Station Overview Station Location
Station Number MA-MD-62 Latitude 42.597167
Station Name Chelmsford 1.2 E Longitude -71.344931
County Middlesex Elevation (ft) 132



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 4.32 5.17 31 5.01 27 0.16 4 2 10 2 0.0 0 0
Nov 17 4.22 1.78 30 1.78 30 0.00 0 0 8 4 0.0 0 0
Dec 17 4.01 3.10 31 3.10 25 0.00 6 0 9 2 0.0 0 0
Jan 18 3.53 4.32 31 4.06 30 0.26 1 1 9 2 0.0 0 0
Feb 18 3.22 4.18 28 4.18 28 0.00 0 0 13 2 0.0 0 0
March 18 4.31 4.89 31 4.89 31 0.00 0 0 14 4 0.0 0 0
April 18 3.96 5.69 30 2.83 24 2.86 6 1 12 2 0.0 0 0
May 18 4.01 2.20 31 2.20 31 0.00 0 0 11 5 0.0 0 0
June 18 4.07 3.03 30 2.96 28 0.07 2 1 11 1 0.0 0 0
July 18 3.70 3.62 31 3.03 28 0.59 3 1 8 0 0.0 0 0
Aug 18 3.58 6.00 31 4.81 26 1.19 5 1 11 0 0.0 0 0
Sept 18 3.76 6.50 30 4.71 25 1.79 5 2 9 1 0.0 0 0
Water Year Totals: 46.69" 50.48" 365 days 43.56" 333 6.92" 32 days 9 125 days 25 days 0.0" 0 days 0 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 0.16
10/2/2017 **
10/3/2017 **
10/4/2017 0.00
10/5/2017 0.00
10/6/2017 0.00
10/7/2017 0.01
10/8/2017 0.00
10/9/2017 0.18
10/10/2017 0.36
10/11/2017 0.00
10/12/2017 T
10/13/2017 0.00
10/14/2017 T
10/15/2017 0.01
10/16/2017 0.00
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 0.08
10/25/2017 0.69
10/26/2017 0.64
10/27/2017 0.42
10/28/2017 0.00
10/29/2017 0.00
10/30/2017 2.60
10/31/2017 0.02
11/1/2017 0.00
11/2/2017 T
11/3/2017 T
11/4/2017 0.00
11/5/2017 0.00
11/6/2017 0.00
11/7/2017 0.05
11/8/2017 0.07
11/9/2017 0.00
11/10/2017 0.00
11/11/2017 0.00
11/12/2017 0.00
11/13/2017 0.00
11/14/2017 0.32
11/15/2017 0.00
11/16/2017 T
11/17/2017 0.43
11/18/2017 0.00
11/19/2017 0.24
11/20/2017 0.08
11/21/2017 0.00
11/22/2017 0.02
11/23/2017 0.57
11/24/2017 0.00
11/25/2017 0.00
11/26/2017 0.00
11/27/2017 T
11/28/2017 0.00
11/29/2017 0.00
11/30/2017 0.00
12/1/2017 0.08
12/2/2017 0.00
12/3/2017 0.00
12/4/2017 0.00
12/5/2017 0.00
12/6/2017 0.71
12/7/2017 0.00
12/8/2017 0.00
12/9/2017 0.00
12/10/2017 0.69
12/11/2017 0.00
12/12/2017 T
12/13/2017 0.27
12/14/2017 0.00
12/15/2017 0.00
12/16/2017 T
12/17/2017 0.00
12/18/2017 0.00
12/19/2017 0.02
12/20/2017 0.00
12/21/2017 0.00
12/22/2017 0.02
12/23/2017 0.32
12/24/2017 0.60
12/25/2017 0.39
12/26/2017 **
12/27/2017 **
12/28/2017 **
12/29/2017 **
12/30/2017 **
12/31/2017 **
Day of YearDaily PrcpMultiday Prcp
1/1/2018 0.26
1/2/2018 0.00
1/3/2018 0.00
1/4/2018 0.20
1/5/2018 1.54
1/6/2018 0.00
1/7/2018 0.00
1/8/2018 0.00
1/9/2018 T
1/10/2018 0.00
1/11/2018 0.00
1/12/2018 0.00
1/13/2018 0.90
1/14/2018 0.00
1/15/2018 0.00
1/16/2018 0.00
1/17/2018 0.16
1/18/2018 0.22
1/19/2018 0.00
1/20/2018 0.00
1/21/2018 0.00
1/22/2018 0.01
1/23/2018 0.16
1/24/2018 0.85
1/25/2018 0.00
1/26/2018 0.00
1/27/2018 0.00
1/28/2018 0.02
1/29/2018 0.00
1/30/2018 T
1/31/2018 0.00
2/1/2018 0.01
2/2/2018 0.30
2/3/2018 0.00
2/4/2018 0.00
2/5/2018 0.55
2/6/2018 0.00
2/7/2018 T
2/8/2018 0.75
2/9/2018 0.00
2/10/2018 0.00
2/11/2018 0.44
2/12/2018 0.79
2/13/2018 0.00
2/14/2018 0.00
2/15/2018 0.00
2/16/2018 0.04
2/17/2018 T
2/18/2018 0.61
2/19/2018 0.00
2/20/2018 0.04
2/21/2018 0.00
2/22/2018 0.00
2/23/2018 0.10
2/24/2018 0.08
2/25/2018 0.06
2/26/2018 0.41
2/27/2018 0.00
