
5/21/2020 7:00 AM 0.00 0.0 M M M
5/22/2020 7:00 AM 0.00 0.0 M M M
5/23/2020 7:00 AM 0.28 M M M M
5/24/2020 7:00 AM 0.22 M M M M
5/25/2020 7:00 AM T M M M M
5/26/2020 7:00 AM 0.00 0.0 M M M
5/27/2020 7:00 AM 0.00 0.0 M M M
5/29/2020 7:00 AM 0.01 M M M M
5/30/2020 5:00 AM 0.02 M M M M
5/31/2020 7:00 AM 0.00 0.0 M M M
6/1/2020 7:00 AM 0.00 0.0 M M M
6/2/2020 7:00 AM 0.00 0.0 M M M
6/3/2020 7:00 AM T M M M M
6/4/2020 7:00 AM 0.52 M M M M Main event of the precipation was a bow echo thunderstorms. Windy but not destructive. A few small branches fell down that's all
6/5/2020 7:00 AM 0.48 M M M M A line of thunderstorm passed by around midnight, northern end of a derecho that seems to pound phila and South Jersey hard on radar.
6/6/2020 7:00 AM 1.04 M M M M Afternoon clusters of thunderstorms passed over
6/7/2020 7:00 AM 0.00 0.0 M M M
6/8/2020 7:00 AM 0.00 0.0 M M M
6/9/2020 7:00 AM 0.00 0.0 M M M
6/10/2020 7:00 AM 0.00 0.0 M M M
6/11/2020 7:00 AM T M M M M
6/12/2020 7:00 AM 0.35 M M M M
6/13/2020 7:00 AM 0.00 0.0 M M M
6/14/2020 7:00 AM 0.00 0.0 M M M
6/15/2020 7:00 AM 0.00 0.0 M M M
6/16/2020 7:00 AM 0.00 0.0 M M M
6/17/2020 7:00 AM 0.00 0.0 M M M
6/18/2020 7:00 AM 0.00 0.0 M M M
6/19/2020 7:00 AM 0.05 M M M M
6/20/2020 7:00 AM 0.00 0.0 M M M
6/21/2020 7:00 AM T M M M M
6/22/2020 7:00 AM 0.00 0.0 M M M
6/23/2020 7:00 AM 0.00 0.0 M M M
6/24/2020 7:00 AM 0.00 0.0 M M M
6/25/2020 7:00 AM 0.00 0.0 M M M
6/26/2020 7:00 AM 0.00 0.0 M M M
6/27/2020 7:00 AM 0.00 0.0 M M M
6/28/2020 7:00 AM 1.00 M M M M Heavy rain around 3-4 pm provided much needed water relief for the vegetation. Perfect on the mark 1 inch!! Soil drank up moisture so fast so puddles, runoff flooding was minimal and short lived.
6/29/2020 6:00 AM 0.01 M M M M
6/30/2020 7:00 AM 0.00 0.0 M M M
7/1/2020 7:00 AM 0.00 0.0 M M M
7/2/2020 7:00 AM 0.19 M M M M
7/3/2020 7:00 AM T M M M M
7/4/2020 7:00 AM 0.76 M M M M Large cell passed over, giving us needed water for garden and trees
7/5/2020 7:00 AM 0.00 0.0 M M M
7/6/2020 7:00 AM 0.00 0.0 M M M
7/7/2020 7:00 AM T M M M M
7/8/2020 7:00 AM T M M M M
7/9/2020 7:00 AM 0.03 M M M M
7/10/2020 7:00 AM 0.00 0.0 M M M
7/11/2020 7:00 AM 2.36 M M M M A typical Tropical storm, good mild drought cancelling rain ad fallen. Not much of a wind event. It was more like a strong breeze(10-20 mph)
7/12/2020 7:00 AM T M M M M
7/13/2020 7:00 AM 0.21 M M M M
7/14/2020 7:00 AM 0.00 0.0 M M M
7/15/2020 7:00 AM 0.00 0.0 M M M
7/16/2020 7:00 AM 0.00 0.0 M M M
7/17/2020 7:00 AM 0.00 0.0 M M M
7/18/2020 7:00 AM 0.01 M M M M
7/19/2020 7:00 AM 0.00 0.0 M M M
7/20/2020 7:00 AM 0.00 0.0 M M M
7/21/2020 7:00 AM 0.00 0.0 M M M
7/22/2020 7:00 AM 0.01 M M M M
7/23/2020 7:00 AM 0.24 M M M M A huge cell passed by just few miles north and largely missed out the bulk of precipation. We got gale force winds. Made a mess on my yard. No large limbs down, though.
