Station Overview Station Location
Station Number NJ-SM-1 Latitude 40.472647
Station Name Hillsborough Twp 4.7 ESE Longitude -74.590393
County Somerset Elevation (ft) 98



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 4.05 4.62 31 4.62 31 0.00 0 0 13 3 4.1 1 2
Nov 11 3.71 3.25 30 3.25 30 0.00 0 0 8 1 0.0 0 1
Dec 11 3.89 4.47 31 4.47 31 0.00 0 0 7 3 0.0 0 0
Jan 12 3.52 3.15 31 3.15 31 0.00 0 0 12 1 3.1 3 3
Feb 12 2.62 0.92 29 0.92 29 0.00 0 0 10 4 2.4 3 3
March 12 3.92 2.21 31 2.21 31 0.00 0 0 13 3 0.0 0 0
April 12 4.01 3.01 30 3.01 30 0.00 0 0 7 3 0.0 0 0
May 12 4.22 4.12 31 4.12 31 0.00 0 0 17 2 0.0 0 0
June 12 4.19 3.79 30 3.79 30 0.00 0 0 9 2 0.0 0 0
July 12 5.09 3.53 31 3.53 31 0.00 0 0 10 2 0.0 0 0
Aug 12 3.93 6.54 30 6.54 30 0.00 0 0 9 3 0.0 0 0
Sept 12 4.32 2.68 30 2.68 30 0.00 0 0 10 1 0.0 0 0
Water Year Totals: 47.47" 42.29" 365 days 42.29" 365 0.00" 0 days 0 125 days 28 days 9.6" 7 days 9 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 0.22
10/2/2011 0.03
10/3/2011 T
10/4/2011 0.00
10/5/2011 0.02
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 0.36
10/14/2011 0.40
10/15/2011 0.09
10/16/2011 0.00
10/17/2011 T
10/18/2011 0.01
10/19/2011 0.13
10/20/2011 1.04
10/21/2011 0.00
10/22/2011 0.00
10/23/2011 0.00
10/24/2011 0.00
10/25/2011 0.02
10/26/2011 0.00
10/27/2011 0.07
10/28/2011 0.44
10/29/2011 T
10/30/2011 1.79
10/31/2011 0.00
11/1/2011 0.00
11/2/2011 0.00
11/3/2011 0.00
11/4/2011 0.00
11/5/2011 T
11/6/2011 0.00
11/7/2011 0.00
11/8/2011 0.00
11/9/2011 0.00
11/10/2011 0.00
11/11/2011 0.02
11/12/2011 0.00
11/13/2011 0.00
11/14/2011 0.00
11/15/2011 0.00
11/16/2011 0.05
11/17/2011 0.72
11/18/2011 0.00
11/19/2011 0.00
11/20/2011 0.00
11/21/2011 0.14
11/22/2011 0.11
11/23/2011 1.81
11/24/2011 0.03
11/25/2011 0.00
11/26/2011 0.00
11/27/2011 0.00
11/28/2011 0.00
11/29/2011 0.00
11/30/2011 0.37
12/1/2011 0.00
12/2/2011 0.00
12/3/2011 0.00
12/4/2011 0.00
12/5/2011 0.00
12/6/2011 0.02
12/7/2011 0.21
12/8/2011 2.33
12/9/2011 0.00
12/10/2011 0.00
12/11/2011 0.00
12/12/2011 0.00
12/13/2011 0.00
12/14/2011 0.00
12/15/2011 0.00
12/16/2011 T
12/17/2011 0.00
12/18/2011 0.00
12/19/2011 0.00
12/20/2011 T
12/21/2011 0.08
12/22/2011 0.25
12/23/2011 1.03
12/24/2011 0.00
12/25/2011 0.00
12/26/2011 0.00
12/27/2011 0.00
12/28/2011 0.55
12/29/2011 T
12/30/2011 0.00
12/31/2011 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2012 0.00
1/2/2012 0.05
1/3/2012 0.00
1/4/2012 0.00
1/5/2012 0.00
1/6/2012 0.00
1/7/2012 0.00
1/8/2012 0.00
1/9/2012 0.00
1/10/2012 0.00
1/11/2012 0.00
1/12/2012 1.61
1/13/2012 0.14
1/14/2012 0.01
1/15/2012 T
1/16/2012 0.00
1/17/2012 0.07
1/18/2012 0.22
1/19/2012 0.00
1/20/2012 0.00
1/21/2012 0.09
1/22/2012 0.10
1/23/2012 0.00
1/24/2012 0.29
1/25/2012 0.00
1/26/2012 0.03
1/27/2012 0.25
1/28/2012 0.29
1/29/2012 0.00
1/30/2012 0.00
1/31/2012 0.00
2/1/2012 0.05
2/2/2012 0.01
2/3/2012 T
2/4/2012 0.00
2/5/2012 0.00
2/6/2012 0.00
2/7/2012 0.00
2/8/2012 0.00
2/9/2012 0.06
2/10/2012 0.00
2/11/2012 0.09
2/12/2012 0.07
2/13/2012 T
2/14/2012 0.00
2/15/2012 T
2/16/2012 0.01
2/17/2012 0.14
2/18/2012 0.00
2/19/2012 0.03
2/20/2012 0.00
2/21/2012 0.00
2/22/2012 0.00
2/23/2012 0.00
2/24/2012 0.22
2/25/2012 0.24
2/26/2012 T
2/27/2012 0.00
2/28/2012 0.00
2/29/2012 0.00
3/1/2012 0.76