2/28/2018 0.00
3/1/2018 0.01
3/2/2018 0.35
3/3/2018 1.22
3/4/2018 0.00
3/5/2018 0.08
3/6/2018 0.00
3/7/2018 0.00
3/8/2018 1.30
3/9/2018 T
3/10/2018 T
3/11/2018 T
3/12/2018 0.00
3/13/2018 0.44
3/14/2018 1.10
3/15/2018 0.02
3/16/2018 0.00
3/17/2018 0.00
3/18/2018 0.00
3/19/2018 0.00
3/20/2018 0.00
3/21/2018 0.00
3/22/2018 0.13
3/23/2018 0.08
3/24/2018 0.00
3/25/2018 0.10
3/26/2018 T
3/27/2018 0.00
3/28/2018 0.01
3/29/2018 0.00
3/30/2018 0.03
3/31/2018 0.02
Day of YearDaily PrcpMultiday Prcp
4/1/2018 0.00
4/2/2018 0.01
4/3/2018 0.08
4/4/2018 0.51
4/5/2018 0.19
4/6/2018 0.00
4/7/2018 0.50
4/8/2018 0.01
4/9/2018 T
4/10/2018 0.00
4/11/2018 0.00
4/12/2018 0.00
4/13/2018 0.14
4/14/2018 0.00
4/15/2018 **
4/16/2018 **
4/17/2018 **
4/18/2018 **
4/19/2018 **
4/20/2018 2.86
4/21/2018 0.00
4/22/2018 0.00
4/23/2018 0.00
4/24/2018 0.00
4/25/2018 0.04
4/26/2018 0.75
4/27/2018 T
4/28/2018 0.41
4/29/2018 0.02
4/30/2018 0.17
5/1/2018 0.10
5/2/2018 T
5/3/2018 0.00
5/4/2018 T
5/5/2018 0.01
5/6/2018 0.02
5/7/2018 0.62
5/8/2018 0.00
5/9/2018 0.00
5/10/2018 0.00
5/11/2018 T
5/12/2018 0.00
5/13/2018 0.11
5/14/2018 T
5/15/2018 0.00
5/16/2018 0.69
5/17/2018 0.00
5/18/2018 0.00
5/19/2018 0.00
5/20/2018 0.30
5/21/2018 0.07
5/22/2018 0.00
5/23/2018 0.04
5/24/2018 0.00
5/25/2018 0.00
5/26/2018 0.00
5/27/2018 0.15
5/28/2018 0.09
5/29/2018 T
5/30/2018 0.00
5/31/2018 0.00
6/1/2018 0.00
6/2/2018 0.03
6/3/2018 0.06
6/4/2018 0.06
6/5/2018 0.32
6/6/2018 0.02
6/7/2018 0.00
6/8/2018 0.00
6/9/2018 0.01
6/10/2018 0.00
6/11/2018 0.00
6/12/2018 0.00
6/13/2018 0.00
6/14/2018 0.00
6/15/2018 0.00
6/16/2018 T
6/17/2018 0.00
6/18/2018 0.00
6/19/2018 0.64
6/20/2018 0.00
6/21/2018 **
6/22/2018 0.07
6/23/2018 0.00
6/24/2018 0.05
6/25/2018 0.52
6/26/2018 0.00
6/27/2018 0.00
6/28/2018 0.68
6/29/2018 0.57
6/30/2018 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2018 0.00
7/2/2018 0.00
7/3/2018 0.00
7/4/2018 0.09
7/5/2018 0.00
7/6/2018 0.00
7/7/2018 0.21
7/8/2018 0.00
7/9/2018 0.00
7/10/2018 0.00
7/11/2018 0.01
7/12/2018 0.00
7/13/2018 0.00
7/14/2018 0.00
7/15/2018 0.17
7/16/2018 0.00
7/17/2018 0.00
7/18/2018 1.48
7/19/2018 0.00
7/20/2018 0.00
7/21/2018 0.00
7/22/2018 0.03
7/23/2018 **
7/24/2018 **
7/25/2018 0.59
7/26/2018 0.78
7/27/2018 0.26
7/28/2018 0.00
7/29/2018 0.00
7/30/2018 0.00
7/31/2018 0.00
8/1/2018 0.00
8/2/2018 0.01
8/3/2018 0.13
8/4/2018 0.00
8/5/2018 0.38
8/6/2018 0.00
8/7/2018 0.00
8/8/2018 0.08
8/9/2018 0.16
8/10/2018 0.02
8/11/2018 0.00
8/12/2018 1.67
8/13/2018 0.10
8/14/2018 0.20
8/15/2018 0.59
8/16/2018 0.00
8/17/2018 0.00
8/18/2018 1.47
8/19/2018 **
8/20/2018 **
8/21/2018 **
8/22/2018 **
8/23/2018 1.19
8/24/2018 0.00
8/25/2018 0.00
8/26/2018 0.00
8/27/2018 0.00
8/28/2018 0.00
8/29/2018 0.00
8/30/2018 0.00
8/31/2018 0.00
9/1/2018 0.00
9/2/2018 0.00
9/3/2018 0.00
9/4/2018 0.00
9/5/2018 0.00
9/6/2018 0.00
9/7/2018 0.41
9/8/2018 0.00
9/9/2018 0.00
9/10/2018 **
9/11/2018 **
9/12/2018 1.79
9/13/2018 0.26
9/14/2018 **
9/15/2018 0.00
9/16/2018 0.00
9/17/2018 0.00
9/18/2018 0.94
9/19/2018 1.22
9/20/2018 T
9/21/2018 0.00
9/22/2018 0.02
9/23/2018 0.00
9/24/2018 0.00
9/25/2018 0.00
9/26/2018 0.99
9/27/2018 0.78
9/28/2018 0.06
9/29/2018 0.03
