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 16 4.26 5.21 31 0.24 13 4.97 18 5 2 2 0.0 0 0
Nov 16 4.46 1.83 30 1.68 14 0.15 16 4 5 1 0.0 0 0
Dec 16 4.27 3.20 31 2.03 18 1.17 13 4 4 3 0.0 0 0
Jan 17 3.68 3.79 29 3.50 14 0.29 15 4 13 0 0.7 1 1
Feb 17 3.61 1.52 21 0.68 13 0.84 8 4 2 1 1.0 1 3
March 17 4.66 2.74 31 1.01 17 1.73 14 5 5 0 0.8 1 4
April 17 4.31 5.54 30 3.90 16 1.64 14 5 11 0 0.0 0 0
May 17 3.76 2.92 30 1.12 15 1.80 15 5 4 7 0.0 0 0
June 17 4.07 3.66 29 1.81 16 1.85 13 4 6 0 0.0 0 0
July 17 3.81 3.22 31 2.26 12 0.96 19 6 7 0 0.0 0 0
Aug 17 3.68 1.06 31 0.70 19 0.36 12 4 3 2 0.0 0 0
Sept 17 3.70 1.94 29 0.41 13 1.53 16 5 6 1 0.0 0 0
Water Year Totals: 48.27" 36.63" 353 days 19.34" 180 17.29" 173 days 55 68 days 17 days 2.5" 3 days 8 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
10/1/2016 **
10/2/2016 **
10/3/2016 0.71
10/4/2016 0.01
10/5/2016 0.00
10/6/2016 0.00
10/7/2016 0.00
10/8/2016 **
10/9/2016 **
10/10/2016 **
10/11/2016 1.07
10/12/2016 0.00
10/13/2016 0.00
10/14/2016 T
10/15/2016 **
10/16/2016 **
10/17/2016 0.00
10/18/2016 0.23
10/19/2016 0.00
10/20/2016 0.00
10/21/2016 **
10/22/2016 **
10/23/2016 **
10/24/2016 1.77
10/25/2016 T
10/26/2016 0.00
10/27/2016 0.00
10/28/2016 **
10/29/2016 **
10/30/2016 **
10/31/2016 1.42
11/1/2016 T
11/2/2016 0.00
11/3/2016 0.04
11/4/2016 0.08
11/5/2016 **
11/6/2016 **
11/7/2016 0.04
11/8/2016 0.00
11/9/2016 0.00
11/10/2016 0.00
11/11/2016 **
11/12/2016 **
11/13/2016 **
11/14/2016 0.00
11/15/2016 0.00
11/16/2016 1.11
11/17/2016 0.01
11/18/2016 **
11/19/2016 **
11/20/2016 **
11/21/2016 0.08
11/22/2016 0.00
11/23/2016 0.00
11/24/2016 **
11/25/2016 **
11/26/2016 **
11/27/2016 **
11/28/2016 0.03
11/29/2016 0.00
11/30/2016 0.44
12/1/2016 1.27
12/2/2016 0.01
12/3/2016 **
12/4/2016 **
12/5/2016 T
12/6/2016 T
12/7/2016 0.06
12/8/2016 T
12/9/2016 0.00
12/10/2016 **
12/11/2016 **
12/12/2016 0.45
12/13/2016 0.00
12/14/2016 0.00
12/15/2016 0.00
12/16/2016 0.00
12/17/2016 **
12/18/2016 **
12/19/2016 0.55
12/20/2016 0.00
12/21/2016 0.00
12/22/2016 0.00
12/23/2016 T
12/24/2016 **
12/25/2016 **
12/26/2016 **
12/27/2016 0.17
12/28/2016 0.00
12/29/2016 0.00
12/30/2016 0.69
12/31/2016 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2017
1/2/2017
1/3/2017 0.14
1/4/2017 0.98
1/5/2017 0.01
1/6/2017 0.01
1/7/2017 **
1/8/2017 **
1/9/2017 0.23
1/10/2017 0.00
1/11/2017 0.24
1/12/2017 0.12
1/13/2017 0.02
1/14/2017 **
1/15/2017 **
1/16/2017 **
1/17/2017 0.00
1/18/2017 0.47
1/19/2017 0.17
1/20/2017 **
1/21/2017 **
1/22/2017 **
1/23/2017 0.06
1/24/2017 1.17
1/25/2017 0.15
1/26/2017 0.01
1/27/2017 0.01
1/28/2017 **
1/29/2017 **
1/30/2017 0.00
1/31/2017 **
2/1/2017 0.10
2/2/2017 0.00
2/3/2017 0.00
2/4/2017 **
2/5/2017 0.00
2/6/2017 0.00
2/7/2017 T
2/8/2017 0.45
2/9/2017 **
2/10/2017 0.69
2/11/2017
2/12/2017
2/13/2017
2/14/2017 M
2/15/2017 0.00
2/16/2017 0.23
2/17/2017 0.00
2/18/2017
2/19/2017
2/20/2017
2/21/2017 0.00
2/22/2017 0.00
2/23/2017 0.00
2/24/2017 0.00
2/25/2017 **
2/26/2017 **
2/27/2017 0.05
2/28/2017 0.00
3/1/2017 0.01
3/2/2017 0.00
3/3/2017 0.00
3/4/2017 **
3/5/2017 **
3/6/2017 0.00
3/7/2017 0.00
3/8/2017 0.04
3/9/2017 0.00