3/2/2012 0.01
3/3/2012 0.30
3/4/2012 0.05
3/5/2012 0.00
3/6/2012 0.00
3/7/2012 0.00
3/8/2012 0.00
3/9/2012 0.08
3/10/2012 0.00
3/11/2012 0.00
3/12/2012 0.00
3/13/2012 0.11
3/14/2012 0.02
3/15/2012 0.00
3/16/2012 0.02
3/17/2012 T
3/18/2012 0.00
3/19/2012 0.00
3/20/2012 T
3/21/2012 0.01
3/22/2012 0.02
3/23/2012 T
3/24/2012 0.00
3/25/2012 0.16
3/26/2012 0.00
3/27/2012 0.00
3/28/2012 0.00
3/29/2012 0.02
3/30/2012 0.00
3/31/2012 0.65
Day of YearDaily PrcpMultiday Prcp
4/1/2012 0.04
4/2/2012 0.36
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 0.00
4/10/2012 0.00
4/11/2012 0.00
4/12/2012 0.00
4/13/2012 T
4/14/2012 0.00
4/15/2012 T
4/16/2012 0.00
4/17/2012 0.00
4/18/2012 0.00
4/19/2012 0.07
4/20/2012 0.00
4/21/2012 0.00
4/22/2012 0.09
4/23/2012 2.42
4/24/2012 0.02
4/25/2012 T
4/26/2012 0.00
4/27/2012 0.01
4/28/2012 0.00
4/29/2012 0.00
4/30/2012 0.00
5/1/2012 0.34
5/2/2012 0.08
5/3/2012 0.28
5/4/2012 0.02
5/5/2012 0.00
5/6/2012 0.01
5/7/2012 0.00
5/8/2012 T
5/9/2012 0.26
5/10/2012 0.28
5/11/2012 0.00
5/12/2012 0.00
5/13/2012 0.00
5/14/2012 0.00
5/15/2012 0.29
5/16/2012 0.77
5/17/2012 0.00
5/18/2012 0.00
5/19/2012 0.00
5/20/2012 0.00
5/21/2012 0.42
5/22/2012 0.52
5/23/2012 0.05
5/24/2012 0.12
5/25/2012 0.09
5/26/2012 0.00
5/27/2012 0.20
5/28/2012 0.02
5/29/2012 0.00
5/30/2012 0.37
5/31/2012 T
6/1/2012 0.00
6/2/2012 0.74
6/3/2012 0.00
6/4/2012 0.50
6/5/2012 0.16
6/6/2012 0.00
6/7/2012 0.00
6/8/2012 T
6/9/2012 0.00
6/10/2012 0.06
6/11/2012 0.00
6/12/2012 0.00
6/13/2012 1.39
6/14/2012 0.00
6/15/2012 0.00
6/16/2012 0.00
6/17/2012 0.00
6/18/2012 0.00
6/19/2012 0.00
6/20/2012 0.00
6/21/2012 0.00
6/22/2012 0.00
6/23/2012 0.23
6/24/2012 0.00
6/25/2012 0.05
6/26/2012 0.63
6/27/2012 0.00
6/28/2012 0.00
6/29/2012 0.03
6/30/2012 T
Day of YearDaily PrcpMultiday Prcp
7/1/2012 0.00
7/2/2012 0.00
7/3/2012 0.00
7/4/2012 0.07
7/5/2012 0.01
7/6/2012 0.00
7/7/2012 0.00
7/8/2012 0.02
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 T
7/15/2012 0.00
7/16/2012 0.67
7/17/2012 0.00
7/18/2012 0.00
7/19/2012 0.65
7/20/2012 0.80
7/21/2012 0.52
7/22/2012 0.00
7/23/2012 0.00
7/24/2012 0.03
7/25/2012 0.00
7/26/2012 0.00
7/27/2012 0.47
7/28/2012 0.00
7/29/2012 0.29
7/30/2012 T
7/31/2012 0.00
8/1/2012 0.00
8/2/2012 2.13
8/3/2012 0.00
8/4/2012 0.00
8/5/2012 T
8/6/2012 0.40
8/7/2012 0.00
8/8/2012 0.00
8/9/2012 0.00
8/10/2012 T
8/11/2012 0.76
8/12/2012 0.45
8/13/2012 0.00
8/14/2012 0.00
8/15/2012 0.17
8/16/2012 0.01
8/17/2012 M
8/18/2012 0.48
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 T
8/27/2012 0.00
8/28/2012 2.09
8/29/2012 0.05
8/30/2012 0.00
8/31/2012 0.00
9/1/2012 0.00
9/2/2012 0.00
9/3/2012 0.03
9/4/2012 0.04
9/5/2012 0.16
9/6/2012 0.00
9/7/2012 0.00
9/8/2012 0.00
9/9/2012 0.29
9/10/2012 0.00
9/11/2012 0.00
9/12/2012 0.00
9/13/2012 0.00
9/14/2012 0.00
9/15/2012 0.00
9/16/2012 0.00
9/17/2012 0.00
9/18/2012 0.16
9/19/2012 1.16
9/20/2012 0.00
9/21/2012 0.00
9/22/2012 0.00
9/23/2012 0.45
9/24/2012 0.00
9/25/2012 0.00
9/26/2012 T
9/27/2012 0.03
9/28/2012 0.35
9/29/2012 0.01
9/30/2012 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2011 7:00 AM 0.22 M M M M Afternoon light shower (0.01), light rain late evening into predawn (0.21")
10/2/2011 7:00 AM 0.03 M M M M A few late afternoon and evening light showers.
