Station Overview Station Location
Station Number NJ-MS-89 Latitude 40.871646
Station Name Parsippany-Troy Hills Twp 1.3 NE Longitude -74.405465
County Morris Elevation (ft) 340



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 17 4.37 5.61 31 5.61 31 0.00 0 0 12 2 0.0 0 0
Nov 17 4.03 1.20 30 1.20 30 0.00 0 0 11 2 0.0 0 0
Dec 17 3.90 1.85 31 1.85 31 0.00 0 0 10 5 7.8 5 10
Jan 18 3.54 4.08 31 4.08 31 0.00 0 0 12 3 7.1 5 14
Feb 18 2.80 6.52 28 6.52 28 0.00 0 0 16 2 10.0 2 6
March 18 4.02 4.49 31 4.49 31 0.00 0 0 13 4 33.1 8 16
April 18 4.30 6.66 30 6.66 30 0.00 0 0 14 3 7.4 3 2
May 18 4.42 4.22 30 4.22 30 0.00 0 0 17 3 0.0 0 0
June 18 4.59 1.89 8 1.89 8 0.00 0 0 4 1 0.0 0 0
July 18 4.68 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 18 4.17 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 18 4.34 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 49.16" 36.52" 250 days 36.52" 250 0.00" 0 days 0 109 days 25 days 65.4" 23 days 48 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
10/1/2017 0.00
10/2/2017 0.00
10/3/2017 0.00
10/4/2017 0.00
10/5/2017 0.00
10/6/2017 0.08
10/7/2017 0.00
10/8/2017 0.12
10/9/2017 0.12
10/10/2017 0.44
10/11/2017 0.00
10/12/2017 0.29
10/13/2017 0.05
10/14/2017 0.04
10/15/2017 T
10/16/2017 0.05
10/17/2017 0.00
10/18/2017 0.00
10/19/2017 0.00
10/20/2017 0.00
10/21/2017 0.00
10/22/2017 0.00
10/23/2017 0.00
10/24/2017 0.11
10/25/2017 1.07
10/26/2017 0.00
10/27/2017 T
10/28/2017 0.00
10/29/2017 0.00
10/30/2017 3.18
10/31/2017 0.06
11/1/2017 0.00
11/2/2017 0.01
11/3/2017 0.00
11/4/2017 0.00
11/5/2017 0.03
11/6/2017 0.04
11/7/2017 0.02
11/8/2017 0.50
11/9/2017 0.00
11/10/2017 0.03
11/11/2017 0.00
11/12/2017 0.00
11/13/2017 T
11/14/2017 0.13
11/15/2017 0.00
11/16/2017 0.07
11/17/2017 0.03
11/18/2017 0.00
11/19/2017 0.26
11/20/2017 T
11/21/2017 0.00
11/22/2017 0.00
11/23/2017 0.08
11/24/2017 0.00
11/25/2017 0.00
11/26/2017 0.00
11/27/2017 0.00
11/28/2017 0.00
11/29/2017 0.00
11/30/2017 0.00
12/1/2017 0.03
12/2/2017 0.00
12/3/2017 0.00
12/4/2017 T
12/5/2017 0.00
12/6/2017 0.32
12/7/2017 0.00
12/8/2017 0.00
12/9/2017 0.00
12/10/2017 0.29
12/11/2017 0.00
12/12/2017 T
12/13/2017 0.02
12/14/2017 0.12
12/15/2017 0.00
12/16/2017 0.04
12/17/2017 0.00
12/18/2017 T
12/19/2017 T
12/20/2017 0.00
12/21/2017 0.00
12/22/2017 0.00
12/23/2017 0.14
12/24/2017 0.58
12/25/2017 0.28
12/26/2017 0.00
12/27/2017 0.00
12/28/2017 0.00
12/29/2017 0.00
12/30/2017 T
12/31/2017 0.03
Day of YearDaily PrcpMultiday Prcp
1/1/2018 0.00
1/2/2018 0.00
1/3/2018 0.00
1/4/2018 T
1/5/2018 0.36
1/6/2018 0.00
1/7/2018 0.00
1/8/2018 0.00
1/9/2018 0.02
1/10/2018 0.00
1/11/2018 0.00
1/12/2018 0.05