9/30/2018 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/5/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00 light dew on the gauge this morning
10/6/2017 8:00 AM 0.00 0.0 M M M
10/7/2017 8:00 AM 0.01 0.0 0.00 0.0 0.00 It rained on me while I was working outside yesterday. No dew this morning.
10/8/2017 8:00 AM 0.00 0.0 M M M
10/9/2017 8:03 AM 0.18 0.0 0.00 0.0 0.00 Lightly raining when I collected the measurement.
10/10/2017 8:00 AM 0.36 0.0 0.00 0.0 0.00 Seems like it should have been more since it felt like it rained all day yesterday, but it didn't really rain hard for very long.
10/11/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00 Lots of dew this morning.
10/12/2017 8:00 AM T 0.0 0.00 0.0 0.00 I had to run my wipers while driving home around 11pm last night.
10/13/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00 heavy dew on gauge, and everything else. brr.
10/14/2017 9:00 AM T 0.0 0.00 0.0 0.00 misting while I was reading the gauge
10/15/2017 8:00 AM 0.01 0.0 0.00 0.0 0.00 It did actually rain on me yesterday. I did use my windshield wipers.
10/16/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00
10/17/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00 light dew on the gauge. frost on my windshield.
10/18/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00 very light dew this morning
10/19/2017 8:00 AM 0.00 0.0 M M M
10/20/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00
10/21/2017 8:00 AM 0.00 0.0 M M M
10/22/2017 8:00 AM 0.00 0.0 M M M
10/23/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00
10/24/2017 8:00 AM 0.08 0.0 0.00 0.0 0.00 rained overnight
10/25/2017 8:20 AM 0.69 0.0 0.00 0.0 0.00 managed to find a break in the rain to go collect the measurement. 0.69", almost all of it was overnight.
10/26/2017 8:20 AM 0.64 0.0 0.00 0.0 0.00 Measuring in the rain
10/27/2017 8:00 AM 0.42 0.0 0.00 0.0 0.00 also a dense coating of dew on the gauge (and everything else)
10/28/2017 8:00 AM 0.00 0.0 M M M
10/29/2017 8:00 AM 0.00 0.0 M M M
10/30/2017 8:00 AM 2.60 0.0 0.00 0.0 0.00 Huge wind and rain storm overnight. Power out to half the schools in town. Tons of leaves and small branches down in my yard. 1.00+0.88+0.72=2.60"
10/31/2017 8:00 AM 0.02 M M M M
11/1/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00 Nice layer of frost on the gauge today. Brrr.
11/2/2017 8:00 AM T 0.0 0.00 0.0 0.00 just a few drops on top of the funnel. No dew on anything, and I had to use my wipers on the way home last night.
11/3/2017 8:00 AM T 0.0 0.00 0.0 0.00 A ton of dew on everything, but also some actual puddles on the road.
11/4/2017 8:00 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
11/5/2017 8:00 AM 0.00 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
11/6/2017 8:00 AM 0.00 0.0 M M M
11/7/2017 8:00 AM 0.05 0.0 0.00 0.0 0.00
11/8/2017 8:00 AM 0.07 0.0 0.00 0.0 0.00
11/9/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00 Frosty, frosty gauge. Frost on everything.
11/10/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00 There were a few drops in the bottom of the gauge (outer cylinder only, inner and funnel are hiding from the cold) but I think they were just melted frost.