3/10/2017 0.08
3/11/2017 **
3/12/2017 **
3/13/2017 0.07
3/14/2017 **
3/15/2017 1.58
3/16/2017 0.00
3/17/2017 0.00
3/18/2017 **
3/19/2017 **
3/20/2017 0.00
3/21/2017 0.00
3/22/2017 0.00
3/23/2017 0.00
3/24/2017 0.00
3/25/2017 **
3/26/2017 **
3/27/2017 0.08
3/28/2017 0.18
3/29/2017 0.70
3/30/2017 0.00
3/31/2017 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2017 **
4/2/2017 **
4/3/2017 1.22
4/4/2017 0.20
4/5/2017 0.73
4/6/2017 0.01
4/7/2017 1.12
4/8/2017 **
4/9/2017 **
4/10/2017 T
4/11/2017 0.00
4/12/2017 0.00
4/13/2017 0.03
4/14/2017 0.00
4/15/2017 **
4/16/2017 **
4/17/2017 T
4/18/2017 0.00
4/19/2017 0.00
4/20/2017 0.09
4/21/2017 0.24
4/22/2017 **
4/23/2017 **
4/24/2017 0.42
4/25/2017 0.02
4/26/2017 1.28
4/27/2017 0.17
4/28/2017 0.01
4/29/2017 **
4/30/2017 0.00
5/1/2017 **
5/2/2017 0.15
5/3/2017 T
5/4/2017 0.00
5/5/2017 T
5/6/2017 **
5/7/2017 **
5/8/2017 0.72
5/9/2017 T
5/10/2017 T
5/11/2017 0.00
5/12/2017 0.00
5/13/2017 **
5/14/2017 **
5/15/2017 0.76
5/16/2017 T
5/17/2017 0.00
5/18/2017
5/19/2017 0.05
5/20/2017 **
5/21/2017 **
5/22/2017 0.05
5/23/2017 0.08
5/24/2017 T
5/25/2017 T
5/26/2017 0.98
5/27/2017 **
5/28/2017 **
5/29/2017 **
5/30/2017 0.12
5/31/2017 0.01
6/1/2017 0.02
6/2/2017 **
6/3/2017 **
6/4/2017 **
6/5/2017 0.39
6/6/2017 0.85
6/7/2017 0.48
6/8/2017 0.00
6/9/2017 0.00
6/10/2017 **
6/11/2017 **
6/12/2017 0.00
6/13/2017 0.00
6/14/2017 0.15
6/15/2017 0.00
6/16/2017 0.00
6/17/2017 **
6/18/2017 **
6/19/2017 1.39
6/20/2017 0.14
6/21/2017 0.00
6/22/2017 0.00
6/23/2017 0.00
6/24/2017 **
6/25/2017 **
6/26/2017 0.07
6/27/2017
6/28/2017 0.17
6/29/2017 0.00
6/30/2017 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2017 **
7/2/2017 **
7/3/2017 **
7/4/2017 **
7/5/2017 0.35
7/6/2017 0.00
7/7/2017 0.00
7/8/2017 **
7/9/2017 **
7/10/2017 0.46
7/11/2017 0.18
7/12/2017 0.05
7/13/2017 0.62
7/14/2017 0.11
7/15/2017 **
7/16/2017 **
7/17/2017 0.00
7/18/2017 0.00
7/19/2017 0.20
7/20/2017 0.00
7/21/2017 0.00
7/22/2017 **
7/23/2017 **
7/24/2017 0.10
7/25/2017 1.09
7/26/2017 0.01
7/27/2017 **
7/28/2017 0.05
7/29/2017 **
7/30/2017 **
7/31/2017 0.00
8/1/2017 0.00
8/2/2017 0.00
8/3/2017 0.56
8/4/2017 0.00
8/5/2017 **
8/6/2017 **
8/7/2017 0.16
8/8/2017 T
8/9/2017 0.00
8/10/2017 0.00
8/11/2017 0.00
8/12/2017 **
8/13/2017 **
8/14/2017 0.12
8/15/2017 0.00
8/16/2017 T
8/17/2017 0.00
8/18/2017 0.00
8/19/2017 **
8/20/2017 **
8/21/2017 0.08
8/22/2017 0.00
8/23/2017 0.05
8/24/2017 0.00
8/25/2017 0.00
8/26/2017 **
8/27/2017 **
8/28/2017 0.00
8/29/2017 0.00
8/30/2017 0.09
8/31/2017 0.00
9/1/2017 0.00
9/2/2017 **
9/3/2017 **
9/4/2017 **
9/5/2017 0.31
9/6/2017 0.00
9/7/2017 **
9/8/2017 0.91
9/9/2017 **
9/10/2017 **
9/11/2017 T
9/12/2017 0.00
9/13/2017 0.00
9/14/2017 0.05
9/15/2017 0.07
9/16/2017 **
9/17/2017 **
9/18/2017 0.25
9/19/2017 0.02
9/20/2017 0.06
9/21/2017 0.16
9/22/2017 0.05
9/23/2017 **
9/24/2017 **
9/25/2017 0.06
9/26/2017 T
9/27/2017 0.00
9/28/2017
9/29/2017 0.00
9/30/2017 **



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/4/2016 8:30 AM 0.01 M M M M Trace amounts of rain overnight. Clouds today with some breaks of sun. Current temp is 60° with light breezes.