1/13/2018 2.35
1/14/2018 0.00
1/15/2018 0.00
1/16/2018 T
1/17/2018 0.23
1/18/2018 0.08
1/19/2018 0.00
1/20/2018 0.00
1/21/2018 0.00
1/22/2018 0.02
1/23/2018 0.61
1/24/2018 0.16
1/25/2018 0.00
1/26/2018 0.00
1/27/2018 0.00
1/28/2018 0.15
1/29/2018 0.04
1/30/2018 0.01
1/31/2018 T
2/1/2018 0.00
2/2/2018 0.20
2/3/2018 0.00
2/4/2018 0.00
2/5/2018 0.79
2/6/2018 0.00
2/7/2018 T
2/8/2018 1.01
2/9/2018 0.00
2/10/2018 0.00
2/11/2018 0.80
2/12/2018 0.52
2/13/2018 0.00
2/14/2018 0.03
2/15/2018 0.03
2/16/2018 0.13
2/17/2018 0.08
2/18/2018 0.77
2/19/2018 0.00
2/20/2018 0.04
2/21/2018 T
2/22/2018 0.30
2/23/2018 0.40
2/24/2018 0.25
2/25/2018 0.84
2/26/2018 0.33
2/27/2018 0.00
2/28/2018 0.00
3/1/2018 0.00
3/2/2018 1.12
3/3/2018 0.52
3/4/2018 T
3/5/2018 0.00
3/6/2018 0.00
3/7/2018 0.14
3/8/2018 1.61
3/9/2018 T
3/10/2018 T
3/11/2018 0.00
3/12/2018 0.00
3/13/2018 0.14
3/14/2018 0.12
3/15/2018 0.01
3/16/2018 T
3/17/2018 0.00
3/18/2018 0.00
3/19/2018 0.00
3/20/2018 0.00
3/21/2018 0.01
3/22/2018 0.61
3/23/2018 0.00
3/24/2018 0.00
3/25/2018 0.00
3/26/2018 0.00
3/27/2018 0.00
3/28/2018 0.10
3/29/2018 0.01
3/30/2018 0.05
3/31/2018 0.05
Day of YearDaily PrcpMultiday Prcp
4/1/2018 0.00
4/2/2018 0.46
4/3/2018 0.30
4/4/2018 0.42
4/5/2018 0.04
4/6/2018 T
4/7/2018 0.04
4/8/2018 0.00
4/9/2018 0.00
4/10/2018 0.02
4/11/2018 0.00
4/12/2018 0.00
4/13/2018 0.00
4/14/2018 0.00
4/15/2018 0.00
4/16/2018 1.12
4/17/2018 2.07
4/18/2018 T
4/19/2018 0.30
4/20/2018 0.06
4/21/2018 0.00
4/22/2018 0.00
4/23/2018 0.00
4/24/2018 0.00
4/25/2018 0.49
4/26/2018 0.89
4/27/2018 0.00
4/28/2018 0.11
4/29/2018 0.34
4/30/2018 T
5/1/2018 0.05
5/2/2018 0.00
5/3/2018 0.00
5/4/2018 0.11
5/5/2018 T
5/6/2018 0.10
5/7/2018 0.24
5/8/2018 0.00
5/9/2018 0.00
5/10/2018 0.00
5/11/2018 0.39
5/12/2018 0.15
5/13/2018 0.14
5/14/2018 0.25
5/15/2018 T
5/16/2018 0.50
5/17/2018 0.59
5/18/2018 0.08
5/19/2018 0.20
5/20/2018 0.54
5/21/2018 0.02
5/22/2018 0.00
5/23/2018 0.58
5/24/2018 T
5/25/2018 0.00
5/26/2018 0.00
5/27/2018 0.21
5/28/2018 0.07
5/29/2018
5/30/2018 0.00
5/31/2018 0.00
6/1/2018 0.09
6/2/2018 0.34
6/3/2018 0.86
6/4/2018 0.60
6/5/2018 T
6/6/2018 0.00
6/7/2018 0.00
6/8/2018 0.00
6/9/2018
6/10/2018
6/11/2018
6/12/2018
6/13/2018
6/14/2018
6/15/2018
6/16/2018
6/17/2018
6/18/2018
6/19/2018
6/20/2018
6/21/2018
6/22/2018
6/23/2018
6/24/2018
6/25/2018
6/26/2018
6/27/2018
6/28/2018
6/29/2018
6/30/2018
Day of YearDaily PrcpMultiday Prcp
7/1/2018
7/2/2018
7/3/2018
7/4/2018
7/5/2018
7/6/2018
7/7/2018
7/8/2018
7/9/2018
7/10/2018
7/11/2018
7/12/2018
7/13/2018
7/14/2018
7/15/2018
7/16/2018
7/17/2018
7/18/2018
7/19/2018
7/20/2018
7/21/2018
7/22/2018
7/23/2018
7/24/2018
7/25/2018