10/3/2011 7:00 AM T M M M M Light sprinkle at 2:30PM. You had to be outside to know it.
10/4/2011 7:00 AM 0.00 0.0 M M M
10/5/2011 7:00 AM 0.02 M M M M Morning shower.
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 4th consecutive day without a cloud.
10/10/2011 7:00 AM 0.00 0.0 M M M 5th consecutive cloudless day.
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 0.36 M M M M Light morning showers. Evening showers include a heavier period between 9 and 10PM
10/14/2011 7:00 AM 0.40 M M M M
10/15/2011 7:00 AM 0.09 M M M M
10/16/2011 7:00 AM 0.00 0.0 M M M
10/17/2011 7:00 AM T M M M M Light sprinkle early evening 10/16. Drizzle at ob time today.
10/18/2011 7:00 AM 0.01 M M M M Light shower just after ob time on 10/17.
10/19/2011 7:00 AM 0.13 M M M M Light to moderate rain began shortly after 5AM and continued through 7AM ob time.
10/20/2011 7:00 AM 1.04 M M M M Rain and drizzle throughout 10/19, ending shortly after midnight. 1.17" for event.
10/21/2011 7:00 AM 0.00 0.0 M M M
10/22/2011 7:00 AM 0.00 0.0 M M M
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 0.02 0.0 M M M
10/26/2011 7:00 AM 0.00 0.0 M M M
10/27/2011 7:00 AM 0.07 M M M M Overnight light rain.
10/28/2011 7:00 AM 0.44 M M M M
10/29/2011 7:00 AM T 0.0 M 0.0 M Light rain began falling shortly before ob time.
10/30/2011 7:00 AM 1.79 4.1 1.48 4.0 1.02
10/31/2011 7:00 AM 0.00 0.0 0.00 2.0 0.69
11/1/2011 7:00 AM 0.00 0.0 M 1.0 M About 75% of the yard and nearby fields remain snow covered.
11/2/2011 7:00 AM 0.00 0.0 M T M Shaded areas of yard remain snow covered.
11/3/2011 7:00 AM 0.00 0.0 M 0.0 M Heavily shaded areas of neighborhood still have some natural snow cover.
11/4/2011 7:00 AM 0.00 0.0 M 0.0 M Just snow piles remain.
11/5/2011 7:00 AM T 0.0 M 0.0 M Brief sprinkle shortly after ob time yesterday.
11/6/2011 7:00 AM 0.00 0.0 M 0.0 M Heavy frost this morning.
11/7/2011 7:00 AM 0.00 0.0 M 0.0 M
11/8/2011 7:00 AM 0.00 0.0 M 0.0 M
11/9/2011 7:00 AM 0.00 0.0 M 0.0 M
11/10/2011 7:00 AM 0.00 0.0 M 0.0 M Nothing but a trace of rain thus far in November.
11/11/2011 7:00 AM 0.02 0.0 M 0.0 M Light late evening shower.
11/12/2011 7:00 AM 0.00 0.0 M 0.0 M
11/13/2011 7:00 AM 0.00 0.0 M 0.0 M
11/14/2011 7:00 AM 0.00 0.0 M 0.0 M
11/15/2011 7:00 AM 0.00 0.0 M 0.0 M
11/16/2011 7:00 AM 0.05 0.0 M 0.0 M Occasional light rain afternoon, evening and overnight. 0.02" on 11/15, 0.03" up through 7AM on 11/16.
11/17/2011 7:00 AM 0.72 0.0 M 0.0 M Occasional rain all day, steadier mid afternoon to mid evening. Event total 0.75".
11/18/2011 7:00 AM 0.00 0.0 M 0.0 M
11/19/2011 7:00 AM 0.00 0.0 M 0.0 M
11/20/2011 7:00 AM 0.00 0.0 M 0.0 M
11/21/2011 7:00 AM 0.14 0.0 M 0.0 M Light rain from shortly after midnight to ob time.
11/22/2011 7:00 AM 0.11 0.0 M 0.0 M Light rain ended shortly after ob time yesterday (0.01). Then there was a late afternoon sprinkle (T). Light rain resumed after midnight and continues through ob time (0.10)
11/23/2011 7:00 AM 1.81 0.0 M 0.0 M Light rain and drizzle until afternoon, then moderate rain into the evening. Some heavier bursts during the evening and predawn. Ends just before ob time. Event total 1.92"
11/24/2011 7:00 AM 0.03 0.0 M 0.0 M Occasional mid day and afternoon showers. 1.94" for event.
11/25/2011 7:00 AM 0.00 0.0 M 0.0 M
11/26/2011 7:00 AM 0.00 0.0 M 0.0 M
11/27/2011 7:00 AM 0.00 0.0 M 0.0 M
11/28/2011 7:00 AM 0.00 0.0 M 0.0 M
11/29/2011 7:00 AM 0.00 0.0 M 0.0 M
11/30/2011 7:00 AM 0.37 0.0 M 0.0 M Light to occasionally moderate afternoon and evening rain.