11/11/2017 8:00 AM 0.00 0.0 M M M
11/12/2017 8:00 AM 0.00 0.0 M M M
11/13/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00
11/14/2017 8:00 AM 0.32 0.0 0.00 0.0 0.00 Still just water falling.
11/15/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00
11/16/2017 8:00 AM T 0.0 0.00 0.0 0.00
11/17/2017 8:00 AM 0.43 0.0 0.00 0.0 0.00 We've had many nights below freezing so I'm using the outer cylinder only. No dew or frost today. 0.43"
11/18/2017 8:00 AM 0.00 M M M M
11/19/2017 9:00 AM 0.24 M M M M
11/20/2017 8:00 AM 0.08 T T T T 0.08" from yesterday morning's rain. And then there were some scattered white granules on the ground and my car. First trace of snow for the season.
11/21/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00 Frost on gauge
11/22/2017 8:13 AM 0.02 0.0 0.00 0.0 0.00 Collected in the rain.
11/23/2017 8:00 AM 0.57 M M M M block of ice in the 4" cylinder. melted it by the oven. 0.57"
11/24/2017 8:00 AM 0.00 0.0 M M M
11/25/2017 8:00 AM 0.00 0.0 M M M
11/26/2017 8:00 AM 0.00 0.0 M M M
11/27/2017 8:00 AM T 0.0 0.00 0.0 0.00 Only marking it as a trace because I looked out the window and saw snow falling. Nothing stuck around on the ground.
11/28/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00
11/29/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00 Nothing in the gauge the the ground was all wet.
11/30/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00
12/1/2017 8:00 AM 0.08 0.0 0.00 0.0 0.00 lightly rained overnight.
12/2/2017 8:00 AM 0.00 0.0 M M M
12/3/2017 8:00 AM 0.00 0.0 M M M
12/4/2017 8:00 AM 0.00 0.0 M M M
12/5/2017 8:00 AM 0.00 0.0 M M M
12/6/2017 7:27 AM 0.71 M M M M
12/7/2017 8:00 AM 0.00 0.0 M M M
12/8/2017 8:00 AM 0.00 0.0 0.00 0.0 0.00
12/9/2017 8:00 AM 0.00 0.0 M M M
12/10/2017 8:00 AM 0.69 M M M M Fell as 7 or 8 inches of snow
12/11/2017 8:00 AM 0.00 0.0 M M M
12/12/2017 8:00 AM T M M M M a few flakes in the bottom of the gauge and on my windshield.
12/13/2017 8:00 AM 0.27 M M M M There was a quarter inch of solid ice in the bottom of the gauge this morning. I capped it to prevent evaporation/sublimation and took it inside to melt. The measurement will come after work. UPDATE: 0.27"
12/14/2017 8:00 AM 0.00 0.0 M M M
12/15/2017 8:00 AM 0.00 0.0 M M M No precip, but a bit of frost.
12/16/2017 8:00 AM T T M M M a small pile of flakes in the bottom. melted down to exactly one drop of water.
12/17/2017 8:00 AM 0.00 0.0 M M M
12/18/2017 8:00 AM 0.00 0.0 M M M
12/19/2017 8:00 AM 0.02 T M M M Mostly from flurries yesterday morning and some freezing rain in the evening.
12/20/2017 8:00 AM 0.00 0.0 0.00 M M
12/21/2017 8:00 AM 0.00 0.0 0.00 M M
12/22/2017 8:00 AM 0.02 M M M M A very light, but even coating on the ground. I don't have anything to measure tenths of an inch, but it was less than a quarter inch.
12/23/2017 8:23 AM 0.32 M M M M A crust of ice from freezing rain on top of the snow. The gauge was all iced over as well - but not thick enough to measure. All melted down, it was 0.32" of water.
12/24/2017 8:00 AM 0.60 M M M M It took some chipping this morning to get the cylinder free. Melted down to 0.60"
12/25/2017 8:13 AM 0.39 M M M M I added 1.01" of hot water to melt the snow. That resulted in 1.40" of total melt. Subtraction yields 0.39" melted snow. I was about 3" of snow in the gauge.
1/2/2018 8:00 AM 0.00 0.0 M M M frost, but no precip
1/3/2018 8:00 AM 0.00 0.0 0.00 M M
1/4/2018 10:00 AM 0.20 M M M M Probably about 3" of new snow, but that's just an eyeball guess, no ruler involved. Snow started around 7am.
1/5/2018 8:00 AM 1.54 M M M M I had to swap out the cylinder at 3:45 yesterday afternoon as it was almost full. That melted down to 1.01". This morning's melt was 0.52 for a daily total of 1.54"
1/6/2018 8:00 AM 0.00 M M M M
1/7/2018 8:00 AM 0.00 0.0 M M M
1/8/2018 8:00 AM 0.00 0.0 M M M
1/9/2018 8:00 AM T T T M M Less than a coating.