7/26/2018
7/27/2018
7/28/2018
7/29/2018
7/30/2018
7/31/2018
8/1/2018
8/2/2018
8/3/2018
8/4/2018
8/5/2018
8/6/2018
8/7/2018
8/8/2018
8/9/2018
8/10/2018
8/11/2018
8/12/2018
8/13/2018
8/14/2018
8/15/2018
8/16/2018
8/17/2018
8/18/2018
8/19/2018
8/20/2018
8/21/2018
8/22/2018
8/23/2018
8/24/2018
8/25/2018
8/26/2018
8/27/2018
8/28/2018
8/29/2018
8/30/2018
8/31/2018
9/1/2018
9/2/2018
9/3/2018
9/4/2018
9/5/2018
9/6/2018
9/7/2018
9/8/2018
9/9/2018
9/10/2018
9/11/2018
9/12/2018
9/13/2018
9/14/2018
9/15/2018
9/16/2018
9/17/2018
9/18/2018
9/19/2018
9/20/2018
9/21/2018
9/22/2018
9/23/2018
9/24/2018
9/25/2018
9/26/2018
9/27/2018
9/28/2018
9/29/2018
9/30/2018



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2017 8:59 AM 0.00 0.0 0.00 0.0 0.00 Dry day number 11
10/2/2017 7:02 AM 0.00 0.0 0.00 0.0 0.00 12th dry day straight. Quite chilly this morning
10/3/2017 6:55 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/4/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00 Dry day 14
10/5/2017 7:03 AM 0.00 0.0 0.00 0.0 0.00 Dry day #15
10/6/2017 7:00 AM 0.08 0.0 0.00 0.0 0.00 Some light rain beginning after 9pm last night
10/7/2017 8:57 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/8/2017 8:21 AM 0.12 0.0 0.00 0.0 0.00 Ongoing light rain
10/9/2017 8:13 AM 0.12 0.0 0.00 0.0 0.00 The 0.12 ob yesterday plus 0.05 of today's amount totals 0.17 ending yesterday before noon or so. 0.07 from last night.
10/10/2017 6:52 AM 0.44 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/11/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/12/2017 7:18 AM 0.29 0.0 0.00 0.0 0.00 0.02 daytime (before 10p). 0.27 Overnight. Still some ongoing sprinkles and very light rain this morning.
10/13/2017 7:45 AM 0.05 0.0 0.00 0.0 0.00 Leftover light rain from yesterday morning
10/14/2017 8:26 AM 0.04 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/15/2017 8:30 AM T 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/16/2017 7:13 AM 0.05 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/17/2017 6:59 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/18/2017 6:45 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/19/2017 6:56 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/20/2017 7:06 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/21/2017 8:14 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/22/2017 9:19 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/23/2017 7:02 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/24/2017 7:47 AM 0.11 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/25/2017 7:13 AM 1.07 0.0 0.00 0.0 0.00 About 0.10 from early showers. 0.97 from heavy line.