12/1/2011 7:00 AM 0.00 0.0 M 0.0 M
12/2/2011 7:00 AM 0.00 0.0 M 0.0 M
12/3/2011 7:00 AM 0.00 0.0 M 0.0 M
12/4/2011 7:00 AM 0.00 0.0 M 0.0 M
12/5/2011 7:00 AM 0.00 0.0 M 0.0 M
12/6/2011 7:00 AM 0.02 0.0 M 0.0 M
12/7/2011 7:00 AM 0.21 0.0 M 0.0 M
12/8/2011 7:00 AM 2.33 0.0 M 0.0 M 2.54" for event.
12/9/2011 7:00 AM 0.00 0.0 M 0.0 M
12/10/2011 7:00 AM 0.00 0.0 M 0.0 M
12/11/2011 7:00 AM 0.00 0.0 M 0.0 M Heavy frost. Low of 18; first teen reading of the season.
12/12/2011 7:00 AM 0.00 0.0 M 0.0 M Another heavy frost. Low for the season of 17, beating yesterday's 18.
12/13/2011 7:00 AM 0.00 0.0 M 0.0 M Another heavy frost.
12/14/2011 7:00 AM 0.00 0.0 M 0.0 M
12/15/2011 7:00 AM 0.00 0.0 M 0.0 M
12/16/2011 7:00 AM T 0.0 M 0.0 M Brief late afternoon shower. 39 mph gust at 5AM.
12/17/2011 7:00 AM 0.00 0.0 M 0.0 M
12/18/2011 7:00 AM 0.00 0.0 M 0.0 M
12/19/2011 7:00 AM 0.00 0.0 M 0.0 M
12/20/2011 7:00 AM T 0.0 M 0.0 M late afternoon sprinkle
12/21/2011 7:00 AM 0.08 0.0 M 0.0 M Light rain late afternoon to mid evening.
12/22/2011 7:00 AM 0.25 0.0 M 0.0 M Light showers mid afternoon till mid evening deposited 0.05" of the day's total. 10 minute squall dropped 0.20" between 10:10 and 10:20 PM. Wind gusted to 36 mph during the squall and the temperature dropped from an unseasonably mild 60 to 55.
12/23/2011 7:00 AM 1.03 0.0 M 0.0 M Moderate rain from late evening until the predawn hour.
12/24/2011 7:00 AM 0.00 0.0 M 0.0 M
12/25/2011 7:00 AM 0.00 0.0 M 0.0 M
12/26/2011 7:00 AM 0.00 0.0 M 0.0 M
12/27/2011 7:00 AM 0.00 0.0 M 0.0 M
12/28/2011 7:00 AM 0.55 0.0 M 0.0 M Light rain in the afternoon, turning to moderate during the early to mid evening. 28 mph wind gust and barometer down to 29.32" during the evening.
12/29/2011 7:00 AM T T T 0.0 M Mid afternoon light flurry. 38 mph gust late in the morning.
12/30/2011 7:00 AM 0.00 0.0 M 0.0 M
12/31/2011 7:00 AM 0.00 0.0 M 0.0 M
1/1/2012 7:00 AM 0.00 0.0 M 0.0 M
1/2/2012 7:00 AM 0.05 0.0 M 0.0 M Showers late afternoon till mid evening.
1/3/2012 7:00 AM 0.00 0.0 M 0.0 M
1/4/2012 7:00 AM 0.00 0.0 M 0.0 M
1/5/2012 7:00 AM 0.00 0.0 M 0.0 M
1/6/2012 7:00 AM 0.00 0.0 M 0.0 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 64 max 1/7 afternoon after a morning low of 24.
1/9/2012 7:00 AM 0.00 0.0 M 0.0 M
1/10/2012 7:00 AM 0.00 0.0 M 0.0 M
1/11/2012 7:00 AM 0.00 0.0 M 0.0 M
1/12/2012 7:30 AM 1.61 0.0 M 0.0 M Thunderstorm at 6:45AM. Max wind gust 32 mph. Moderate to heavy rain at times from late evening to just before ob time.
1/13/2012 7:00 AM 0.14 0.0 M 0.0 M Very light rain after ob time on 1/12, post midnight shower, quick squall with rain and 37 mph gust at 6AM.
1/14/2012 7:00 AM 0.01 T M 0.0 M Snow squall around 9AM. 39 mph gust. Light flurries later in the morning into the afternoon.
1/15/2012 7:00 AM T T M 0.0 M Light flurries several times from late morning into evening.
1/16/2012 7:00 AM 0.00 0.0 M 0.0 M 8 degree minimum this morning. Coldest of the season, surpassing a few previous mornings that got down to 10.
1/17/2012 7:00 AM 0.07 0.1 M T M Sleet and rain mid evening to early morning. Still some sleet remaining on cold surfaces and in roof eves this morning.
1/18/2012 7:00 AM 0.22 0.0 M 0.0 M Occasional light rain morning and afternoon.
1/19/2012 7:00 AM 0.00 0.0 M 0.0 M
1/20/2012 7:00 AM 0.00 0.0 M 0.0 M
1/21/2012 7:00 AM 0.09 1.5 M 2.0 M Light snow night and continuing at ob time.
1/22/2012 7:00 AM 0.10 1.5 M 2.0 M Light snow tapered off to a bit of sleet and some freezing drizzle, ending by late morning. Max tmp 28 deg.
1/23/2012 7:00 AM 0.00 0.0 M 1.0 M
1/24/2012 7:00 AM 0.29 0.0 M 0.0 M PM light rain, briefly moderate early evening.
1/25/2012 7:00 AM 0.00 0.0 M 0.0 M
1/26/2012 7:00 AM 0.03 T M T M Light sleet and snow over night. A dusting.