1/10/2018 8:00 AM 0.00 0.0 0.00 M M scatter frost on the gauge this morning
1/11/2018 8:00 AM 0.00 0.0 0.00 M M
1/12/2018 8:00 AM 0.00 0.0 0.00 M M Lots of dew on the outside of the gauge, but nothing inside it.
1/13/2018 8:00 AM 0.90 M M M M
1/14/2018 8:00 AM 0.00 0.0 M M M
1/15/2018 8:00 AM 0.00 0.0 M M M
1/16/2018 8:00 AM 0.00 0.0 0.00 M M
1/17/2018 7:58 AM 0.16 M M M M About 2-3" of snow in the tube. Really melted down.
1/18/2018 8:00 AM 0.22 M M M M There was a big chunk of ice in the bottom. It took forever to melt out.
1/19/2018 8:00 AM 0.00 0.0 0.00 M M
1/20/2018 8:00 AM 0.00 M M M M
1/21/2018 8:00 AM 0.00 0.0 M M M
1/22/2018 8:13 AM 0.01 0.0 0.00 M M Raining, but just barely. Maple sap is running already!
1/23/2018 8:00 AM 0.16 M M M M serious glaze of ice on everything. I had to chip out the gauge to take it inside to let it melt. I'm so happy I have two outer cylinders so I can just swap.
1/24/2018 8:00 AM 0.85 M M M M solid block of ice in the bottom of the gauge
1/25/2018 8:00 AM 0.00 0.0 0.00 M M
1/26/2018 8:00 AM 0.00 0.0 0.00 M M
1/27/2018 8:00 AM 0.00 0.0 0.00 M M
1/28/2018 8:00 AM 0.02 0.0 0.00 M M and a heavy coat of dew on the outside
1/29/2018 8:00 AM 0.00 0.0 0.00 M M a few frost crystals, but not much
1/30/2018 8:00 AM T T T M M just a few white streaks on the driveway
1/31/2018 8:00 AM 0.00 0.0 0.00 M M There were a few flurries in the air when I emptied the gauge yesterday, but nothing was sticking.
2/1/2018 8:00 AM 0.01 M M M M An even light coating. Less than 1/4", maybe even less than 0.1". Not enough confidence in the measurement to actually enter it as a measurement.
2/2/2018 8:00 AM 0.30 0.0 0.00 M M came down as liquid overnight but froze in the morning. glaze on everything.
2/3/2018 8:00 AM 0.00 0.0 M M M
2/4/2018 8:00 AM 0.00 0.0 M M M
2/5/2018 8:00 AM 0.55 0.0 0.00 M M almost all of the rain was overnight.
2/6/2018 8:00 AM 0.00 0.0 0.00 M M
2/7/2018 8:00 AM T T T M M Some flurries yesterday morning. Looked pretty in the sky, but didn't amount to much.
2/8/2018 8:00 AM 0.75 M M M M
2/9/2018 8:00 AM 0.00 0.0 0.00 M M very frosty!
2/10/2018 8:00 AM 0.00 M M M M
2/11/2018 8:11 AM 0.44 0.0 0.00 M M
2/12/2018 8:00 AM 0.79 0.0 0.00 M M The rain managed to melt away all of the snow except for where it was piled by plowing/shoveling/blowing.
2/13/2018 8:00 AM 0.00 0.0 0.00 M M
2/14/2018 8:00 AM 0.00 0.0 0.00 M M
2/15/2018 8:00 AM 0.00 0.0 0.00 M M no precip but a nice coating of dew
2/16/2018 8:25 AM 0.04 M M M M lightly drizzling while I measured.
2/17/2018 8:00 AM T 0.0 0.00 0.0 M just the last of the drizzle from yesterday morning
2/18/2018 8:00 AM 0.61 M M M M possibly over topped
2/19/2018 8:00 AM 0.00 M M M M
2/20/2018 8:00 AM 0.04 0.0 0.00 M M
2/21/2018 8:00 AM 0.00 0.0 0.00 M M lots of dew, but nothing inside the inner cylinder
2/22/2018 8:00 AM 0.00 0.0 0.00 M M
2/23/2018 8:00 AM 0.10 M M M M
2/24/2018 8:00 AM 0.08 0.0 0.00 M M
2/25/2018 8:46 AM 0.06 M M M M At least some of the precip was frozen in the bottom of the gauge.
2/26/2018 8:00 AM 0.41 0.0 0.00 M M
2/27/2018 8:00 AM 0.00 0.0 0.00 M M
2/28/2018 8:00 AM 0.00 0.0 0.00 M M There was a little water in the gauge, but I think it was just collected dew. The ground was totally dry, but my car also had some dew on it.
3/1/2018 8:00 AM 0.01 0.0 0.00 M M Roads were wet overnight, so I think it really did rain, a tiny bit.
3/2/2018 8:30 AM 0.35 0.0 0.00 M M Raining and windy.