10/26/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/27/2017 7:46 AM T 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/28/2017 7:56 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/29/2017 7:44 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/30/2017 7:01 AM 3.18 0.0 0.00 0.0 0.00 2.43" through 10pm, +0.75 overnight through 7am. One final band about to come through.
10/31/2017 7:02 AM 0.06 0.0 0.00 0.0 0.00 Storm Total 3.24"
11/1/2017 7:23 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
11/2/2017 6:31 AM 0.01 0.0 0.00 0.0 0.00
11/3/2017 7:05 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
11/4/2017 7:18 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
11/5/2017 5:47 AM 0.03 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
11/6/2017 3:10 AM 0.04 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
11/7/2017 3:16 AM 0.02 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
11/8/2017 4:00 AM 0.50 T T 0.0 0.00 At the onset of rain, wet snow and sleet mixed in with air temperature 38-39 degrees. Nothing accumulated aside from a hand full of sleet pellets briefly on a car top. Rain then persisted into the evening.
11/9/2017 3:07 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
11/10/2017 3:14 AM 0.03 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
11/11/2017 6:57 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
11/12/2017 7:01 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
11/13/2017 7:10 AM T 0.0 0.00 0.0 0.00 A few drops started around 7a. Temps 36-37.
11/14/2017 7:00 AM 0.13 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
11/15/2017 7:18 AM 0.00 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
11/16/2017 7:31 AM 0.07 0.0 0.00 0.0 0.00 Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
11/17/2017 7:27 AM 0.03 0.0 0.00 0.0 0.00 Breezy this morning
11/18/2017 7:26 AM 0.00 0.0 0.00 0.0 0.00
11/19/2017 6:58 AM 0.26 0.0 0.00 0.0 0.00 Seems like rain is just ending. Pretty breezy.
11/20/2017 6:57 AM T T T 0.0 0.00
11/21/2017 6:56 AM 0.00 0.0 0.00 0.0 0.00
11/22/2017 3:15 AM 0.00 0.0 0.00 0.0 0.00 *Note 3:30am ob time
11/23/2017 8:00 AM 0.08 0.0 0.00 0.0 0.00
11/24/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00
11/25/2017 6:32 AM 0.00 0.0 0.00 0.0 0.00
11/26/2017 8:08 AM 0.00 0.0 0.00 0.0 0.00
11/27/2017 6:59 AM 0.00 0.0 0.00 0.0 0.00
11/28/2017 6:58 AM 0.00 0.0 0.00 0.0 0.00
11/29/2017 6:38 AM 0.00 0.0 0.00 0.0 0.00 Very damp on all surfaces, even paved, despite no precipitation.
11/30/2017 7:08 AM 0.00 0.0 0.00 0.0 0.00
12/1/2017 7:22 AM 0.03 0.0 0.00 0.0 0.00
12/2/2017 7:19 AM 0.00 0.0 0.00 0.0 0.00
12/3/2017 7:00 AM 0.00 0.0 0.00 0.0 0.00
12/4/2017 8:00 AM T 0.0 0.00 0.0 0.00 Sprinkle yesterday. Very frosty this morning.
12/5/2017 7:11 AM 0.00 0.0 0.00 0.0 0.00
12/6/2017 6:00 AM 0.32 0.0 0.00 0.0 0.00
12/7/2017 6:30 AM 0.00 0.0 0.00 0.0 0.00
12/8/2017 6:30 AM 0.00 0.0 0.00 0.0 0.00
12/9/2017 7:59 AM 0.00 0.0 0.00 0.0 0.00 There may have been 10 flakes on the hood of my car from overnight (Technically a trace, but really?). Not actively snowing.
12/10/2017 7:15 AM 0.29 4.1 0.29 3.0 M Total Snow Depth varied 2.8-3.4". Walks/drives are an icy mess if not treated.
12/11/2017 8:00 AM 0.00 0.0 0.00 2.5 M
12/12/2017 8:00 AM T 0.0 0.00 0.5 M About half grass showing with some cover up to 1.0" in spots.
12/13/2017 8:00 AM 0.02 T T 0.0 0.00 Rain yesterday evening with some brief snow afterwards left only a car top dusting. Temps quickly fell. Water on cars iced quickly, but pavements remained wet. Remaining puddles iced over. Residual snowcover is gone, barring isolated piles from shoveling/plowing.