1/27/2012 7:00 AM 0.25 0.0 M 0.0 M Light rain afternoon, evening and overnight.
1/28/2012 7:00 AM 0.29 0.0 M 0.0 M ongoing light rain that occasionally produced some brief downpours during the morning.
1/29/2012 7:00 AM 0.00 0.0 M 0.0 M
1/30/2012 7:00 AM 0.00 0.0 M 0.0 M
1/31/2012 7:00 AM 0.00 0.0 M 0.0 M
2/1/2012 7:00 AM 0.05 0.0 M 0.0 M Steady light rain began at 6AM, continuing through ob time.
2/2/2012 7:00 AM 0.01 0.0 M 0.0 M Light rain ended shortly after observation time yesterday.
2/3/2012 7:00 AM T 0.0 M 0.0 M Late afternoon sprinkle
2/4/2012 7:00 AM 0.00 0.0 M 0.0 M
2/5/2012 7:00 AM 0.00 0.0 M 0.0 M
2/6/2012 7:00 AM 0.00 0.0 M 0.0 M
2/7/2012 7:00 AM 0.00 0.0 M 0.0 M
2/8/2012 7:00 AM 0.00 0.0 M 0.0 M
2/9/2012 7:00 AM 0.06 0.6 M 0.5 M Light snow from 1:30 PM to midnight. Main accumulation on grassy surfaces and trees. Roofs and some shaded pavement began being covered at nightfall by which time half of the snow had accumulated.
2/10/2012 7:00 AM 0.00 0.0 M T M Traces of snow cover in shady areas after a 44 degree maximum yesterday and 23 deg minimum this morning.
2/11/2012 7:00 AM 0.09 0.8 M 1.0 M Flurries off and on from mid evening until after midnight. Steadier light snow began between 1-2AM and continues through observation time. Temperature at ob time is 32. Snow sticking to everything except paved/concrete surfaces (colder portions of these surfaces are lightly covered). Snowfall measurement made on snowboard. Too shallow for a core to be taken, thus precipitation ob taken by melting snow in 4" gauge.
2/12/2012 7:00 AM 0.07 1.0 M 0.5 M Morning snow ended with an event total of 1.1" (0.8" in yesterday's report and 0.3" in today's). Water equivalent was 0.12". A localized squall deposited another 0.7" from early to mid evening, with a water equivalent of 0.04". Natural ground is 90% covered this morning, with most paved surfaces and roofs exposed to the overnight strong winds snow free.
2/13/2012 7:00 AM T T M T M Brief evening squall. Shady areas remain lightly snow covered; the snow coming from the Saturday evening (2/11) squall reported for CoCoRaHS on 2/12.
2/14/2012 7:00 AM 0.00 0.0 M T M Light cover in very shady locations...about 1% of the yard.
2/15/2012 7:00 AM T 0.0 M 0.0 M Brief predawn shower.
2/16/2012 7:00 AM 0.01 0.0 M 0.0 M Some light AM showers.
2/17/2012 7:00 AM 0.14 0.0 M 0.0 M Light rain during much of the PM hours.
2/18/2012 7:00 AM 0.00 0.0 M 0.0 M
2/19/2012 7:00 AM 0.03 0.0 M 0.0 M Early evening shower.
2/20/2012 7:00 AM 0.00 0.0 M 0.0 M
2/21/2012 7:00 AM 0.00 0.0 M 0.0 M
2/22/2012 7:00 AM 0.00 0.0 M 0.0 M
2/23/2012 7:00 AM 0.00 0.0 M 0.0 M
2/24/2012 7:00 AM 0.22 0.0 M 0.0 M Light rain overnight. Tmp near 40.
2/25/2012 7:00 AM 0.24 0.0 M 0.0 M Light rain off and on during the day into early evening. Continuation of rain earlier on 2/24 (see yesterday's obs)
2/26/2012 7:00 AM T T M 0.0 M Occasional flurries late morning into early evening. No accumulation.
2/27/2012 7:00 AM 0.00 0.0 M 0.0 M
2/28/2012 7:00 AM 0.00 0.0 M 0.0 M
2/29/2012 7:00 AM 0.00 0.0 M 0.0 M
3/1/2012 7:00 AM 0.76 0.0 M 0.0 M Light to occasionally moderate rain morning 2/29 through ob time on 3/1. A few intervals within this with only drizzle. 0.67" on 2/29, 0.09" to ob time on 3/1.
3/2/2012 7:00 AM 0.01 0.0 M 0.0 M Drizzle ended shortly after 3/1 observation time. Event total 0.77".
3/3/2012 7:00 AM 0.30 0.0 M 0.0 M Light rain and drizzle yesterday evening with a few downpours between 10 and 11:30 PM. Drizzle overnight and at observation time. Moderate fog at ob time too.
3/4/2012 7:00 AM 0.05 0.0 M 0.0 M Morning light rain and drizzle. Event total 0.35"
3/5/2012 7:00 AM 0.00 0.0 M 0.0 M
3/6/2012 7:00 AM 0.00 0.0 M 0.0 M
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
3/9/2012 7:00 AM 0.08 0.0 M 0.0 M Overnight showers. Peak wind gust afternoon of 3/8 was 38 mph with a high tmp of 71.
3/10/2012 7:00 AM 0.00 0.0 M 0.0 M
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 0.11 0.0 M 0.0 M Light rain in the pre-dawn hours. Continues raining lightly at ob time.
3/14/2012 7:00 AM 0.02 0.0 M 0.0 M Light rain ended shortly after 3/13 ob time.