10/5/2016 8:50 AM 0.00 0.0 M M M mostly sunny, temperature 57 F, pressure 30.37
10/6/2016 9:00 AM 0.00 0.0 M M M
10/7/2016 8:00 AM 0.00 0.0 M M M
10/12/2016 8:40 AM 0.00 0.0 M M M Temp: 56F, Pressure: 30.38", clear skies
10/13/2016 8:25 AM 0.00 0.0 M M M Trace of dew
10/14/2016 9:00 AM T M M M M sunny, temperature 47 F, pressure 30.29"
10/18/2016 8:30 AM 0.23 M M M M Rain showers overnight. Overcast skies this morning, with current temps at 58°
10/19/2016 8:45 AM 0.00 0.0 M M M Partly Cloudy, temperature 73 F, pressure 29.89"
10/20/2016 9:00 AM 0.00 0.0 M M M sunny, temperature 62 F, pressure 30.25"
10/25/2016 8:45 AM T M M M M No measurable rain overnight, but trace amounts seen this morning.
10/26/2016 8:30 AM 0.00 0.0 M M M
10/27/2016 7:45 AM 0.00 0.0 M M M
11/1/2016 8:15 AM T M M M M
11/2/2016 9:10 AM 0.00 0.0 M M M mostly sunny, temperature 55 F, pressure 30.20"
11/3/2016 8:50 AM 0.04 M M M M Light rain overnight
11/4/2016 7:45 AM 0.08 M M M M Currently partly to mostly cloudy 47°F pressure 30.04" Hg and rising. No precipitation expected over the next several days.
11/8/2016 9:15 AM 0.00 0.0 M M M
11/9/2016 9:00 AM 0.00 0.0 M M M Cloudy, temperature 55 F, pressure 29.80"
11/10/2016 8:10 AM 0.00 0.0 M M M
11/15/2016 8:15 AM 0.00 0.0 M M M Clouds moving in during the morning with rain arriving later in the day. 53° with light breeze.
11/16/2016 8:50 AM 1.11 M M M M Overcast, temperature 52 F, pressure 29.65"
11/17/2016 8:20 AM 0.01 M M M M
11/22/2016 9:00 AM 0.00 0.0 M M M Sunny, temperature 36 F, pressure 29.82"
11/23/2016 8:50 AM 0.00 0.0 M M M
11/29/2016 8:30 AM 0.00 0.0 M M M overcast and cool at 45° with a light breeze. Rain moving in.
11/30/2016 9:25 AM 0.44 M M M M
12/1/2016 7:25 AM 1.27 M M M M
12/2/2016 8:15 AM 0.01 M M M M Few clouds 42°F pressure 29.77" Hg and rising. Next chance for precip is during the middle of next week.
12/6/2016 8:45 AM T M M M M
12/7/2016 9:15 AM 0.06 M M 0.0 M
12/8/2016 8:45 AM T M M M M
12/9/2016 7:00 AM 0.00 0.0 M M M
12/13/2016 7:00 AM 0.00 0.0 M M M
12/14/2016 9:20 AM 0.00 0.0 M 0.0 M
12/15/2016 8:50 AM 0.00 0.0 M M M
12/16/2016 8:30 AM 0.00 0.0 M M M
12/20/2016 9:00 AM 0.00 0.0 M M M Clear but cold today
12/21/2016 9:05 AM 0.00 0.0 M 0.0 M
12/22/2016 8:05 AM 0.00 0.0 M M M
12/23/2016 7:35 AM T M M M M Clear 36°F pressure 30.28" Hg and rising. Yesterday saw a brief period of light snow/rain around mid-morning that produced the trace measured. Precip is expected over the Holiday weekend most likely in the form of rain with the mild temperatures throughout the weekend.
12/28/2016 9:20 AM 0.00 0.0 M 0.0 M
12/29/2016 9:15 AM 0.00 0.0 M 0.0 M
12/30/2016 7:35 AM 0.69 T M T M Clear and breezy 34°F pressure 29.42" Hg and rising. Precip ended yesterday evening as a bit of wet snow with a patchy light coating this morning. With temp above freezing the amount in the gauge was already melted. Light precip is expected New Year's Eve with more substantial amounts possible on the 2nd and 3rd of the New Year. Happy New Year!
12/31/2016 7:00 AM 0.00 0.0 M M M
1/3/2017 9:00 AM 0.14 M M M M Note: this is a multiday report from 12/31/2016 to 1/3/2017 that was entered incorrectly but could not be corrected with editing the reports. Currently raining lightly with heavier rains expected later today. Current temp is 40°.
1/4/2017 7:20 AM 0.98 0.0 M 0.0 M Temp: 39F, Humidity: 94%, Pressure: 29.40", cloudy and hazy
1/5/2017 8:55 AM 0.01 M M M M Drizzle last night, frozen this morning.