7/24/2020 7:00 AM 0.69 M M M M
7/25/2020 7:00 AM 0.06 M M M M
7/26/2020 7:00 AM 0.00 0.0 M M M
7/27/2020 7:00 AM T M M M M
7/28/2020 7:00 AM 0.00 0.0 M M M
7/29/2020 7:00 AM 0.00 0.0 M M M
7/30/2020 7:00 AM 0.00 0.0 M M M
7/31/2020 7:00 AM 0.35 M M M M
8/1/2020 7:00 AM 0.02 M M M M
8/2/2020 7:00 AM 0.06 M M M M
8/3/2020 7:00 AM T M M M M
8/4/2020 7:00 AM 0.19 M M M M
8/5/2020 7:00 AM 1.06 M M M M Winds are in 30-50 mph range, took down numerous small branches, some downed trees in neighborhood. Not much of a rain event though.
8/6/2020 7:00 AM 0.01 0.0 M M M
8/7/2020 7:00 AM 0.17 M M M M
8/8/2020 7:00 AM 0.51 M M M M
8/9/2020 7:00 AM T 0.0 M M M
8/10/2020 7:00 AM 0.00 0.0 M M M
8/11/2020 7:00 AM 0.00 0.0 M M M
8/12/2020 7:00 AM T M M M M
8/13/2020 7:00 AM 0.01 M M M M
8/14/2020 7:00 AM 1.47 M M M M Heavy downpour around 7 am to 9 am.
8/15/2020 7:00 AM 0.00 0.0 M M M
8/18/2020 7:00 AM 0.20 M M M M Brief downpour around 19:45.
8/19/2020 7:00 AM 0.00 0.0 M M M
8/20/2020 7:00 AM 0.51 M M M M
8/21/2020 7:00 AM 0.00 0.0 M M M
8/22/2020 7:00 AM 0.00 0.0 M M M
8/23/2020 7:00 AM 0.00 0.0 M M M
8/24/2020 7:00 AM T M M M M
8/25/2020 7:00 AM 0.00 0.0 M M M
8/26/2020 7:00 AM 0.40 M M M M An isolated thunderstorm rolled by last evening
8/27/2020 7:00 AM 0.01 M M M M
8/28/2020 7:00 AM 0.18 M M M M Short thunderstorms passed by around 10 pm, a flashing show!
8/29/2020 7:00 AM 0.16 M M M M
8/30/2020 7:00 AM 0.03 M M M M
8/31/2020 7:00 AM 0.00 0.0 M M M
9/1/2020 7:00 AM 0.02 M M M M
9/2/2020 7:00 AM T M M M M
9/3/2020 7:00 AM 0.02 M M M M
9/4/2020 7:00 AM 2.39 M M M M A big thunderstorm cell passed over dumping continuous 2"+ rainfall rate per hour
9/5/2020 7:00 AM 0.00 M M M M
9/7/2020 7:00 AM 0.00 M M M M
9/8/2020 7:00 AM 0.00 0.0 M M M
9/9/2020 7:00 AM 0.00 M M M M
9/10/2020 7:30 AM 0.57 M M M M It was pouring down as I took measurement
9/11/2020 7:00 AM 0.34 M M M M Didn't get much as forecast had said. Such an disappointment. Took a day off for nothing!
9/12/2020 7:00 AM 0.01 0.0 M M M
9/13/2020 7:00 AM 0.00 0.0 M M M
9/14/2020 7:00 AM 0.00 M M M M
9/15/2020 7:00 AM 0.00 M M M M
9/16/2020 7:00 AM 0.00 M M M M
9/17/2020 7:00 AM 0.00 0.0 M M M
9/18/2020 7:00 AM T M M M M
9/19/2020 7:00 AM 0.00 0.0 M M M
9/20/2020 7:00 AM 0.00 M M M M
9/21/2020 7:00 AM 0.00 0.0 M M M
9/22/2020 7:00 AM 0.00 0.0 M M M
9/23/2020 7:00 AM 0.00 0.0 M M M
9/24/2020 7:00 AM 0.00 0.0 M M M
9/25/2020 7:00 AM 0.00 0.0 M M M Dry ground, good dew- however dense fog touched down this am, visibility from 1/4 mile low as 1/10 of a mile around Princeton.
9/26/2020 7:00 AM 0.01 M M M M
9/27/2020 7:00 AM 0.00 0.0 M M M
9/28/2020 7:00 AM 0.04 M M M M Pathetic rain! Dry, dry!
9/29/2020 7:00 AM 0.00 0.0 M M M
9/30/2020 7:00 AM 2.20 M M M M Slow moving Cold front dumped a decent rain here



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
12/21/2019 12/26/2019 7:00 AM 6 0.00 M M
4/27/2020 4/28/2020 7:00 AM 2 0.16 M M
8/16/2020 8/17/2020 7:00 AM 2 0.35 M M



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
4/21/2020 2:15 PM NA NA 1/4" Pea Size Hard 2 1min no damage Continuous False Same time as rain 10-20