3/3/2018 8:00 AM 1.22 M M M M Some wind blown debris ended up in the gauge, including a very small pebble. It did not float.
3/4/2018 8:00 AM 0.00 M M M M
3/5/2018 8:00 AM 0.08 M M M M might have lost some to evaporation while waiting for the snow to melt
3/6/2018 8:00 AM 0.00 0.0 0.00 M M
3/7/2018 8:00 AM 0.00 0.0 0.00 M M Snow flakes started flying about 10 minutes after today's reading.
3/8/2018 11:30 AM 1.30 M 1.30 M 1.30 Gauge was hugely overtopped. So I took a core instead from undisturbed snow on what was the day before bare grass. 1.30" precip amount from core sample because of overtopping.
3/9/2018 8:00 AM T T M M M flakes in the air on & off, but nothing serious.
3/10/2018 8:00 AM T M M M M
3/11/2018 8:00 AM T T M M M I think it was a trace, but it might have just been blowing down off trees and buildings.
3/12/2018 8:00 AM 0.00 0.0 0.00 M M
3/13/2018 9:43 AM 0.44 M M M M Sticky, nasty snow. Probably around 2".
3/14/2018 8:00 AM 1.10 M M M M I had to swap out the outer tube 3 times to keep the gauge from overtopping. All melted down and added up it's 1.10". I couldn't even begin to guess how much total snow fell.
3/15/2018 8:00 AM 0.02 T M M M
3/16/2018 8:00 AM 0.00 0.0 0.00 M M
3/17/2018 8:00 AM 0.00 0.0 M M M
3/18/2018 8:00 AM 0.00 0.0 M M M
3/19/2018 8:00 AM 0.00 0.0 M M M
3/20/2018 8:00 AM 0.00 0.0 0.00 M M
3/21/2018 8:00 AM 0.00 0.0 0.00 M M
3/22/2018 8:20 AM 0.13 M M M M
3/23/2018 8:00 AM 0.08 M M M M
3/24/2018 8:00 AM 0.00 M M M M
3/25/2018 8:00 AM 0.10 M M M M
3/26/2018 8:00 AM T T T M M Frosty, but empty gauge. Marking as T because I saw some snow in the air during the day yesterday.
3/27/2018 8:00 AM 0.00 0.0 M M M Frost, but no precip.
3/28/2018 8:00 AM 0.01 0.0 0.00 M M Ground was wet this morning, standing water on the roof of the car. I think it was legit rain over night.
3/29/2018 8:00 AM 0.00 0.0 0.00 M M
3/30/2018 8:19 AM 0.03 0.0 0.00 M M It was raining when I measured. It must not have been raining long to only be 0.03".
3/31/2018 8:00 AM 0.02 0.0 0.00 M M
4/1/2018 8:00 AM 0.00 0.0 0.00 M M
4/2/2018 8:25 AM 0.01 M M M M Snowing while I collected the gauge.
4/3/2018 8:00 AM 0.08 M M M M Frost on the outside of the gauge this morning.
4/4/2018 8:16 AM 0.51 0.0 0.00 M M Wrapping up raining as I was checking the gauge.
4/5/2018 8:00 AM 0.19 0.0 0.00 0.0 0.00 Crazy wind overnight
4/6/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
4/7/2018 8:00 AM 0.50 M M 0.0 0.00 it snowed pretty heavily all afternoon but not much stuck and it was all gone by morning.
4/8/2018 8:00 AM 0.01 M M M M no sign of dew so it must be the last of the rain from yesterday morning.
4/9/2018 8:00 AM T T 0.00 0.0 0.00 There were a few flakes in the bottom of the gauge
4/10/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
4/11/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 dew on gauge
4/12/2018 8:00 AM 0.00 0.0 M 0.0 0.00 nothing on the gauge, but frost on my car.
4/13/2018 8:00 AM 0.14 0.0 0.00 0.0 0.00
4/14/2018 8:00 AM 0.00 M M M M
4/21/2018 8:00 AM 0.00 M M M M
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 8:00 AM 0.04 0.0 0.00 0.0 0.00 It was raining and getting harder while I measured. I expect a big number tomorrow.
4/26/2018 8:21 AM 0.75 0.0 0.00 0.0 0.00 It was still lightly raining.
4/27/2018 8:00 AM T 0.0 0.00 0.0 0.00 Just the dregs of yesterday morning's rain
4/28/2018 8:00 AM 0.41 0.0 0.00 0.0 0.00
4/29/2018 8:53 AM 0.02 0.0 0.00 0.0 0.00 lightly drizzling
4/30/2018 8:00 AM 0.17 0.0 0.00 0.0 0.00
5/1/2018 8:00 AM 0.10 0.0 0.00 0.0 0.00
5/2/2018 8:00 AM T 0.0 0.00 0.0 0.00
5/3/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
5/4/2018 8:19 AM T 0.0 0.00 0.0 0.00 Rain was just getting started
5/5/2018 8:00 AM 0.01 0.0 0.00 0.0 0.00
5/6/2018 8:24 AM 0.02 0.0 0.00 0.0 0.00 lightly raining
5/7/2018 8:00 AM 0.62 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 Accidentally hit the gauge with the sprinkler. 0.14" of irrigation. But no precipitation.