1/6/2017 8:25 AM 0.01 0.7 M 0.7 M Overcast light–moderate snow 27°F pressure 30.00" Hg and steady. Snow should end by noon with some clearing by late in the day. A second small snow storm is forecast to pass by on Sat afternoon into the late evening with clearing on Sunday and bitter cold moving in for Monday morning, possibly single digit temps early Monday.
1/10/2017 8:30 AM 0.00 0.0 M M M
1/11/2017 7:30 AM 0.24 0.0 0.00 0.0 0.00 Temp: 49F, cloudy and breezy. Rain showers overnight ending in the early morning hours.
1/12/2017 7:35 AM 0.12 M M 0.0 0.00 Rain showers have stopped for the moment.
1/13/2017 7:50 AM 0.02 M M M M Clear with a few high cirrus clouds and windy 42°F pressure 30.21" Hg and rising. Dry through the MLK holiday with the next chance of precip midweek next week.
1/18/2017 9:00 AM 0.47 M M M M Off and on showers this morning, 39° with a light breeze. Pressure at 29.98"
1/19/2017 8:45 AM 0.17 M M M M Showers ended overnight.
1/24/2017 9:30 AM 1.17 0.0 M 0.0 M Precipitation began on Monday afternoon/evening and continued into the morning. Some sleet in the evening.
1/25/2017 7:00 AM 0.15 0.0 M 0.0 M Temp: 37F, Humidity: 82%, Pressure 29.43". Cloudy and mild.
1/26/2017 7:20 AM 0.01 0.0 M 0.0 M Temp: 41F, Humidity: 83%, Pressure: 29.41". Hazy and mild.
1/27/2017 9:28 AM 0.01 0.0 M 0.0 M Rained in the afternoon on Thursday, 1/26
2/2/2017 8:50 AM 0.00 0.0 M 0.0 M
2/3/2017 7:45 AM 0.00 0.0 M 0.0 M Mostly clear, high thin cirrus 26°F pressure 30.16" Hg and rising. Dry through the weekend. Next chance for measurable precipitation is next week.
2/6/2017 9:25 AM 0.00 0.0 M 0.0 M
2/7/2017 8:45 AM T M M M M Snow has just started as of this morning's reading. A mix of precip expected today; rain, snow, sleet.
2/8/2017 7:30 AM 0.45 0.0 M T M Temp: 30F, foggy. Icy rain overnight, thin coating of ice on all outdoor surfaces.
2/14/2017 9:00 AM M M M 8.0 M Melted snow measurement. {EDIT: Observer reported 0.59 for new precip and new SWE. Surrounding reports of 0.00's indicate this could be a date error. 0.59 matches better with reports in the area on the previous day. Changed 0.59 to NA until observer can be contacted to verify. Submission Time Before EDIT: 2/14/2017 3:06 PM CoCoSTAFF DNT}
2/15/2017 7:00 AM 0.00 0.0 M 0.0 M Temp: 33F, cirrus clouds in the sky
2/16/2017 9:15 AM 0.23 1.0 M 7.5 M Snowfall occurred overnight. Precipitation in rain gauge was partially ice.
2/17/2017 7:35 AM 0.00 0.0 M 7.0 M Clear and cold 25°F pressure 29.67" Hg and rising. No precipitation expected over the weekend and the first part of next week.
2/21/2017 8:30 AM 0.00 0.0 M M M Clear skies today, with temps currently in the mid 30's. Pressure is 30.37" dropping.
2/22/2017 7:30 AM 0.00 0.0 M 0.0 M Temp: 41F, cloudy.
2/23/2017 8:55 AM 0.00 0.0 M 0.0 M Clear morning with the prospect of a record high temperature today.
2/24/2017 7:45 AM 0.00 0.0 M M M Scattered clouds and very mild 54°F pressure 29.92" Hg and rising. Springlike conditions will persist through the first part of the weekend with the possibility of showers or brief thunderstorms as the cold front approaches and cools the temps down on Sunday.
2/28/2017 8:15 AM 0.00 0.0 M M M
3/1/2017 7:00 AM 0.01 0.0 M 0.0 M Temp: 52F, cloudy and humid, some light rain in the early morning hours
3/2/2017 8:05 AM 0.00 0.0 M M M
3/3/2017 7:50 AM 0.00 0.0 M M M Breezy and cold, sct high clouds 26°F pressure 30.11" Hg and rising. Snow squalls expected overnight with the Arctic front passing thru the Boston area. Dry the rest of the weekend.
3/7/2017 8:30 AM 0.00 0.0 M M M No rain yet but showers are moving in this morning. Current temp is 37° with gusting breezes.
3/8/2017 7:25 AM 0.04 0.0 M 0.0 M Temp: 52F, light drizzle
3/9/2017 8:50 AM 0.00 0.0 M M M May have been a brief shower overnight, but nothing measurable, not even a trace.
3/10/2017 8:50 AM 0.08 0.8 M 1.0 M Moderate snow falling at time of observation
3/16/2017 8:50 AM 0.00 0.0 M 4.0 M
3/17/2017 8:05 AM 0.00 0.0 M 5.0 M Partly to mostly cloudy (broken) 29°F pressure 30.10" Hg and rising. Dry throughout the rest of the day and into most of Saturday. Boston could get a dusting to a few inches late Sat night into Sunday depending on the redevelopment of a clipper system that is forecast off the coast of New England.
