Station Overview Station Location
Station Number MA-SF-1 Latitude 42.357019
Station Name Boston 0.5 WSW Longitude -71.067142
County Suffolk Elevation (ft) 43



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 4.26 5.38 31 1.79 16 3.59 15 5 5 2 0.0 0 0
Nov 17 4.46 1.62 30 0.45 15 1.17 15 4 6 4 0.0 0 0
Dec 17 4.27 1.75 31 0.67 12 1.08 19 6 3 2 0.0 0 1
Jan 18 3.68 2.84 29 0.82 12 2.02 17 5 3 3 1.5 1 7
Feb 18 3.61 2.86 27 0.91 18 1.95 9 3 4 1 0.0 0 1
March 18 4.66 4.35 31 0.44 15 3.91 16 6 5 2 0.2 1 3
April 18 4.31 4.93 30 3.86 16 1.07 14 5 9 1 0.0 0 0
May 18 3.76 1.71 31 0.98 18 0.73 13 4 5 1 0.0 0 0
June 18 4.07 2.78 30 1.07 15 1.71 15 5 3 3 0.0 0 0
July 18 3.81 3.14 30 2.50 14 0.64 16 6 5 0 0.0 0 0
Aug 18 3.68 4.06 31 1.22 18 2.84 13 4 4 0 0.0 0 0
Sept 18 3.70 4.63 30 4.60 16 0.03 14 4 10 2 0.0 0 0
Water Year Totals: 48.27" 40.05" 361 days 19.31" 185 20.74" 176 days 57 62 days 21 days 1.7" 2 days 12 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 **
10/2/2017 0.54
10/3/2017 T
10/4/2017 0.00
10/5/2017 0.00
10/6/2017 0.00
10/7/2017 **
10/8/2017 **
10/9/2017 **
10/10/2017 0.36
10/11/2017 0.00
10/12/2017 0.00
10/13/2017 0.00
10/14/2017 **
10/15/2017 **
10/16/2017 0.15
10/17/2017 T
10/18/2017 0.00
10/19/2017 0.00
10/20/2017 0.00
10/21/2017 **
10/22/2017 **
10/23/2017 0.00
10/24/2017 0.05
10/25/2017 0.79
10/26/2017 0.77
10/27/2017 0.15
10/28/2017 **
10/29/2017 **
10/30/2017 2.54
10/31/2017 0.03
11/1/2017 T
11/2/2017 0.00
11/3/2017 0.00
11/4/2017 **
11/5/2017 **
11/6/2017 0.01
11/7/2017 0.04
11/8/2017 0.10
11/9/2017 0.00
11/10/2017 **
11/11/2017 **
11/12/2017 **
11/13/2017 0.03
11/14/2017 0.11
11/15/2017 T
11/16/2017 T
11/17/2017 0.18
11/18/2017 **
11/19/2017 **
11/20/2017 0.35
11/21/2017 0.01
11/22/2017 0.01
11/23/2017 **
11/24/2017 **
11/25/2017 **
11/26/2017 **
11/27/2017 0.78
11/28/2017 0.00
11/29/2017 T
11/30/2017 0.00
12/1/2017 0.06
12/2/2017 **
12/3/2017 **
12/4/2017 0.00
12/5/2017 0.00
12/6/2017 0.60
12/7/2017 T
12/8/2017 0.00
12/9/2017 **
12/10/2017 **
12/11/2017 0.46
12/12/2017 0.00
12/13/2017 0.01
12/14/2017 **
12/15/2017 0.00
12/16/2017 **
12/17/2017 **
12/18/2017 T
12/19/2017 0.00
12/20/2017 0.00
12/21/2017 0.00
12/22/2017 T
12/23/2017 **
12/24/2017 **
12/25/2017 **
12/26/2017 0.62
12/27/2017 0.00
12/28/2017 **
12/29/2017 0.00
12/30/2017 **
12/31/2017 **
Day of YearDaily PrcpMultiday Prcp
1/1/2018 **
1/2/2018 T
1/3/2018 0.00
1/4/2018 **
1/5/2018 **
1/6/2018 **
1/7/2018 **
1/8/2018 0.73
1/9/2018 T
1/10/2018 0.00
1/11/2018 0.00
1/12/2018 T
1/13/2018 **
1/14/2018 **
1/15/2018 **
1/16/2018 1.19
1/17/2018 M
1/18/2018 M
1/19/2018 0.00
1/20/2018 **
1/21/2018 **
1/22/2018 0.10
1/23/2018 0.04
1/24/2018 0.68
1/25/2018 0.00
1/26/2018 0.00
1/27/2018 **
1/28/2018 **
1/29/2018 0.00
1/30/2018 0.10
1/31/2018 T
2/1/2018 0.00
2/2/2018 0.24
2/3/2018 **
2/4/2018 **
2/5/2018 0.51
2/6/2018 0.00
2/7/2018 0.00
2/8/2018 0.58
2/9/2018 0.00
2/10/2018 **
2/11/2018 **
2/12/2018 0.81
2/13/2018 0.00
2/14/2018 0.00
2/15/2018 T
2/16/2018 0.01
2/17/2018 0.00
2/18/2018 0.00
2/19/2018 0.00
2/20/2018 0.00
2/21/2018 M
2/22/2018 0.00
2/23/2018 0.08
2/24/2018 **
2/25/2018 **
2/26/2018 0.63
2/27/2018 0.00
2/28/2018 0.00
3/1/2018 0.00
3/2/2018 0.25