12/14/2017 8:00 AM 0.12 1.8 0.12 1.8 M
12/15/2017 8:00 AM 0.00 0.0 0.00 1.0 M All grassy surfaces remain snow covered.
12/16/2017 6:54 AM 0.04 0.5 0.04 1.5 0.11
12/17/2017 8:00 AM 0.00 0.0 0.00 1.5 M
12/18/2017 8:00 AM T 0.0 0.00 0.5 M About half the ground is clear. The other half around 0.5-1.0".
12/19/2017 8:00 AM T 0.0 0.00 0.0 0.00 Only very isolated snow piles remain.
12/20/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00
12/21/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00
12/22/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00 I was surprised to still see a snow pile melting across a parking lot yesterday evening.
12/23/2017 8:00 AM 0.14 0.0 0.00 0.0 0.00
12/24/2017 8:00 AM 0.58 0.0 0.00 0.0 0.00
12/25/2017 8:00 AM 0.28 0.8 0.08 0.5 M
12/26/2017 8:00 AM 0.00 0.0 0.00 T T
12/27/2017 8:00 AM 0.00 0.0 0.00 T T
12/28/2017 8:00 AM 0.00 0.0 0.00 T T Snow depth is really 50% none, 50% Trace. One can argue it's virtually clear.
12/29/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00
12/30/2017 8:00 AM T T T T T Dusting on all surfaces. Minor event just under way.
12/31/2017 8:00 AM 0.03 0.6 0.03 0.5 M Light snow much of the day, 7a-2p. Another snow shower around 9-11pm with an additional Coating.
1/1/2018 8:00 AM 0.00 0.0 0.00 0.5 M Ground and many roofs remain covered in small amount of snow.
1/2/2018 8:00 AM 0.00 0.0 0.00 0.5 M All ground surfaces still snow covered with grass poking through. Generally T-0.5.
1/3/2018 8:00 AM 0.00 0.0 0.00 T M Many ground surfaces still covered, but mainly less than 0.5"
1/4/2018 7:00 AM T T T T M
1/5/2018 8:00 AM 0.36 4.3 0.36 4.0 M
1/6/2018 8:00 AM 0.00 0.0 0.00 3.0 M Large variability in ground depth, but all non-traveled surfaces still covered.
1/7/2018 8:00 AM 0.00 0.0 0.00 2.5 M Untraveled surfaces remain covered, albeit with variable amounts. Despite temps, some minor melting from sunlight.
1/8/2018 8:00 AM 0.00 0.0 0.00 2.5 M
1/9/2018 8:00 AM 0.02 0.2 0.02 2.5 M
1/10/2018 8:00 AM 0.00 0.0 0.00 1.5 M There are more and more grassy areas popping up, especially on small hills and slopes. General average is 1.5", ranging 0.0-2.5"
1/11/2018 8:00 AM 0.00 0.0 0.00 1.5 M
1/12/2018 7:19 AM 0.05 0.0 0.00 0.5 M Ground depth is average. Mostly grass starting to show plus piles. Steady light right now with dense fog.
1/13/2018 8:00 AM 2.35 0.0 0.00 0.0 0.00
1/14/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
1/15/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 Only retail snow piles remain and isolated residential ones. Still observed some runoff water seeping from yards onto sidewalks and freezing into black ice.
1/16/2018 8:00 AM T T T T T A few flurries and very light snow developed 730-745a. Very, very light dusting by 8am.
1/17/2018 8:00 AM 0.23 1.3 0.16 1.3 M Coating of ice plus coating of sleet under snow.
1/18/2018 8:00 AM 0.08 1.2 0.08 2.0 M 2-day/Storm total 2.5". Good deal of black ice around this morning.
1/19/2018 8:00 AM 0.00 0.0 0.00 2.0 M Still a good deal of black ice in many lots.