3/21/2017 8:45 AM 0.00 0.0 M 1.5 M Snow on ground in patches.
3/22/2017 7:30 AM 0.00 0.0 M 0.0 M Temp: 38F, partly sunny
3/23/2017 7:30 AM 0.00 0.0 M 0.0 M Temp: 19F, clear skies
3/24/2017 7:55 AM 0.00 0.0 M 0.0 M Mostly cloudy with breaks (broken cirrocumulus/cirrostratus) 33°F pressure 30.46" Hg and falling. Frontal passage later today will bring rain showers to the city (snow and/or mix well west/north of the city). A chance of rain will continue thru the weekend. While reporting 0.0 of snow on ground there are patches of snow around in shady areas only.
3/28/2017 8:45 AM 0.18 M M M M overcast, cool weather persists
3/29/2017 7:20 AM 0.70 0.0 M 0.0 M Temp: 38F, light mist
3/30/2017 8:05 AM 0.00 0.0 M 0.0 M
3/31/2017 7:45 AM 0.00 0.0 M M M Rain with wet snow and mix precipitation is likely over the next 24–36 hours in the Boston area.
4/4/2017 7:00 AM 0.20 M M M M Rain expected throughout the day, cool temps in 40s. Pressure 29.89" and falling.
4/5/2017 7:00 AM 0.73 0.0 0.00 0.0 0.00 Temp: 38F, cloudy, damp, and humid
4/6/2017 8:00 AM 0.01 M M M M Very light rain shower in progress at time of observation.
4/7/2017 8:00 AM 1.12 M M M M
4/11/2017 8:30 AM 0.00 0.0 M M M Warm day ahead with bright, clear skies. Light breezes and high pressure steady at 30.09".
4/12/2017 7:40 AM 0.00 0.0 M M M Clear with few clouds, 56°F pressure 30.12" Hg and rising. Chance of thundershowers this afternoon with the passage of a cold front, then clearing with the next chance for rain over the weekend.
4/13/2017 8:45 AM 0.03 M M M M
4/14/2017 7:50 AM 0.00 0.0 M M M Mostly clear, few clouds 47°F pressure 30.37" Hg and rising. Next chance for rain is Sat evening into early Easter morning with a warm front passage and then during Easter night with a cold front passage.
4/18/2017 9:00 AM 0.00 0.0 M M M Warm temps from previous days are cooling, with temps staying in the mid-50s. High pressure at 30.34"
4/19/2017 7:25 AM 0.00 0.0 0.00 0.0 0.00 Temp: 41F, partly cloudy with a light breeze
4/20/2017 8:00 AM 0.09 M M M M Overnight showers
4/21/2017 7:45 AM 0.24 M M M M Overcast with moderate rain 45°F pressure 30.09" Hg and falling. Rain will continue through the afternoon and into early evening today (next AMS report on Monday). Showers possible on Sat and clearing on Sunday.
4/25/2017 8:30 AM 0.02 M M M M Light rain has just started, with steadier rain moving in later today. Current pressure is 30.26" and dropping; current temp is 49°
4/26/2017 7:18 AM 1.28 0.0 0.00 0.0 0.00 Temp: 51F, damp and misty with intermittent drizzle.
4/27/2017 9:00 AM 0.17 M M M M Rain in afternoon/early evening on Wednesday, 4/26
4/28/2017 8:00 AM 0.01 M M M M
5/3/2017 7:30 AM T M M M M Temp: 54F, sunny, no clouds
5/4/2017 8:15 AM 0.00 0.0 M M M
5/5/2017 7:35 AM T M M M M Overcast, light rain and drizzle, 49°F pressure 30.08" Hg and rising. More rain approaching from the south and west later today with the potential for localized flooding through Saturday morning. Likelihood of scattered rain/rain showers early next week.
5/9/2017 8:30 AM T M M M M Trace amount of water measured.
5/10/2017 7:05 AM T M M M M Temp: 47F, cloudy and breezy
5/11/2017 7:55 AM 0.00 0.0 M M M
5/12/2017 8:00 AM 0.00 0.0 M M M
5/16/2017 8:30 AM T M M M M Trace precipitation this morning. Nice weather is moving in today, temps at 66°. Pressure is 29.89" and steady.
5/17/2017 7:15 AM 0.00 0.0 M M M Sunny, partly cloudy
5/19/2017 8:00 AM 0.05 M M M M
5/23/2017 9:00 AM 0.08 M M M M
5/24/2017 6:50 AM T M M M M Temp: 61F, cloudy, humid, cool
5/25/2017 8:05 AM T M M M M Light rain shower just starting at time of observation.
5/26/2017 7:30 AM 0.98 M M M M Overcast & fog with light rain & mist 50°F pressure 29.48" Hg and falling. Rain throughout the day today and clearing over the next 24 hr. The next observation from AMS will be Tue morning, so any rain today will be measured with the rainfall expected late Sun evening into the Memorial Day holiday.
5/31/2017 7:00 AM 0.01 M M M M Overcast, humid
6/1/2017 7:00 AM 0.02 M M M M
6/6/2017 8:45 AM 0.85 M M M M Morning drizzle with showers expected later. Cool temps at 50° with pressure at 29.81" and rising.