3/3/2018 **
3/4/2018 **
3/5/2018 1.56
3/6/2018 0.00
3/7/2018 0.00
3/8/2018 **
3/9/2018 1.35
3/10/2018 **
3/11/2018 **
3/12/2018 0.00
3/13/2018 **
3/14/2018 0.99
3/15/2018 0.03
3/16/2018 0.00
3/17/2018 **
3/18/2018 **
3/19/2018 0.00
3/20/2018 0.00
3/21/2018 0.00
3/22/2018 0.14
3/23/2018 T
3/24/2018 **
3/25/2018 **
3/26/2018 0.01
3/27/2018 0.00
3/28/2018 0.01
3/29/2018 0.00
3/30/2018 0.01
3/31/2018 T
Day of YearDaily PrcpMultiday Prcp
4/1/2018 0.00
4/2/2018 0.00
4/3/2018 0.09
4/4/2018 0.48
4/5/2018 0.17
4/6/2018 0.00
4/7/2018 **
4/8/2018 **
4/9/2018 0.12
4/10/2018 0.00
4/11/2018 0.00
4/12/2018 **
4/13/2018 0.04
4/14/2018 **
4/15/2018 **
4/16/2018 0.47
4/17/2018 1.92
4/18/2018 0.02
4/19/2018 0.06
4/20/2018 0.16
4/21/2018 **
4/22/2018 **
4/23/2018 0.00
4/24/2018 0.00
4/25/2018 0.02
4/26/2018 0.94
4/27/2018 T
4/28/2018 **
4/29/2018 **
4/30/2018 0.44
5/1/2018 0.18
5/2/2018 0.00
5/3/2018 0.00
5/4/2018 0.03
5/5/2018 **
5/6/2018 **
5/7/2018 0.21
5/8/2018 T
5/9/2018 0.00
5/10/2018 0.01
5/11/2018 0.00
5/12/2018 **
5/13/2018 **
5/14/2018 0.20
5/15/2018 0.00
5/16/2018 0.73
5/17/2018 0.00
5/18/2018 0.00
5/19/2018 **
5/20/2018 **
5/21/2018 0.27
5/22/2018 0.00
5/23/2018 0.03
5/24/2018 0.00
5/25/2018 0.00
5/26/2018 **
5/27/2018 **
5/28/2018 **
5/29/2018 0.05
5/30/2018 0.00
5/31/2018 0.00
6/1/2018 0.00
6/2/2018 **
6/3/2018 **
6/4/2018 0.12
6/5/2018 0.65
6/6/2018 0.32
6/7/2018 T
6/8/2018 0.00
6/9/2018 **
6/10/2018 **
6/11/2018 0.00
6/12/2018 0.00
6/13/2018 0.00
6/14/2018 T
6/15/2018 T
6/16/2018 **
6/17/2018 **
6/18/2018 0.00
6/19/2018 0.10
6/20/2018 0.00
6/21/2018 0.00
6/22/2018 0.00
6/23/2018 **
6/24/2018 **
6/25/2018 0.44
6/26/2018 0.00
6/27/2018 0.00
6/28/2018 **
6/29/2018 1.15
6/30/2018 **
Day of YearDaily PrcpMultiday Prcp
7/1/2018 **
7/2/2018 0.00
7/3/2018 0.00
7/4/2018 **
7/5/2018 0.09
7/6/2018 0.00
7/7/2018 **
7/8/2018 **
7/9/2018 0.34
7/10/2018
7/11/2018 0.05
7/12/2018 0.00
7/13/2018 0.00
7/14/2018 **
7/15/2018 **
7/16/2018 0.05
7/17/2018 0.00
7/18/2018 1.84
7/19/2018 0.00
7/20/2018 0.00
7/21/2018 **
7/22/2018 **
7/23/2018 0.16
7/24/2018 0.15
7/25/2018 0.00
7/26/2018 0.11
7/27/2018 0.35
7/28/2018 **
7/29/2018 **
7/30/2018 0.00
7/31/2018 0.00
8/1/2018 0.00
8/2/2018 0.00
8/3/2018 **
8/4/2018 **
8/5/2018 **
8/6/2018 0.66
8/7/2018 0.00
8/8/2018 0.00
8/9/2018 0.44
8/10/2018 0.00
8/11/2018 **
8/12/2018 **
8/13/2018 1.79
8/14/2018 0.37
8/15/2018 0.02
8/16/2018 0.00
8/17/2018 0.00
8/18/2018 **
8/19/2018 **
8/20/2018 0.39
8/21/2018 0.00
8/22/2018 0.00
8/23/2018 0.39
8/24/2018 0.00
8/25/2018 **
8/26/2018 **
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 **
9/2/2018 **
9/3/2018 **
9/4/2018 0.00
9/5/2018 0.00
9/6/2018 0.00
9/7/2018 0.04
9/8/2018 **
9/9/2018 0.00
9/10/2018 0.00
9/11/2018 1.18
9/12/2018 0.03
9/13/2018 0.61
9/14/2018 0.01
9/15/2018 **
9/16/2018 **
9/17/2018 0.00
9/18/2018 0.21
9/19/2018 0.77
9/20/2018 T
9/21/2018 T
9/22/2018 **
9/23/2018 **
9/24/2018 0.03
9/25/2018 0.00
9/26/2018 1.43
9/27/2018 0.29
9/28/2018 0.03
9/29/2018 **
9/30/2018 **



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/3/2017 8:30 AM T M M M M Bright sunshine with seasonal temps expected. Currently 59° with pressure at 30.62" and rising.