3/15/2012 7:00 AM 0.00 0.0 M 0.0 M
3/16/2012 7:00 AM 0.02 0.0 M 0.0 M Drizzle evening and overnight
3/17/2012 7:00 AM T 0.0 M 0.0 M drizzle ends shortly after ob time on 3/16. Heavy fog (less than 1/4 mile vis) at ob time 3/17.
3/18/2012 7:00 AM 0.00 0.0 M 0.0 M Heavy morning fog on 3/17 lifted by 9AM.
3/19/2012 7:00 AM 0.00 0.0 M 0.0 M
3/20/2012 7:00 AM T 0.0 M 0.0 M Overnight drizzle. Moderate fog at time of ob.
3/21/2012 7:00 AM 0.01 0.0 M 0.0 M Overnight drizzle and light fog.
3/22/2012 7:00 AM 0.02 0.0 M 0.0 M Overnight drizzle and light fog. Still drizzling at ob time.
3/23/2012 7:00 AM T 0.0 M 0.0 M Drizzle ended shortly after 3/22 ob time. Ground fog this morning (3/23)
3/24/2012 7:00 AM 0.00 0.0 M 0.0 M
3/25/2012 7:00 AM 0.16 0.0 M 0.0 M Mid day sprinkles, late evening shower; ended with a trace of light rain that fell just after midnight.
3/26/2012 7:00 AM 0.00 0.0 M 0.0 M
3/27/2012 7:00 AM 0.00 0.0 M 0.0 M 29 deg low this morning. Wind (21 mph post midnight max gust) kept the tmp "warmer", as the dew point was in the single digits.
3/28/2012 7:00 AM 0.00 0.0 M 0.0 M
3/29/2012 7:00 AM 0.02 0.0 M 0.0 M Brief early afternoon shower.
3/30/2012 7:00 AM 0.00 0.0 M 0.0 M
3/31/2012 7:00 AM 0.65 T M 0.0 M A few bursts of rain before midnight, one of which was mixed with sleet (tmp 42 deg; it was not hail). Continued as rain throughout the early morning hours with the heaviest interval between 1 and 2AM. Drizzle at ob time.
4/1/2012 7:00 AM 0.04 0.0 M 0.0 M Morning drizzle on the 31st.
4/2/2012 7:00 AM 0.36 0.0 M M M Rain evening into the first few hours of 4/2
4/3/2012 7:00 AM 0.00 0.0 M 0.0 M
4/4/2012 7:00 AM 0.00 0.0 M 0.0 M
4/5/2012 7:00 AM 0.00 0.0 M 0.0 M
4/6/2012 7:00 AM 0.00 0.0 M 0.0 M
4/7/2012 7:00 AM 0.00 0.0 M 0.0 M
4/8/2012 7:00 AM 0.00 0.0 M 0.0 M
4/9/2012 7:00 AM 0.00 0.0 M 0.0 M
4/10/2012 7:00 AM 0.00 0.0 M 0.0 M
4/11/2012 7:00 AM 0.00 0.0 M 0.0 M
4/12/2012 7:00 AM 0.00 0.0 M 0.0 M
4/13/2012 7:00 AM T 0.0 M 0.0 M Afternoon quick passing light showers.
4/14/2012 7:00 AM 0.00 0.0 M 0.0 M
4/15/2012 7:00 AM T 0.0 M 0.0 M Sprinkle around dawn.
4/16/2012 7:00 AM 0.00 0.0 M 0.0 M
4/17/2012 7:00 AM 0.00 0.0 M 0.0 M 91 deg maximum on 4/16. First 90 of the season.
4/18/2012 7:00 AM 0.00 0.0 M 0.0 M
4/19/2012 7:00 AM 0.07 0.0 M 0.0 M Evening sprinkles, post midnight showers.
4/20/2012 7:00 AM 0.00 0.0 M 0.0 M
4/21/2012 7:00 AM 0.00 0.0 M 0.0 M
4/22/2012 7:00 AM 0.09 0.0 M 0.0 M Brief 10:15-10:20 squall with 30 mph gust. Followed by a half hour of light rain.
4/23/2012 7:00 AM 2.42 0.0 M 0.0 M Light rain from the late morning into the afternoon. Intensity increased in the mid to late afternoon and tapered off in the late evening. Drizzle at ob time. Small backyard stream is running again (had been down to almost a trickle, but clearly not at the rate that would follow such a rain event during a normal to above normal precipitation period.
4/24/2012 7:00 AM 0.02 0.0 M 0.0 M Drizzle ended shortly after ob time. A few early evening sprinkles.
4/25/2012 7:00 AM T 0.0 M 0.0 M Brief early evening sprinkle.
4/26/2012 7:00 AM 0.00 0.0 M 0.0 M 32 deg minimum this morning.
4/27/2012 7:00 AM 0.01 0.0 M 0.0 M Late afternoon and late evening light showers.
4/28/2012 7:00 AM 0.00 0.0 M 0.0 M Low of 32. Second time in the past three mornings.
4/29/2012 7:00 AM 0.00 0.0 M 0.0 M 34 minimum with very light frost
4/30/2012 7:00 AM 0.00 0.0 M 0.0 M 29 deg minimum this morning with light frost.
5/1/2012 7:00 AM 0.34 M M M M Rain began pre dawn. Heaviest at time of light thunderstorm at 5:15am.
5/2/2012 7:00 AM 0.08 M M M M Rain ended about an hour after ob time yesterday. 0.42" for event.