6/7/2017 6:55 AM 0.48 M M M M Temp: 52F, cloudy
6/8/2017 8:00 AM 0.00 0.0 M M M Clear, sunny, beautiful morning!
6/9/2017 8:10 AM 0.00 0.0 M M M Partly to mostly cloudy from west to east 59°F pressure 29.65" Hg and steady. Afternoon thunderstorms possible today (hit or miss), then clearing and warmer and dry over the weekend.
6/13/2017 8:00 AM 0.00 0.0 M M M
6/14/2017 7:10 AM 0.15 M M M M Temp: 70F, Humidity: 60%, Pressure: 29.95". Warm, sunny, clear skies with just a few wispy clouds.
6/15/2017 7:20 AM 0.00 0.0 M M M
6/16/2017 7:40 AM 0.00 0.0 M M M Mostly cloudy with thin OVC (some filtered sun) 64°F pressure 30.07" Hg and steady. Some sun this morning will give way to full OVC and showers with possible thunder this afternoon with rain ending Sat morning. Then humid on Sun with scattered showers possible into the beginning of next week.
6/20/2017 9:24 AM 0.14 M M M M Rained on Monday night and early on Tuesday morning.
6/21/2017 8:15 AM 0.00 0.0 M M M Temp: 75, partly cloudy
6/22/2017 8:00 AM 0.00 0.0 M M M
6/23/2017 8:00 AM 0.00 0.0 M M M
6/28/2017 7:15 AM 0.17 M M M M Temp: 61F, sunny, clear skies
6/29/2017 8:45 AM 0.00 0.0 M M M
6/30/2017 7:40 AM 0.00 0.0 M M M Cloudy with a few breaks 73°F pressure 29.96" Hg and rising. Humidity levels are increasing (63°F dewpoint this morning). Possibility of midmorning showers and then scattered thundershowers this afternoon. Thundershowers are forecast for early Sunday morning with the passage of a cold front, drying out the 4th holiday. Next AMS Boston observation will be on 5 July at the earliest.
7/6/2017 8:00 AM 0.00 0.0 M M M
7/7/2017 7:00 AM 0.00 0.0 M M M
7/11/2017 9:00 AM 0.18 M M M M Warm and humid today with showers moving off this morning. 70° with some wind. Pressure steady at 29.95"
7/12/2017 7:15 AM 0.05 M M M M Temp: 76F, dewpoint: 70, partly cloudy, humid
7/13/2017 8:45 AM 0.62 M M M M Showers in the area but none active over gauge at time of observation.
7/14/2017 9:05 AM 0.11 M M M M Overcast 63°F pressure 30.12" Hg and steady. Possible passing showers today thru Sat morning. Little chance of rain the rest of the weekend into Monday.
7/18/2017 8:30 AM 0.00 0.0 M M M Currently it's 78° with stable weather conditions. Humidity is high, with dew point at 71°
7/19/2017 7:15 AM 0.20 M M M M Temp: 77F, Humidity: 86%. Clear skies, humid.
7/20/2017 8:10 AM 0.00 0.0 M M M Few clouds 83°F and humid (dewpoint 66°F) pressure 29.95" Hg and steady. Possibility of hit or miss showers/thundershowers during the day with greater chance of thunderstorms overnight tonight.
7/21/2017 7:30 AM 0.00 0.0 M M M Few clouds and a little drier today (dewpoint 61°F) 76°F pressure 29.85" Hg and rising. Dry with little chance of precip early in the weekend. Showers/thundershowers possible by Sunday afternoon.
7/25/2017 8:30 AM 1.09 M M M M Rain moving out this morning, but cooler temps remain. Currently 59° and pressure is 30.07" and rising.
7/26/2017 7:15 AM 0.01 M M M M Temp: 62F, clear skies
8/1/2017 7:40 AM 0.00 0.0 M M M Clear 75°F pressure 30.01" Hg and rising. Humidity is on the rise over the next couple days with a slight possibility (increasing daily) of scattered showers/thundershowers during the late afternoon and evening every day.
8/2/2017 7:00 AM 0.00 0.0 M M M Temp: 75F, humid, partly cloudy
8/3/2017 8:10 AM 0.56 M M M M Passing thunderstorm or heavy shower from yesterday afternoon/evening.
8/4/2017 10:02 AM 0.00 0.0 M M M
8/8/2017 8:10 AM T M M M M
8/9/2017 7:15 AM 0.00 0.0 M M M Temp: 66F, clear skies, cool
8/10/2017 8:00 AM 0.00 0.0 M M M
8/11/2017 7:35 AM 0.00 0.0 M M M Partly to mostly cloudy 70°F pressure 30.16" Hg and steady. More humid today with clear skies later. Chance of scattered showers/thundershowers on Saturday with clearing Sunday.
8/15/2017 8:30 AM 0.00 0.0 M M M Cooler day today, with temps in the mid-70s. Pressure is steady at 29.93" with some brief showers in select areas.
8/16/2017 7:40 AM T 0.0 M M M Clear, few high clouds, 72°F pressure 29.90" Hg and rising. No chance for precip over the next 2 days. Next chance for measurable precip is Friday.