10/4/2017 7:00 AM 0.00 0.0 M M M Temp: 54F, clear skies
10/5/2017 8:45 AM 0.00 0.0 M M M
10/6/2017 7:25 AM 0.00 0.0 M M M Partly Cloudy 62°F, pressure 30.06" Hg and rising. No significant precipitation is likely until later in the holiday weekend, possibly Columbus Day into Tuesday with a stationary front that is predicted to pull the remnants of Nate through southern New England.
10/11/2017 7:10 AM 0.00 0.0 M M M Temp: 63F, cloudy
10/12/2017 8:45 AM 0.00 0.0 M M M
10/13/2017 9:20 AM 0.00 0.0 M M M
10/17/2017 9:00 AM T M M M M Cooler temps today, currently at 45° with pressure at 30.28" and rising.
10/18/2017 7:30 AM 0.00 0.0 M M M Temp: 50F, clear skies
10/19/2017 7:30 AM 0.00 0.0 M M M Temp: 55F, clear skies
10/20/2017 7:30 AM 0.00 0.0 M M M Mostly clear, few cirrus 58°F, pressure 30.01" Hg and rising. Dry through the weekend with no precipitation expected until next week.
10/24/2017 8:30 AM 0.05 M M M M Heavy rain and winds expected later tonight. Currently warm with some spot showers and high humidity. Pressure at 29.98" and falling.
10/25/2017 7:15 AM 0.79 M M M M Temp: 69F, steady rain
10/26/2017 8:55 AM 0.77 M M M M Light rain shower in progress.
10/27/2017 3:00 PM 0.15 M M M M
10/31/2017 8:45 AM 0.03 M M M M Cool day with bright skies. Pressure is 29.92" and rising. Temps at 50°
11/1/2017 7:30 AM T M M M M Temp: 44F, chilly, clear skies
11/2/2017 8:40 AM 0.00 0.0 M M M
11/3/2017 7:35 AM 0.00 0.0 M M M Partly cloudy and warm 60°F, pressure 30.03" Hg and falling. Chance of scattered showers this afternoon with more substantial rain late weekend into Monday. Temperaturewise feeling more like fall by next week.
11/7/2017 8:30 AM 0.04 M M M M Light sprinkles during the overnight. Clearing out this morning with colder temps. Currently at 41°.
11/8/2017 7:45 AM 0.10 M M M M Current obs: Overcast 39°F, pressure 30.27" Hg and rising. Clearing later this morning with little chance of precipitation the rest of the week.
11/9/2017 8:45 AM 0.00 0.0 M M M
11/14/2017 8:45 AM 0.11 M M M M
11/15/2017 7:00 AM T M M M M Temp: 37F, clear and chilly
11/16/2017 8:00 AM T M M M M Temp: 45F, light drizzle
11/17/2017 7:40 AM 0.18 M M M M Mostly cloudy and breezy 39°F, pressure 29.83" Hg and rising. After some brief clearing today, more rain is expected over the weekend.
11/21/2017 9:20 AM 0.01 M M M M
11/22/2017 7:00 AM 0.01 M M M M Light rain at time of observation
11/28/2017 8:45 AM 0.00 0.0 M M M Cold temps today; currently at 28° pressure holding at 30.46"
11/29/2017 8:00 AM T M M M M Temp: 52F, cloudy
11/30/2017 8:45 AM 0.00 0.0 M M M
12/1/2017 9:05 AM 0.06 M M M M Rained early in the morning.
12/5/2017 8:30 AM 0.00 0.0 M M M Cold, overcast day. Temps at 40° and pressure is 30.34" and dropping.
12/6/2017 7:30 AM 0.60 M M M M Temp: 51F, cloudy
12/7/2017 8:00 AM T M M M M
12/8/2017 8:00 AM 0.00 0.0 M M M
12/12/2017 7:00 AM 0.00 0.0 M M M
12/13/2017 7:30 AM 0.01 0.0 M 0.0 M Temp: 22F, partly cloudy
12/19/2017 8:30 AM 0.00 0.0 M M M
12/20/2017 7:00 AM 0.00 0.0 M M M
12/21/2017 8:55 AM 0.00 0.0 M M M
12/22/2017 7:30 AM T T M T M Overcast with flurries/very light snow 24°F, pressure 30.37" Hg and falling. Snow/mix/rain today into Sat. More snow/mix expected late evening on Sun (Xmas Eve) into Christmas Day. Next report will be on Tue morning.
12/27/2017 8:45 AM 0.00 0.0 M 1.0 M
1/3/2018 7:45 AM 0.00 0.0 M 1.5 M Temp: 18F, partly cloudy
1/9/2018 7:55 AM T M M 10.5 M Mostly cloudy with clearing 34°F, pressure 29.95" Hg and rising. Quick squall with snow and/or rain last night produced the trace reported and already melted on surfaces. A lot of melting with the above freezing temperature yesterday contributed to the almost 1" less snow on ground. That will continue today when the max temperature will be near 40°F. Clearing this morning and clear tonight.