5/10/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
5/11/2018 8:00 AM T 0.0 0.00 0.0 0.00 Gauge was dry, but I was dripped on while commuting yesterday.
5/12/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
5/13/2018 8:00 AM 0.11 0.0 0.00 0.0 0.00
5/14/2018 8:00 AM T 0.0 0.00 0.0 0.00 There was a tiny bit of water pooled in bottom of the gauge. No signs of dew on the top of the gauge or on plants, ground, or cars. So I'm calling it a Trace. I was away from the house yesterday so I don't know what happened there, but I did get a few light raindrops on my windshield, so I know there were showers around.
5/15/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
5/16/2018 8:00 AM 0.69 0.0 0.00 0.0 0.00 It was about at 0.20 when I got home from work at 5:30. The rest came in the evening/overnight.
5/17/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
5/18/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
5/19/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
5/20/2018 8:00 AM 0.30 0.0 0.00 0.0 0.00
5/21/2018 8:00 AM 0.07 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 0.04 0.0 0.00 0.0 0.00
5/24/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 light dew on the gauge. No precip. 1 maple seed helicopter.
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 9:00 AM 0.15 0.0 0.00 0.0 0.00
5/28/2018 9:55 AM 0.09 0.0 0.00 0.0 0.00 misting while I measured
5/29/2018 8:00 AM T 0.0 0.00 0.0 0.00 light coating of dew on the gauge. Not enough dew to account for the moisture in the bottom.
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 light dew today
6/1/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
6/2/2018 8:00 AM 0.03 0.0 0.00 0.0 0.00
6/3/2018 8:00 AM 0.06 0.0 0.00 0.0 0.00
6/4/2018 8:10 AM 0.06 0.0 0.00 0.0 0.00 lightly raining
6/5/2018 8:00 AM 0.32 0.0 0.00 0.0 0.00
6/6/2018 8:00 AM 0.02 0.0 0.00 0.0 0.00
6/7/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 some condensation on the inside, but no precip.
6/8/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
6/9/2018 8:00 AM 0.01 0.0 0.00 0.0 0.00 It really did rain in mid afternoon. Way more at my office in Westford, but I guess it just clipped the edge at home.
6/10/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
6/11/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
6/12/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
6/13/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
6/14/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 Too bad we didn't get any. It'd be nice to wash the pollen away.
6/15/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 There was a trace in the gauge, but no other signs of precipitation. And there was heavy dew on my car. So I'm leaving today as a 0.
6/16/2018 8:00 AM T 0.0 0.00 0.0 0.00
6/17/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
6/18/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
6/19/2018 8:00 AM 0.64 0.0 0.00 0.0 0.00 0.47 of it was from the storm from 6:30-7:00pm. The rest came in a second band overnight.
6/20/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
6/23/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
6/24/2018 8:00 AM 0.05 0.0 0.00 0.0 0.00
6/25/2018 8:00 AM 0.52 0.0 0.00 0.0 0.00
6/26/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
6/27/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
6/28/2018 8:23 AM 0.68 0.0 0.00 0.0 0.00 Out reading the gauge in a deluge.
6/29/2018 8:00 AM 0.57 0.0 0.00 0.0 0.00
6/30/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
7/1/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 no water, one cooked bug
7/2/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
7/3/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
7/4/2018 8:00 AM 0.09 0.0 0.00 0.0 0.00
7/5/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
7/6/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
7/7/2018 8:00 AM 0.21 0.0 0.00 0.0 0.00
7/8/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
7/9/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
7/10/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
7/11/2018 8:00 AM 0.01 0.0 0.00 0.0 0.00 We need rain, and this isn't enough to cut it.
7/12/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
7/13/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
7/14/2018 8:00 AM 0.00 0.0 M M M
7/15/2018 8:00 AM 0.17 0.0 0.00 0.0 0.00 The rain started a little before 10pm and lasted under an hour. There was probably at least one more band over night.
7/16/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
7/17/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
7/18/2018 8:00 AM 1.48 0.0 0.00 0.0 0.00 rain started around 2. my Cambodian neighbor said it was like a monsoon!
7/19/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
7/20/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 light dew on the top of the gauge
7/21/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
7/22/2018 8:13 AM 0.03 0.0 0.00 0.0 0.00
7/26/2018 8:00 AM 0.78 0.0 0.00 0.0 0.00 Must have rained buckets over night... slept right through it. The gauge was empty when I got home around 6:30.
7/27/2018 8:00 AM 0.26 0.0 0.00 0.0 0.00
7/28/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 some condensation in the gauge but no other sign of precip
7/29/2018 8:00 AM 0.00 0.0 M M M
7/30/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 Heavy coat of dew on my car, but nothing on the gauge.