1/20/2018 8:00 AM 0.00 0.0 0.00 1.0 M
1/21/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 Not much more than snow piles remain
1/22/2018 8:00 AM 0.02 0.0 0.00 0.0 0.00
1/23/2018 8:00 AM 0.61 0.0 0.00 0.0 0.00 Big rumble of thunder around 5am associated with the downpour.
1/24/2018 8:00 AM 0.16 0.0 0.00 0.0 0.00
1/25/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
1/26/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
1/27/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
1/28/2018 8:00 AM 0.15 0.0 0.00 0.0 0.00
1/29/2018 8:00 AM 0.04 0.0 0.00 0.0 0.00
1/30/2018 8:00 AM 0.01 0.1 0.01 T T
1/31/2018 8:00 AM T T T 0.0 0.00 Light snow yesterday between 11a-1230 p. Car top dusting, if anything at all.
2/1/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
2/2/2018 8:00 AM 0.20 0.0 0.00 0.0 0.00 Not sure if any snow fell over night, however no evidence was present at 7-8am. Areas [and my car] were icy from the falling temps and wet surfaces.
2/3/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
2/4/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
2/5/2018 8:00 AM 0.79 T T T T Light snow at times yesterday leaving a light coating on cold surfaces. Drizzle and rain in the evening and overnight. Sleet shower this morning left another light coating.
2/6/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
2/7/2018 7:00 AM T T T T T Event just getting started
2/8/2018 7:18 AM 1.01 1.5 0.18 1.5 M Snow began around 8am (1.3"). Transitioned to steady sleet at 1050am (0.2"). Then to a prolonged period of steady freezing rain before noon (0.10" ice by day's end). Icing of cleared surfaces did not diminish until 6pm, and even then, new ice continued to exist in shaded areas. 0.10" ice was also observed by me near the square in Morristown NJ at 3pm, with significant ice on trees branches and lines between Morristown and Parsippany. Main roads were partially wet, icy, and slushy. Many walkways during the day continued to see significant icing, even if treated. Plenty of black ice remains today.
2/9/2018 8:00 AM 0.00 0.0 0.00 0.5 M
2/10/2018 8:00 AM 0.00 0.0 0.00 0.5 M
2/11/2018 7:48 AM 0.80 0.0 0.00 0.0 0.00
2/12/2018 8:00 AM 0.52 0.0 0.00 0.0 0.00
2/13/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
2/14/2018 8:00 AM 0.03 T T T T Shaded walks are a sheet of ice; exposed are wet. All cars are iced over with a few sleet pallets encased in ice.
2/15/2018 8:00 AM 0.03 0.0 0.00 0.0 0.00
2/16/2018 7:08 AM 0.13 0.0 0.00 0.0 0.00
2/17/2018 8:00 AM 0.08 0.0 0.00 0.0 0.00
2/18/2018 8:00 AM 0.77 8.5 0.77 7.5 M
2/19/2018 8:00 AM 0.00 0.0 0.00 4.0 M Some black ice around from melt and refreeze.
2/20/2018 8:00 AM 0.04 0.0 0.00 0.5 M
2/21/2018 8:00 AM T 0.0 0.00 0.0 0.00 Down to just snow piles.
2/22/2018 7:24 AM 0.30 0.0 0.00 0.0 0.00
2/23/2018 7:02 AM 0.40 0.0 0.00 0.0 0.00
2/24/2018 8:00 AM 0.25 0.0 0.00 0.0 0.00
2/25/2018 8:00 AM 0.84 0.0 0.00 0.0 0.00
2/26/2018 7:09 AM 0.33 0.0 0.00 0.0 0.00
2/27/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
2/28/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
3/1/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
3/2/2018 6:59 AM 1.12 0.0 0.00 0.0 0.00 Another area of heavier rain looks to be on my doorstep.
3/3/2018 8:00 AM 0.52 0.5 0.05 0.0 0.00 What an amazing storm. 3 miles up the road in Denville, around 4" occurred at an elevation of 670', while my office near 202/10 at 350' in Parsippany saw maybe an inch, and here in Parsippany at 330' along side the reservoir, nearly nothing stuck and nothing to show for it today. On the wind side of things, ironically, they just shoveled all the twigs from the walks, and two 40' trees were uprooted, one causing structural damage to the apartments and knocking out power to that building while the other narrowly missed my apartment causing only cosmetic damage.