1/10/2018 7:30 AM 0.00 0.0 M 9.5 M Temp: 28F, clear skies
1/11/2018 7:30 AM 0.00 0.0 M 9.0 M Temp: 41F, cloudy
1/12/2018 7:50 AM T M M 2.5 M Overcast and light fog 53°F, pressure 30.04" Hg and falling. The reported snow on the ground was an average since the coverage is very spotty and melting quickly. Heavy rain expected later today with flash flooding possible. Rain ending late Sat morning with an extreme temperature drop accompanied by the cold front passage in the early afternoon. Flash freezing with some sleet or snow grains into the evening. The next chance of precipitation after the MLK holiday weekend, most likely in the form of snow, is Tuesday into Wednesday next week.
1/17/2018 11:00 AM M M M M M Problem with gauge, did not get accurate reading
1/18/2018 8:00 AM M T M 0.0 M Problem with gauge, did not get accurate reading
1/19/2018 7:40 AM 0.00 0.0 M M M Partly cloudy 25°F, pressure 29.95" Hg and rising. Although 0.0" was recorded, a light dusting of snow may have occurred last night with a small area of flurries that moved through MA. No precipitation through the weekend with milder temperatures. Next chance for precip is Monday night into Tuesday next week.
1/23/2018 8:45 AM 0.04 M M M M Cold, raw weather with heavier rain expected later in the day. Currently at 36° and pressure at 29.86" and falling.
1/24/2018 7:40 AM 0.68 0.0 M 0.0 M Temp: 39F, partly cloudy
1/25/2018 8:45 AM 0.00 0.0 M 0.0 M
1/26/2018 7:40 AM 0.00 0.0 M 0.0 M Clear and cold 20°F, pressure 30.61" Hg and rising. Precipitation in the form of rain expected Saturday night into Sunday morning with mild temps over the weekend.
1/30/2018 8:45 AM 0.10 1.5 0.10 1.5 M Snow continues through the morning following overnight snow. Currently 21° and pressure at 29.91" and falling.
1/31/2018 7:20 AM T T M 1.0 M Temp: 19F, clear skies
2/1/2018 8:00 AM 0.00 0.0 M 0.5 M
2/2/2018 8:55 AM 0.24 T M 0.0 M Either mixed precip fell overnight or light snow that partially melted in gauge (gauge contents were slushy). Flat surfaces near gauge glazed in ice.
2/6/2018 8:45 AM 0.00 0.0 M 0.0 M Cold, dry day. Temps at 27° and pressure at 30.36" and rising.
2/7/2018 7:00 AM 0.00 0.0 M M M
2/8/2018 8:00 AM 0.58 T M T M Snow started mid-day yesterday accumulating to 1.5-2 in. before changing to rain several hours later. Hard freeze overnight, just a trace of snow/ice on ground.
2/9/2018 7:40 AM 0.00 0.0 M M M Clear and cold 23°F, pressure 30.50" Hg and rising. Clouds moving in by noon today with the chance of light snow overnight into Sat morning (accumulation less than 1"). More substantial precipitation in the form of rain moving into the area late Sat into Sun with possible amounts of an inch or more (melted).
2/13/2018 7:45 AM 0.00 0.0 M M M Quiet weather day today. 25° with slight winds. Pressure at 30.78" and rising.
2/14/2018 8:00 AM 0.00 0.0 M 0.0 M Temp: 34F, cloudy
2/15/2018 8:40 AM T 0.0 M 0.0 M
2/16/2018 7:35 AM 0.01 M M M M Moderate fog 51°F, pressure 29.53" Hg and falling. Light rain throughout the day today then clearing early evening and turning colder for Sat. Sat night into Sun some accumulation of snow is expected, then clearing Sun into Mon. Big warm up with around 60°F high temperatures by midweek.
2/17/2018 7:00 AM 0.00 0.0 M M M
2/18/2018 7:00 AM 0.00 0.0 M M M
2/19/2018 7:00 AM 0.00 0.0 M M M
2/20/2018 7:00 AM 0.00 0.0 M M M
2/21/2018 8:00 AM M 0.0 M 0.0 M Temp: 59F, cloudy, warm {EDIT: Observer reported 0.42 for new precip. QPE data and surrounding reports of 0.00's indicate this could be a date error or a multi-day report. Changed report of 0.42 to NA until observer can be contacted to verify. Submission Time Before EDIT: 2/21/2018 8:12 AM CoCoSTAFF DNT}
2/22/2018 9:45 AM 0.00 0.0 M 0.0 M
2/23/2018 7:00 AM 0.08 M M M M
2/27/2018 8:45 AM 0.00 0.0 M M M Clear, mild day today. Temps currently at 41°, moving toward the 50s later. Pressure at 30.29" and rising.
2/28/2018 7:00 AM 0.00 0.0 M 0.0 M Temp: 43F, clear skies with a few cirrus clouds
3/1/2018 8:40 AM 0.00 0.0 M 0.0 M
3/2/2018 7:45 AM 0.25 M M M M Overcast, moderate rain 37°F, pressure 29.39" Hg and falling. Heavy rain and winds at tropical storm strength expected today. Later today winds may reach Cat 1 hurricane strength, especially along the coast, with the possible addition of rain changing to sleet and/or wet snow. Coastal flooding is highly likely with the astronomical high tides and local street flooding is possible with the heavy rain. All precip should end by midday Saturday and clearing through the rest of the weekend.