7/31/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 light coating of dew on only the top surface of the gauge
8/1/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
8/2/2018 8:00 AM 0.01 0.0 0.00 0.0 0.00 Yes, it really did rain. I saw some on the windows.
8/3/2018 8:00 AM 0.13 0.0 0.00 0.0 0.00
8/4/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 I don't know how, but apparently all the rain missed us.
8/5/2018 8:00 AM 0.38 0.0 0.00 0.0 0.00
8/6/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 heavy coating of dew this morning, but nothing in the gauge.
8/7/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
8/8/2018 8:00 AM 0.08 0.0 0.00 0.0 0.00
8/9/2018 8:00 AM 0.16 0.0 0.00 0.0 0.00
8/10/2018 8:00 AM 0.02 0.0 0.00 0.0 0.00
8/11/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
8/12/2018 8:00 AM 1.67 0.0 0.00 0.0 0.00
8/13/2018 8:00 AM 0.10 0.0 0.00 0.0 0.00 We barely get anything and they get 8 inches over at the coast? Crazy. Really just a tenth.
8/14/2018 8:00 AM 0.20 0.0 0.00 0.0 0.00 I should have put down grass seed last week.
8/15/2018 8:00 AM 0.59 0.0 0.00 0.0 0.00 Some really heavy, but short bursts of rain last evening. 0.59"
8/16/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 light dew on the gauge
8/17/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 dew on gauge
8/18/2018 6:30 AM 1.47 0.0 0.00 0.0 0.00 Just over one inch was from the late afternoon thunderstorm. The rest came from a band overnight that woke me up.
8/24/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 heavy dew on plastic and metal objects. There was actually some water in the bottom of the gauge, but I'm pretty sure it was just condensation. No water on the driveway or street.
8/25/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 some dew on the gauge
8/26/2018 8:00 AM 0.00 0.0 M M M
8/27/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 just a little dew on the gauge
8/28/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 very light dew
8/29/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 It didn't even cool off enough overnight to put dew on the gauge. :(
8/30/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
8/31/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
9/1/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
9/2/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
9/3/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
9/4/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
9/5/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 light dew on the gauge and my car
9/6/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
9/7/2018 8:00 AM 0.41 0.0 0.00 0.0 0.00 precip from a late afternoon squall followed by a couple hours of light showers.
9/8/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
9/9/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
9/13/2018 5:00 PM 0.26 0.0 0.00 0.0 0.00
9/16/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 dew on and in the gauge. probably enough to make 0.005" but I don't think it was precip
9/17/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
9/18/2018 7:56 AM 0.94 0.0 0.00 0.0 0.00 still raining
9/19/2018 8:00 AM 1.22 0.0 0.00 0.0 0.00 It came down really hard for a while in the morning, but the afternoon was clear. 1.22" today plus yesterday's 0.94 makes for a 2.16 storm total.
9/20/2018 8:00 AM T 0.0 0.00 0.0 0.00 dew on the gauge. a few drops in it. only reason for the T is that I felt it misting yesterday.
9/21/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 dew on the gauge
9/22/2018 8:00 AM 0.02 0.0 0.00 0.0 0.00
9/23/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
9/24/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00 dew on gauge & everything else. the ground was wet enough I was surprised to find the gauge empty.
9/25/2018 8:00 AM 0.00 0.0 0.00 0.0 0.00
9/26/2018 8:00 AM 0.99 0.0 0.00 0.0 0.00 nothing overflowed into the outer tube. lots of fog, condensation on the outside of all windows
9/27/2018 8:00 AM 0.78 0.0 0.00 0.0 0.00 I think it all came down between 9 and 1 overnight.
9/28/2018 8:16 AM 0.06 0.0 0.00 0.0 0.00 Raining while I measured. I'm surprised it was only 0.06" since looking out the window earlier it looked like it was really coming down.
9/29/2018 8:00 AM 0.03 0.0 0.00 0.0 0.00
9/30/2018 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
9/30/2017 10/01/2017 8:00 AM 2 0.16 0.0 0.00
10/2/2017 10/04/2017 8:00 AM 3 0.00 0.0 0.00
12/26/2017 1/01/2018 8:00 AM 7 0.26 M M I'm guessing quite a bit was lost to sublimation.
4/15/2018 4/20/2018 4:40 PM 6 2.86 0.0 0.00
6/21/2018 6/22/2018 8:00 AM 2 0.07 0.0 0.00
7/23/2018 7/25/2018 8:17 AM 3 0.59 0.0 0.00
8/19/2018 8/23/2018 8:00 AM 5 1.19 0.0 0.00
9/10/2018 9/12/2018 5:35 PM 3 1.79 0.0 0.00
9/14/2018 9/15/2018 8:00 AM 2 0.00 0.0 0.00



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