3/4/2018 8:00 AM T 0.0 0.00 0.0 0.00
3/5/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
3/6/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
3/7/2018 7:00 AM 0.14 0.8 0.14 0.8 0.14 Ongoing light snow.
3/8/2018 6:59 AM 1.61 20.9 1.61 19.0 M 1-2pm & 5-6p featured 3" per hour rates, while 2-3p and 4-5p had 4" per hour rates. Lost power for 2 hours around 7pm. The city restricted travel at 530pm. Storm Total 21.7"
3/9/2018 8:00 AM T T T 13.0 M Solid dusting on all surfaces around 5am. Additional flurries between 7-730a
3/10/2018 8:00 AM T T T 11.0 M Additional snow showers in the morning produced an additional dusting.
3/11/2018 8:00 AM 0.00 0.0 0.00 9.0 M
3/12/2018 8:00 AM 0.00 0.0 0.00 8.0 M
3/13/2018 8:00 AM 0.14 2.2 0.14 9.5 M
3/14/2018 8:00 AM 0.12 1.1 0.12 6.0 M 2-day Storm Total 3.3" on 0.26".
3/15/2018 8:00 AM 0.01 0.1 0.01 5.0 M 0.1" on cartops and colder surfaces.
3/16/2018 8:00 AM T T T 3.5 M Brief snow showers yesterday evening. Only a few flakes survived the grill and car tops. Around 3.5" remains on flat ground, but some grass is starting to show on hills and disturbed areas.
3/17/2018 8:00 AM 0.00 0.0 0.00 2.5 M
3/18/2018 8:00 AM 0.00 0.0 0.00 1.0 M Getting down to mixed snow cover and grass.
3/19/2018 8:00 AM 0.00 0.0 0.00 0.5 M Getting down to snow in only shaded areas and piles.
3/20/2018 8:00 AM 0.00 0.0 0.00 T M Mainly grass showing now. Many snow piles remain.
3/21/2018 7:00 AM 0.01 0.1 0.01 T M Cars and colder surfaces have a coating
3/22/2018 8:00 AM 0.61 7.4 0.61 6.5 M From 6a-9p, 4.0" (0.1" from yesterday included) on 0.34" for a ratio of 11.8-to-1.0. From 9p-7a, 3.5" on 0.28" for a ratio of 12.5-to-1.0.
3/23/2018 8:00 AM 0.00 0.0 0.00 2.5 M
3/24/2018 8:00 AM 0.00 0.0 0.00 0.5 M
3/25/2018 8:00 AM 0.00 0.0 0.00 T M Realistically, only piles and shaded areas with snow remain.
3/26/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 Snow piles and a few shaded areas with snow remain.
3/27/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 Still some run off from piles. Second day with frost in a row.
3/28/2018 8:00 AM 0.10 0.0 0.00 0.0 0.00 Still a few snow piles remain
3/29/2018 8:00 AM 0.01 0.0 0.00 0.0 M
3/30/2018 8:00 AM 0.05 0.0 0.00 0.0 0.00
3/31/2018 8:00 AM 0.05 0.0 0.00 0.0 0.00
4/1/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
4/2/2018 7:00 AM 0.46 4.4 0.46 4.4 0.46 This is not storm total. Still ongoing light to moderate snow. This is as of 7:00am.
4/3/2018 8:00 AM 0.30 2.8 0.30 2.0 M
4/4/2018 8:00 AM 0.42 0.0 0.00 T M Ongoing drizzle and dense fog. The Trace of snow might be generous. It's mainly shaded areas and piles.
4/5/2018 8:00 AM 0.04 0.0 0.00 0.0 0.00 Some black ice in areas of runoff and snow pile melt.
4/6/2018 8:00 AM T T T T M
4/7/2018 8:00 AM 0.04 0.2 0.02 0.0 0.00
4/8/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
4/9/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
4/10/2018 8:00 AM 0.02 T T T T
4/11/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
4/12/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
4/13/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
4/14/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
4/15/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
4/16/2018 6:59 AM 1.12 0.0 0.00 0.0 0.00 Ongoing steady rain.