3/6/2018 8:45 AM 0.00 0.0 M M M Cool day today with mix of clouds and sun. Temps at 34° with pressure at 30.06" and rising.
3/7/2018 8:45 AM 0.00 0.0 M M M Rain / snow mix just beginning to fall, but nothing measurable at this time. Storm moving in later this afternoon with heavy snow and rain expected. Currently 36° and pressure at 29.96"
3/15/2018 8:45 AM 0.03 0.0 M 7.0 M
3/16/2018 7:10 AM 0.00 0.0 M 3.0 M
3/20/2018 8:30 AM 0.00 0.0 M M M Some snow still on ground in patches. Cold temps; 26° with pressure holding at 29.94"
3/21/2018 7:15 AM 0.00 0.0 M 1.0 M Temp: 35F, overcast skies
3/22/2018 11:00 AM 0.14 0.2 M M M Light snow falling all morning, including at time of observation.
3/23/2018 7:30 AM T 0.0 M M M
3/27/2018 7:00 AM 0.00 0.0 M M M
3/28/2018 7:15 AM 0.01 0.0 M 0.0 M Temp: 40F, overcast
3/29/2018 8:10 AM 0.00 0.0 M 0.0 M
3/30/2018 7:30 AM 0.01 M M M M Overcast with light fog 53°F, pressure 29.66" Hg and falling. Light rain moving in mid-morning with the passage of a cold front. Sporadic light rain thru the Easter weekend and turning cooler.
3/31/2018 8:50 AM T M M M M Snowing while taking observation.
4/1/2018 7:00 AM 0.00 0.0 M M M
4/2/2018 7:00 AM 0.00 0.0 M M M
4/3/2018 7:40 AM 0.09 M M M M
4/4/2018 7:00 AM 0.48 M M M M Temp: 41F, drizzling and foggy
4/5/2018 7:45 AM 0.17 M M M M Clear 31°F, pressure 29.85" Hg and rising. No precipitation during the day today, but clouds moving in overnight with a warm front bringing wet snow during the morning tomorrow.
4/6/2018 7:40 AM 0.00 0.0 M M M Clear few cirrus 32°F, pressure 30.13" Hg and steady. Scattered precipitation by noon possible, likely starting as wet snow and quickly changing to a cold rain with little accumulation. More wet snow/cold rain possible on Saturday, with the bulk of the precipitation south of the city. Clearing the remainder of the weekend into Monday.
4/10/2018 11:45 AM 0.00 0.0 M M M Overcast and cold, chance of showers during the late afternoon into evening.
4/11/2018 7:20 AM 0.00 0.0 M 0.0 M Temp: 31F, cloudy
4/17/2018 7:40 AM 1.92 M M M M Clear with few fair wx cumulus, 43°F, pressure 29.49" Hg and steady. Turning cloudy about midday with the chance for passing showers later this afternoon into the evening.
4/18/2018 8:50 AM 0.02 0.0 M 0.0 M
4/19/2018 8:05 AM 0.06 0.0 M 0.0 M Rain shower in progress at time of ob.
4/20/2018 7:30 AM 0.16 M M M M
4/24/2018 7:45 AM 0.00 0.0 M M M Clear with few cirrus, mild 48°F, pressure 30.38" Hg and steady. Mostly sunny today but becoming cloudy later. Rain expected Wednesday, possibly heavy late in the day.
4/25/2018 7:00 AM 0.02 M M M M Temp: 51F, light rain
4/26/2018 8:50 AM 0.94 M M M M Showers all day yesterday... overnight showers ended within the past couple of hours.
4/27/2018 7:40 AM T M M M M Mostly sunny with thin cirrus 55°F, pressure 29.89" Hg and rising. Clouds will be moving in by midday with steady rain by late afternoon into the early evening. Clearing for Saturday and then a chance of rain Saturday night into Sunday and cooler for Sunday and Monday.
5/1/2018 9:25 AM 0.18 M M M M
5/2/2018 7:20 AM 0.00 0.0 M M M Temp: 69F, clear skies, beautiful day!
5/3/2018 8:45 AM 0.00 0.0 M M M
5/4/2018 9:25 AM 0.03 M M M M Some rain this morning and last evening.
5/8/2018 9:53 AM T M M M M
5/9/2018 7:10 AM 0.00 0.0 M M M Temp: 57F, clear skies
5/10/2018 9:45 AM 0.01 M M M M
5/11/2018 8:45 AM 0.00 0.0 M M M
5/15/2018 7:45 AM 0.00 0.0 M M M Current obs: Few clouds with patchy fog 61°F, pressure 29.82" Hg and steady. Warm and in the 80s by lunchtime with thunderstorms possible later in the afternoon into early evening.
5/16/2018 7:25 AM 0.73 M M M M Temp: 56F, partly cloudy
5/17/2018 7:30 AM 0.00 0.0 M M M Temp: 59F, hazy
5/18/2018 7:40 AM 0.00 0.0 M M M Mostly cloudy with few sunny breaks, 58°F, pressure 30.31" Hg and rising. Cool and cloudy today with a northeast wind. Rain moving in heavy at times on Saturday and clearing on Sunday.