5/3/2012 7:00 AM 0.28 M M M M
5/4/2012 7:00 AM 0.02 M M M M Late evening drizzle, few light pre-dawn showers.
5/5/2012 7:00 AM 0.00 0.0 M M M
5/6/2012 7:00 AM 0.01 M M M M Morning drizzle, late evening light shower.
5/7/2012 7:00 AM 0.00 0.0 M M M
5/8/2012 7:00 AM T M M M M Light late afternoon/early evening shower to briefly wet the ground.
5/9/2012 7:00 AM 0.26 M M M M Light rain off and on late afternoon through ob time.
5/10/2012 7:00 AM 0.28 M M M M Light rain ended in the morning of 5/9, only to resume briefly during the early evening, then again shortly after midnight until dawn.
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 0.29 M M M M Moderate shower to start what otherwise was an occasional light rain event.
5/16/2012 7:00 AM 0.77 M M M M Moderate morning rain on 5/15, afternoon variably cloudy. Evening thundershower (storm did not pass overhead). Overnight rain showers (5/16).
5/17/2012 7:00 AM 0.00 0.0 M M M
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 0.42 M M M M Moderate rain predawn, tapering off at ob time.
5/22/2012 7:00 AM 0.52 M M M M Occasional light rain throughout the day and evening of the 21st and into the predawn hours of the 22nd.
5/23/2012 7:00 AM 0.05 M M M M Brief afternoon shower (0.01"), pre-dawn shower (0.04").
5/24/2012 7:00 AM 0.12 M M M M Mid afternoon shower
5/25/2012 7:00 AM 0.09 M M M M Afternoon sprinkle. Late evening to early morning showers.
5/26/2012 7:00 AM 0.00 0.0 M M M
5/27/2012 7:00 AM 0.20 M M M M Evening shower. Pre dawn shower.
5/28/2012 7:00 AM 0.02 M M M M Very light morning shower on 27th and pre dawn shower on 28th.
5/29/2012 7:00 AM 0.00 0.0 M M M
5/30/2012 7:00 AM 0.37 M M M M Thunderstorm from 8:15-9:15PM then light rain through midnight.
5/31/2012 7:00 AM T M M M M Sprinkle shortly after observation time on 5/30
6/1/2012 7:00 AM 0.00 0.0 M M M
6/2/2012 7:00 AM 0.74 M M M M Rain mid evening to about 4AM.
6/3/2012 7:00 AM 0.00 0.0 M M M
6/4/2012 7:00 AM 0.50 M M M M Light thundershower around 2:30PM (0.01"). Moderate thunderstorm near 5:30PM brought 0.42", most falling in 15 minutes. Also 35 mph gust and tmp falling to 57 deg. Another shower ended with a rainbow around 8PM (0.05"). A 3:30-3:45 AM shower brought 0.02".
6/5/2012 7:00 AM 0.16 M M M M Moderate shower mid morn, then occasional light showers during the afternoon and evening.
6/6/2012 7:00 AM 0.00 0.0 M M M
6/7/2012 7:00 AM 0.00 0.0 M M M
6/8/2012 7:00 AM T M M M M Early evening light shower.
6/9/2012 7:00 AM 0.00 0.0 M M M
6/10/2012 7:00 AM 0.06 M M M M Early afternoon sprinkle (trace). Light nighttime shower.
6/11/2012 7:00 AM 0.00 0.0 M M M
6/12/2012 7:00 AM 0.00 0.0 M M M
6/13/2012 7:00 AM 1.39 M M M M Morning sprinkle. Steady rain from about noon through midnight (1.21") and continuing to about 3AM (0.18").
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 0.00 0.0 M M M
6/19/2012 7:00 AM 0.00 0.0 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 0.23 M M M M
6/24/2012 7:00 AM 0.00 0.0 M M M
6/25/2012 7:00 AM 0.05 M M M M Late evening shower on the 24th (0.04") and another overnight shower (0.01"), 6:30AM sprinkle.
6/26/2012 7:00 AM 0.63 M M M M Severe thunderstorm 7:30-8AM with heavy rain and frequent cloud to ground lightning (though limited wind).
6/27/2012 7:00 AM 0.00 0.0 M M M
6/28/2012 7:00 AM 0.00 0.0 M M M
6/29/2012 7:00 AM 0.03 M M M M Light thundershower ending at observation time.
6/30/2012 7:00 AM T M M M M light thundershower ended shortly after ob time on 6/29
7/1/2012 7:00 AM 0.00 0.0 M M M
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 0.07 M M M M Shower began about an hour before ob time.
7/5/2012 7:00 AM 0.01 M M M M Shower ended shortly after 7/4 ob time
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 0.02 M M M M Thunderstorm 6:45-7PM with 34 mph gust. Heavier just to south.
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 T M M M M Evening sprinkles.
7/15/2012 7:00 AM 0.00 0.0 M M M
7/16/2012 7:00 AM 0.67 M M M M Light late afternoon shower (0.04"). Moderate evening thunderstorm.
7/17/2012 7:00 AM 0.00 0.0 M M M
7/18/2012 7:00 AM 0.00 0.0 M M M
7/19/2012 7:00 AM 0.65 M M M M Late afternoon thunderstorm. 101 max prior to then.
7/20/2012 7:00 AM 0.80 M M M M Overnight rain.
7/21/2012 7:00 AM 0.52 M M M M Off and on rain throughout the day.