8/17/2017 8:00 AM 0.00 0.0 M M M
8/18/2017 7:30 AM 0.00 0.0 M M M Overcast 70°F pressure 29.95" Hg and rising. Stray showers this morning and scattered showers/thundershowers expected during the afternoon. Chance of precip diminishes after Saturday morning with clearing thru Sunday. Mostly sunny on Monday for the partial solar eclipse.
8/22/2017 10:00 AM 0.00 0.0 M M M
8/23/2017 7:00 AM 0.05 M M M M
8/24/2017 9:10 AM 0.00 0.0 M M M
8/25/2017 7:35 AM 0.00 0.0 M M M Partly cloudy 64°F pressure 30.03" Hg and rising. It continues to be a dry second half of August. To the west of Boston there are some light showers this morning that may quickly pass by midmorning. Dry thru the rest of the weekend with the next chance for measurable rain next week, possibly the remnants of Harvey or other tropical storms becoming active.
8/29/2017 8:30 AM 0.00 0.0 M M M
8/30/2017 7:35 AM 0.09 M M M M Overcast light rain and mist 61°F pressure 29.96" Hg and rising. Rain fell primarily in the overnight hours and more accumulation possible this morning before clearing during the afternoon.
8/31/2017 7:00 AM 0.00 0.0 M M M Temp: 62F, sunny, clear skies
9/1/2017 7:45 AM 0.00 0.0 M M M Clear few high thin cirrus clouds 54°F, pressure 30.00" Hg and rising. No rain with cold front passage yesterday afternoon, however, there is a mid-fall feel to the air this morning. The next chance of precipitation will be over the weekend, mainly Sunday, with the remnants of Harvey. Next observation will be on Tuesday morning because of the Labor Day holiday.
9/6/2017 9:00 AM 0.00 0.0 M M M Cooler today with rain expected in the afternoon and night. 70° current temp and pressure at 29.89"
9/12/2017 8:45 AM 0.00 0.0 M M M Warm temps today - expected to be 80°+ with light breezes. Pressure is currently 29.97" and falling.
9/13/2017 7:45 AM 0.00 0.0 M M M Temp: 66F, sunny, clear skies
9/14/2017 8:45 AM 0.05 M M M M Shower/thunderstorm overnight.
9/15/2017 7:40 AM 0.07 M M M M Overcast and humid 71°F, pressure 30.00" Hg and rising. Showers overnight from the remnants of Irma. Continued spotty showers and thundershowers today with clearing for the weekend. Watching Jose for precipitation Tue–Wed next week, especially southern NE.
9/19/2017 9:00 AM 0.02 M M M M Cooler, wet weather moving in today ahead of Hurricane Jose, which makes its closest pass off the southern coast of New England tomorrow. Currently 65°, pressure at 30.02"
9/20/2017 7:15 AM 0.06 M M M M Temp: 66F, Humidity: 100%, steady light drizzle
9/21/2017 8:40 AM 0.16 M M M M Cloudy skies
9/22/2017 7:45 AM 0.05 M M M M Overcast and breezy with occasional gusts, currently not raining, 58°F pressure 30.00 and steady. Occasional showers today with the remnants of Jose hanging off the coast of Cape Cod and the islands in the Atlantic. Current forecasts have the system moving away over the weekend with brightening skies and less chance of precipitation. The next chance of precip will be early–middle of next week with a front that may steer Maria away from NE.
9/26/2017 9:00 AM T M M M M Warm and muggy today, with dew points near 70°. Pressure is steady at 30.03"
9/27/2017 7:15 AM 0.00 0.0 M M M Temp: 68F, Humidity: 96%, clear skies
9/29/2017 8:30 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/1/2016 10/03/2016 7:30 AM 3 0.71 M M Temp: 58F, Humidity 93%, Pressure: 29.96". Partly cloudy.
10/8/2016 10/11/2016 9:00 AM 4 1.07 M M Heavy rains on 10/9/16. Today is clear and cool, with current temps at 50° and no wind.
10/15/2016 10/17/2016 7:20 AM 3 0.00 M M Temp: 62F, Dew Point: 57F, Pressure 29.91". Clear skies with a few wispy clouds.
10/21/2016 10/24/2016 7:10 AM 4 1.77 M M Temp: 52F, Humidity: 64%, Pressure: 29.77". Partly cloudy.
10/28/2016 10/31/2016 7:10 AM 4 1.42 M M Temp: 41F, Humidity: 80%, Pressure: 30.05". Clear skies, cold.
11/5/2016 11/07/2016 7:00 AM 3 0.04 M M Temp: 37F, Pressure: 30.44", Humidity: 74% . Clear skies, cold.
11/11/2016 11/14/2016 7:30 AM 4 0.00 M M Temp: 49F, Humidity: 32%, Pressure: 29.97". Clear skies
11/18/2016 11/21/2016 7:10 AM 4 0.08 M M Temp: 33F, Humidity: 71%, Pressure: 29.43". Cloudy and windy. Dusting of snow fell early Monday morning.
11/24/2016 11/28/2016 7:20 AM 5 0.03 M M Temp: 35F, Humidity: 78%, Pressure: 30.12", clear, cold.