5/22/2018 7:00 AM 0.00 0.0 M M M
5/23/2018 7:20 AM 0.03 M M M M Temp: 62F, partly cloudy
5/24/2018 7:30 AM 0.00 0.0 M M M Temp: 62F, slightly cloudy
5/25/2018 7:50 AM 0.00 0.0 M M M Current obs: Hazy sunshine 69°F, pressure 29.92" Hg and falling. Humidity building over the next 2 days with a frontal passage late Saturday and the possibility of heavy showers/thunderstorms. Showers continuing into Sunday and cooler. For Memorial Day scattered showers possible and warmer.
5/30/2018 7:00 AM 0.00 0.0 M M M Temp: 64F, partly cloudy
5/31/2018 8:50 AM 0.00 0.0 M M M
6/1/2018 7:50 AM 0.00 0.0 M M M Mostly cloudy 69°F, pressure 29.84" Hg and steady. Scattered showers today into Saturday. Clearing and cooler the rest of the weekend into next week.
6/5/2018 8:10 AM 0.65 M M M M Overcast with fog 53°F, pressure 29.69" Hg and steady. Some clearing before noon with isolated showers/thundershowers later. Cloudy but little chance of rain tomorrow.
6/6/2018 7:20 AM 0.32 M M M M Temp: 56F, hazy and overcast
6/7/2018 8:55 AM T M M M M
6/8/2018 7:40 AM 0.00 0.0 M M M Clear with few thin cirrus, 63°F, pressure 30.12" Hg and rising. Possibility of scattered showers later today and again Saturday nite into early Sunday, otherwise dry thru the weekend.
6/12/2018 7:55 AM 0.00 0.0 M M M Clear, few low clouds in the distance to the west, 63°F, pressure 30.15" Hg and steady. Very dry, dewpoint 46°F, becoming very humid by tomorrow morning. No rain expected until a cold front passage tomorrow (Wednesday) with widely scattered thunderstorms likely.
6/13/2018 7:30 AM 0.00 0.0 M 0.0 M Temp: 66F, mostly sunny
6/14/2018 8:45 AM T M M M M
6/15/2018 7:50 AM T M M M M Overcast with light rain/mist 57°F, pressure 29.89" Hg and rising. Rain showers should end midmorning. Some clearing during the afternoon and warmer. While the temps rise throughout the weekend no precipitation is forecast until early next week.
6/19/2018 8:00 AM 0.10 M M M M Partly cloudy, 75°F, pressure 29.70" Hg and rising. Currently humid (66°F) but falling throughout the day and gradual clearing. No precip expected over the next 24 h. Some damaging thunderstorms yesterday evening in the west and northwest suburbs of Boston.
6/20/2018 7:15 AM 0.00 0.0 M 0.0 M Temp: 68F, sunny
6/21/2018 8:45 AM 0.00 0.0 M M M
6/22/2018 7:25 AM 0.00 0.0 M M M Clear 65°F, pressure 30.01" Hg and rising, no precipitation expected for today. Over the weekend, showers are expected on Sat with more substantial rain, possibly thunderstorms, on Sunday.
6/26/2018 9:43 AM 0.00 0.0 M M M
6/27/2018 7:00 AM 0.00 0.0 M 0.0 M Temp: 65F, hazy
7/3/2018 7:30 AM 0.00 0.0 M M M Clear, light haze, warm, and humid, 76°F (dewpoint 72°F), pressure 30.06" Hg and steady. Remaining hazy, hot, and humid throughout the day, with spotty afternoon thundershowers early this evening. Same over the 4th of July.
7/6/2018 7:30 AM 0.00 0.0 M M M Partly cloudy and humid 80°F, pressure 29.88" Hg and falling. Showers and thundershowers expected by midmorning with the passage of a cold front today that will bring in cooler and drier air to the Boston area over the weekend. No precipitation expected the rest of the weekend.
7/11/2018 7:20 AM 0.05 0.0 M M M Temp: 71F, partly cloudy
7/12/2018 8:45 AM 0.00 0.0 M M M
7/13/2018 7:45 AM 0.00 0.0 M M M Partly–mostly cloudy 69°F, pressure 30.18" Hg. Next chance for precipitation Sat into Sun. Humidity and greater chance of thunderstorm increase early next week.
7/17/2018 7:35 AM 0.00 0.0 M M M Mostly clear, high thin cirrus, 76°F, pressure 29.93" Hg and falling. Extremely warm and humid today with thunderstorms beginning after midday and becoming more severe later in the day, including the possibility of localized flooding.
7/18/2018 7:15 AM 1.84 0.0 M 0.0 M Temp: 70F, partly cloudy, humid, dewpoint: 60F
7/19/2018 8:45 AM 0.00 0.0 M M M
7/20/2018 7:00 AM 0.00 0.0 M M M
7/24/2018 7:00 AM 0.15 M M M M
7/25/2018 7:00 AM 0.00 0.0 M 0.0 M Temp: 76F, Dewpoint: 66F, partly cloudy, humid
7/26/2018 8:45 AM 0.11 M M M M
7/27/2018 9:45 AM 0.35 0.0 M 0.0 M Clear skies, humid.