7/22/2012 7:00 AM 0.00 0.0 M M M
7/23/2012 7:00 AM 0.00 0.0 M M M
7/24/2012 7:00 AM 0.03 M M M M Late afternoon thundershower. Mid evening brief shower.
7/25/2012 7:00 AM 0.00 0.0 M M M
7/26/2012 7:00 AM 0.00 0.0 M M M
7/27/2012 7:00 AM 0.47 M M M M Morning shower (0.06), Evening thunderstorm with 37 mph gust followed by light rain.
7/28/2012 7:00 AM 0.00 0.0 M M M
7/29/2012 7:00 AM 0.29 M M M M Midday light thunder shower (0.02"), mid evening thunderstorm.
7/30/2012 7:00 AM T M M M M early evening sprinkle
7/31/2012 7:00 AM 0.00 0.0 M M M
8/1/2012 7:00 AM 0.00 0.0 M M M
8/2/2012 7:00 AM 2.13 M M M M Steady, heavy rain with thunder from 1:30-3:30. A tenth of an inch following the heavier rain off and on into the mid evening.
8/3/2012 7:00 AM 0.00 0.0 M M M
8/4/2012 7:00 AM 0.00 0.0 M M M
8/5/2012 7:00 AM T M M M M Brief sprinkle as thunderstorm just to the east moves by in a south southwest to north northeast trajectory.
8/6/2012 7:00 AM 0.40 M M M M Squall line with 39 mph gust, brief heavy rain and only a little lightning around 7PM. Light showers evening and in the hours just after midnight.
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 0.0 M M M A few sprinkles as a storm to the south slid by.
8/11/2012 7:00 AM 0.76 M M M M Moderate to heavy mid day rain with minimal lightning.
8/12/2012 7:00 AM 0.45 M M M M Mid evening heavy shower.
8/13/2012 7:00 AM 0.00 0.0 M M M
8/14/2012 7:00 AM 0.00 0.0 M M M
8/15/2012 7:00 AM 0.17 M M M M 0.14" in late morning shower on 8/14. 0.03" in showers after midnight.
8/16/2012 7:00 AM 0.01 M M M M Late afternoon light shower.
8/17/2012 7:00 AM M 0.0 M M M Light rain at ob time until about 8:30A "(Original 0.10" rain/melted snow report on 8/17 changed to “NA” as rather certain that no rainfall occurred on this date. Original report submitted 8/21/2012 9:11 AM. Report edited by Adam Rainear)"
8/18/2012 7:00 AM 0.48 M M M M Late evening rain, remaining steady through the early morning hours to observation time.
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 T 0.0 M M M late afternoon sprinkle
8/27/2012 7:00 AM 0.00 0.0 M M M
8/28/2012 7:00 AM 2.09 M M M M Late morning thunderstorm with heavy rain and 24 mph gust. Late afternoon lighter thunderstorm. Light rain at daybreak through ob time (0.04").
8/29/2012 7:00 AM 0.05 M M M M Rain ended within a n hour of ob time.
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 0.03 M M M M Afternoon sprinkle, mid evening shower (0.02") and dawn shower (0.01")
9/4/2012 7:00 AM 0.04 M M M M Light morning, early evening and dawn showers.
9/5/2012 7:00 AM 0.16 M M M M Afternoon and evening showers and a very light shower (0.01") after midnight.
9/6/2012 7:00 AM 0.00 0.0 M M M
9/7/2012 7:00 AM 0.00 0.0 M M M
9/8/2012 7:00 AM 0.00 0.0 M M M
9/9/2012 7:00 AM 0.29 M M M M 9AM shower (0.11"), 5PM squall line with only 0.01" and 31mph gust, light rain evening (0.16), brief overnight shower (0.01).
9/10/2012 7:00 AM 0.00 0.0 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 0.00 0.0 M M M
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 7:00 AM 0.16 M M M M
9/19/2012 7:00 AM 1.16 M M M M Showers morning, squall line early evening, steady rain during several hours during the evening and a light shower during the night. Max wind gust 32 mph.
9/20/2012 7:00 AM 0.00 0.0 M M M
9/21/2012 7:00 AM 0.00 0.0 M M M
9/22/2012 7:00 AM 0.00 0.0 M M M
9/23/2012 7:00 AM 0.45 M M M M Thunderstorm 8:30-9:00 PM followed by some light rain. Storm mostly accompanied by heavy rain (0.26" between 8:40-8:45), not too much lightning or wind.
9/24/2012 7:00 AM 0.00 0.0 M M M
9/25/2012 7:00 AM 0.00 0.0 M M M
9/26/2012 7:00 AM T M M M M Post midnight light showers
9/27/2012 7:00 AM 0.03 M M M M Late afternoon and overnight light showers. Rain beginning again just minutes before ob time.
9/28/2012 7:00 AM 0.35 M M M M Morning shower on 8/27 (0.13"), rain predawn 8/28 (0.22")
9/29/2012 7:00 AM 0.01 M M M M Light morning shower.
9/30/2012 7:00 AM 0.00 0.0 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
9/30/2012 4:00 PM Observed in Raritan Borough while conducting a CoCoRaHS recruiting effort at a local fair. Hail melted within 10 minutes of falling. 0.33" of rain accompanied the hail. There were only several claps of thunder. Hail was spaced apart by 3-6" on the ground. 1/4" Pea Size 1/4" Pea Size Rice Hard|White Ice 5 2min no damage Continuous True After rain Same time as smaller hail vertical