4/17/2018 8:00 AM 2.07 0.0 0.00 0.0 0.00 Storm Total: 3.19"
4/18/2018 6:48 AM T 0.0 0.00 0.0 0.00 Only a rouge sprinkle or two.
4/19/2018 7:36 AM 0.30 0.0 0.00 0.0 0.00
4/20/2018 7:34 AM 0.06 0.0 0.00 0.0 0.00
4/21/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
4/22/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
4/23/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
4/24/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
4/25/2018 7:08 AM 0.49 0.0 0.00 0.0 0.00
4/26/2018 6:56 AM 0.89 0.0 0.00 0.0 0.00 1.38" 2-Day Total
4/27/2018 7:45 AM 0.00 0.0 0.00 0.0 0.00
4/28/2018 8:00 AM 0.11 0.0 0.00 0.0 0.00
4/29/2018 8:00 AM 0.34 0.0 0.00 0.0 0.00
4/30/2018 7:13 AM T 0.0 0.00 0.0 0.00
5/1/2018 8:00 AM 0.05 0.0 0.00 0.0 0.00
5/2/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
5/3/2018 6:56 AM 0.00 0.0 0.00 0.0 0.00
5/4/2018 7:12 AM 0.11 0.0 0.00 0.0 0.00 0.07" + 0.04" yesterday evening/overnight
5/5/2018 8:00 AM T 0.0 0.00 0.0 0.00
5/6/2018 7:00 AM 0.10 0.0 0.00 0.0 0.00
5/7/2018 7:45 AM 0.24 0.0 0.00 0.0 0.00
5/8/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
5/9/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
5/10/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
5/11/2018 7:03 AM 0.39 0.0 0.00 0.0 0.00 0.38" between 815-845 PM.
5/12/2018 8:00 AM 0.15 0.0 0.00 0.0 0.00
5/13/2018 8:00 AM 0.14 0.0 0.00 0.0 0.00
5/14/2018 8:00 AM 0.25 0.0 0.00 0.0 0.00
5/15/2018 8:00 AM T 0.0 0.00 0.0 0.00
5/16/2018 6:11 AM 0.50 0.0 0.00 0.0 0.00 The area between routes 53/46/287/10 Denville/Parsippany, while not nearly the damage of the winter storms, got hit pretty bad. On my 10 minute drive, there were 3 uprooted 30-35' trees and 9 medium to large branches snapped off.
5/17/2018 7:08 AM 0.59 0.0 0.00 0.0 0.00 0.39" of it before 7pm yesterday. The rest came over night.
5/18/2018 7:18 AM 0.08 0.0 0.00 0.0 0.00
5/19/2018 8:00 AM 0.20 0.0 0.00 0.0 0.00 .2 (MG note: changed precip from 0.00" to 0.20", as believe that this value, as entered in ob notes, was the measured value. Contacted observer to confirm. OST 5/19/2018 7:26 AM)
5/20/2018 8:00 AM 0.54 0.0 0.00 0.0 0.00
5/21/2018 8:00 AM 0.02 0.0 0.00 0.0 0.00
5/22/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
5/23/2018 8:00 AM 0.58 0.0 0.00 0.0 0.00
5/24/2018 8:00 AM T 0.0 0.00 0.0 0.00
5/25/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
5/26/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
5/27/2018 8:00 AM 0.21 0.0 0.00 0.0 0.00
5/28/2018 8:00 AM 0.07 0.0 0.00 0.0 0.00
5/30/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
5/31/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
6/1/2018 8:00 AM 0.09 M M M M
6/2/2018 8:00 AM 0.34 0.0 0.00 0.0 0.00
6/3/2018 8:00 AM 0.86 M M M M
6/4/2018 8:00 AM 0.60 0.0 0.00 0.0 0.00
6/5/2018 8:00 AM T 0.0 0.00 0.0 0.00
6/6/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
6/7/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
6/8/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00



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