7/31/2018 7:49 AM 0.00 0.0 0.00 0.0 0.00 73°F
8/1/2018 7:46 AM 0.00 0.0 M 0.0 M
8/2/2018 8:45 AM 0.00 0.0 M M M
8/7/2018 7:44 AM 0.00 M M M M 77° F
8/8/2018 7:10 AM 0.00 0.0 M 0.0 M Temp: 75F, Dewpoint: 71F, partly cloudy, hazy, humid
8/9/2018 7:10 AM 0.44 0.0 M 0.0 M Temp: 70F, light rain
8/10/2018 9:00 AM 0.00 0.0 M 0.0 M Sunny, no clouds
8/14/2018 7:52 AM 0.37 M M M M Cloudy
8/15/2018 7:15 AM 0.02 0.0 M 0.0 M Temp: 69F, dewpoint: 67F, partly cloudy, humid
8/16/2018 8:45 AM 0.00 0.0 M M M
8/17/2018 9:10 AM 0.00 0.0 M 0.0 M Clear skies
8/21/2018 7:54 AM 0.00 M M M M 64F, cloudy
8/22/2018 7:30 AM 0.00 0.0 M M M Temp: 64F, light rain, humid, cloudy
8/23/2018 9:00 AM 0.39 M M M M Vast majority of precip during day 8/22.
8/24/2018 7:00 AM 0.00 0.0 M M M
8/28/2018 7:50 AM 0.00 M M M M
8/29/2018 7:00 AM 0.00 0.0 M 0.0 M Temp: 78F, clear skies, moon still visible, humid
8/30/2018 8:45 AM 0.00 0.0 M M M
8/31/2018 9:00 AM 0.00 0.0 M 0.0 M
9/5/2018 7:00 AM 0.00 0.0 M 0.0 M Temp: 68F, partly cloudy, humid
9/6/2018 8:45 AM 0.00 0.0 M M M
9/7/2018 8:50 AM 0.04 0.0 M 0.0 M Overcast
9/10/2018 8:02 AM 0.00 M M M M
9/11/2018 7:51 AM 1.18 M M M M Misting, foggy, 65°F.
9/12/2018 7:00 AM 0.03 0.0 M 0.0 M Temp: 69F, Dewpoint: 67F, overcast, humid
9/13/2018 7:10 AM 0.61 M M M M
9/14/2018 9:05 AM 0.01 0.0 M 0.0 M Cloudy
9/18/2018 8:05 AM 0.21 M M M M Drizzling, overcast. 72°F.
9/19/2018 7:15 AM 0.77 M M M M Temp: 59F, Dewpoint: 59F, cloudy
9/20/2018 9:50 AM T M M M M
9/21/2018 9:00 AM T 0.0 M 0.0 M
9/25/2018 7:49 AM 0.00 0.0 M 0.0 M
9/26/2018 7:00 AM 1.43 0.0 M 0.0 M Temp: 69F, cloudy, humid
9/27/2018 8:05 AM 0.29 0.0 M 0.0 M Temp: 58F, Dewpoint: 54F, partly cloudy
9/28/2018 7:00 AM 0.03 M M M M Light rain at time of ob



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
9/30/2017 10/02/2017 8:50 AM 3 0.54 M M Rained on Saturday morning/early afternoon. Found leaf in rain gauge. Definitely fall.
10/7/2017 10/10/2017 7:15 AM 4 0.36 M M
10/14/2017 10/16/2017 9:15 AM 3 0.15 M M Some raindrops while taking measurement.
10/21/2017 10/23/2017 9:30 AM 3 0.00 M M
10/28/2017 10/30/2017 7:00 AM 3 2.54 M M
11/4/2017 11/06/2017 7:00 AM 3 0.01 M M Very light rain on Sunday night
11/10/2017 11/13/2017 9:30 AM 4 0.03 M M
11/18/2017 11/20/2017 9:05 AM 3 0.35 M M Raining on Saturday afternoon/evening and on Sunday morning.
11/23/2017 11/27/2017 8:50 AM 5 0.78 M M Rained heavily on Wednesday.
12/2/2017 12/04/2017 9:50 AM 3 0.00 M M
12/9/2017 12/11/2017 8:50 AM 3 0.46 3.3 M Snowed on Saturday from mid-morning into evening. Some snowfall has melted since Saturday.
12/14/2017 12/15/2017 8:00 AM 2 0.00 0.0 M
12/16/2017 12/18/2017 9:20 AM 3 T M M Very light snowfall began approximately 5-10 minutes before taking measurement.
12/23/2017 12/26/2017 8:30 AM 4 0.62 1.5 M
12/28/2017 12/29/2017 7:35 AM 2 0.00 1.0 M Mostly cloudy and frigid 4°F, pressure 30.25" Hg and falling. No precipitation expected thru Friday. Chance of a dusting to an inch on Saturday, with more depending on the track of the system moving past to the south of southern NE. Clear and bitter cold expected thru the New Year.
12/30/2017 1/02/2018 2:00 PM 4 T 1.5 M
1/4/2018 1/08/2018 10:15 AM 5 0.73 11.4 M "Bomb cyclone" snowfall occurred on Thursday, 1/4. New snowfall measured at 8.9 inches as of this morning.
1/13/2018 1/16/2018 8:30 AM 4 1.19 0.0 M
1/20/2018 1/22/2018 9:00 AM 3 0.10 M M Began raining early this morning. Light drizzle at time of measurement.
1/27/2018 1/29/2018 8:50 AM 3 0.00 M M
2/3/2018 2/05/2018 10:15 AM 3 0.51 M M Rained off and on throughout Sunday.
2/10/2018 2/12/2018 9:00 AM 3 0.81 M M Raining on Saturday evening and throughout most of Sunday
2/24/2018 2/26/2018 8:45 AM 3 0.63 M M Rained most of the day and into the evening on Sunday.
3/3/2018 3/05/2018 8:50 AM 3 1.56 M M Precipitation mostly from Friday's storm. Some frozen precipitation also on Sunday night. Very light patches of snow on the ground at the time of the observation.
3/8/2018 3/09/2018 7:40 AM 2 1.35 3.0 M Current observation: Clear with few cirrocu 31°F, pressure 29.61" Hg and steady. Some snow flurries/squalls possible later today, then no precipitation expected over the weekend. The next chance for precip in the Boston area is Monday.
3/10/2018 3/12/2018 7:15 AM 3 0.00 0.0 M Temp: 32F, clear skies
3/13/2018 3/14/2018 7:00 AM 2 0.99 13.0 M Raingauge was full of snow, so melted equivalent reported is probably lower than actual.
3/17/2018 3/19/2018 9:05 AM 3 0.00 M M Some scattered frozen patches of snow.
3/24/2018 3/26/2018 8:45 AM 3 0.01 M M Some very light snow in mid afternoon on Sunday.
4/7/2018 4/09/2018 9:20 AM 3 0.12 M M Precipitation was from Friday evening, 4/6. Accumulation was initially frozen on morning of 4/9.
4/12/2018 4/13/2018 7:35 AM 2 0.04 M M Precip in gauge fell yesterday evening. Observation: Clear with thin cirrus far to the north and west, 56°F pressure 29.82" Hg and rising. Some clouds this afternoon but continued warm. Backdoor cold front late Saturday will move in turning temperatures colder with showers possibly mixing with frozen precip on Sunday and rain on Monday.
4/14/2018 4/16/2018 8:35 AM 3 0.47 M M Moderate rainfall while taking observation.
4/21/2018 4/23/2018 8:15 AM 3 0.00 M M
4/28/2018 4/30/2018 9:20 AM 3 0.44 M M Rained on Friday (afternoon/evening) and Sunday (morning/afternoon).
5/5/2018 5/07/2018 8:45 AM 3 0.21 M M Rained on Sunday evening
5/12/2018 5/14/2018 8:55 AM 3 0.20 M M Rained on Saturday.
5/19/2018 5/21/2018 8:40 AM 3 0.27 M M Rained off and on Saturday and some intense showers on Sunday afternoon.
5/26/2018 5/29/2018 7:55 AM 4 0.05 M M Current obs: Clear with with few clouds. 70°F, pressure 29.92" Hg and rising. Scattered clouds move in later this afternoon with a back-door cold front approaching from the north and the slight chance of a passing shower. Beyond today, dry the rest of the week.
6/2/2018 6/04/2018 7:00 AM 3 0.12 M M
6/9/2018 6/11/2018 7:20 AM 3 0.00 M M
6/16/2018 6/18/2018 8:45 AM 3 0.00 M M
6/23/2018 6/25/2018 7:00 AM 3 0.44 M M Thunderstorms in afternoon/early evening on both Saturday and Sunday. Lots of pollen in measurement beaker.
6/28/2018 6/29/2018 9:24 AM 2 1.15 M M Intense thunderstorms on Thursday morning and continuing rain in afternoon and early evening.
6/30/2018 7/02/2018 8:15 AM 3 0.00 M M
7/4/2018 7/05/2018 8:50 AM 2 0.09 M M
7/7/2018 7/09/2018 8:50 AM 3 0.34 M M Thunderstorms in early afternoon on Friday.
7/14/2018 7/16/2018 8:30 AM 3 0.05 M M Shower on Saturday evening
7/21/2018 7/23/2018 9:00 AM 3 0.16 M M Rained on Sunday afternoon/evening.
7/28/2018 7/30/2018 7:10 AM 3 0.00 0.0 M Temp: 71F, cirrus clouds
8/3/2018 8/06/2018 7:00 AM 4 0.66 M M Heavy storm on Saturday morning
8/11/2018 8/13/2018 7:30 AM 3 1.79 0.0 M Hazy and misty, scattered showers on Saturday
8/18/2018 8/20/2018 7:05 AM 3 0.39 0.0 M Temp: 63F, cloudy, slight drizzle
8/25/2018 8/27/2018 7:20 AM 3 0.00 0.0 M Temp: 70F, clear skies
9/1/2018 9/04/2018 7:57 AM 4 0.00 0.0 0.00 78 degrees (F).
9/8/2018 9/09/2018 7:00 AM 2 0.00 0.0 M
9/15/2018 9/17/2018 7:00 AM 3 0.00 0.0 0.00 Temp: 65F, Dewpoint: 64F,
9/22/2018 9/24/2018 7:15 AM 3 0.03 M M Temp: 52F, cloudy, windy
9/29/2018 10/01/2018 8:30 AM 3 0.26 0.0 0.00 Overcast



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