12/3/2016 12/05/2016 7:30 AM 3 T M M Temp: 32F, Humidity: 92%, Pressure: 30.06". Steady light snow falling at the time of measurement. No measurable accumulation yet, just enough to dust the ground and put a trace of precipitation in the gauge.
12/10/2016 12/12/2016 9:10 AM 3 0.45 T M snow on ground has mostly turned to slush, light rain currently falling, 40 F
12/17/2016 12/19/2016 9:20 AM 3 0.55 0.0 M Snow on Saturday morning (12/17) became rain in the early afternoon. Accumulation was solid ice when taking measurement.
12/24/2016 12/27/2016 9:20 AM 4 0.17 0.0 M
1/7/2017 1/09/2017 9:30 AM 3 0.23 3.5 M Some snow on Friday afternoon/evening. Snowed all day on Saturday. 3.5"
1/14/2017 1/17/2017 8:30 AM 4 0.00 M M Quiet weather weekend. Today is a fairly average January day, at 36° and light winds. Pressure is 32.23"
1/20/2017 1/23/2017 9:30 AM 4 0.06 0.0 M Precipitation accumulated on Sunday night and into Monday morning. Snow began falling while taking measurement.
1/28/2017 1/30/2017 9:15 AM 3 0.00 0.0 M
1/31/2017 2/01/2017 7:20 AM 2 0.10 1.0 M Temp: 30F, Humidity: 94%, Pressure: 29.85". Light, fluffy snow fell overnight and into the early morning hours, but was finished before observation time.
2/4/2017 2/05/2017 9:25 AM 2 0.00 0.0 M
2/9/2017 2/10/2017 8:05 AM 2 0.69 9.6 M Current obs: Clear and very cold 14°F pressure 30.06" Hg and steady. Snow was surprisingly fluffy considering that AMS is relatively close to the coast. Next chance for precip is overnight into Sat morning and then on Sun into Mon morning. Looks like Boston is heading for the "stormy" part of the winter heading into President's Day and school week vacation!
2/25/2017 2/27/2017 9:10 AM 3 0.05 0.0 M Rained intermittently on Saturday afternoon/evening. High temperatures in 70s from Thursday to Saturday melted any remaining snow on ground.
3/4/2017 3/06/2017 9:15 AM 3 0.00 0.0 M Very cold weekend with no precipitation.
3/11/2017 3/13/2017 9:15 AM 3 0.07 1.5 M Precipitation in gauge was frozen.
3/14/2017 3/15/2017 9:00 AM 2 1.58 4.0 M Accumulated snow in gauge had condensed into ice at time of observation.
3/18/2017 3/20/2017 9:15 AM 3 0.00 3.0 M
3/25/2017 3/27/2017 9:40 AM 3 0.08 0.0 M Light drizzle while taking measurement. Snow on ground diminished by rain over the weekend.
4/1/2017 4/03/2017 9:05 AM 3 1.22 0.0 M Wintry mix began in early afternoon on Friday and continued into Saturday night. High of 58 F on Sunday melted any snow on ground. Current temperature is 42 F.
4/8/2017 4/10/2017 9:23 AM 3 T 0.0 M
4/15/2017 4/17/2017 9:08 AM 3 T M M Small showers on Sunday night.
4/22/2017 4/24/2017 8:45 AM 3 0.42 M M Rained mostly on Friday and partly on Saturday.
4/29/2017 4/30/2017 8:00 AM 2 0.00 M M
5/1/2017 5/02/2017 9:10 AM 2 0.15 M M Rained off and on Monday and into Tuesday morning.
5/6/2017 5/08/2017 7:00 AM 3 0.72 M M Rained heavily on Friday afternoon/evening (5/5) and some on Saturday (5/6).
5/13/2017 5/15/2017 9:15 AM 3 0.76 M M Light drizzle while taking measurement. Rained on both Saturday and Sunday.
5/20/2017 5/22/2017 9:25 AM 3 0.05 M M Rained early on Monday morning. Light drizzle while taking measurement.
5/27/2017 5/30/2017 8:30 AM 4 0.12 M M Rain is moving out today, but cooler temps persist. Pressure is 30.18" and rising.
6/2/2017 6/05/2017 7:15 AM 4 0.39 M M Temp: 55F, overcast, heavier rain in the early morning, light drizzle at time of reading
6/10/2017 6/12/2017 10:00 AM 3 0.00 M M
6/17/2017 6/19/2017 9:30 AM 3 1.39 M M Rained heavily throughout Friday.
6/24/2017 6/26/2017 9:20 AM 3 0.07 M M Light rain on Sunday afternoon.
7/1/2017 7/05/2017 7:00 AM 5 0.35 M M Temp: 69F, sunny
7/8/2017 7/10/2017 8:55 AM 3 0.46 M M Rained on Saturday afternoon/evening.
7/15/2017 7/17/2017 9:30 AM 3 0.00 M M
7/22/2017 7/24/2017 9:30 AM 3 0.10 M M Light drizzle while taking measurement. Rain began early this morning.
7/27/2017 7/28/2017 7:40 AM 2 0.05 M M Clear 72°F pressure 29.84" Hg and rising. Heavy rain will skirt the southeastern coast of MA after midnight and through Sat with a light shower possible in BOS during that time.
7/29/2017 7/31/2017 7:00 AM 3 0.00 M M
8/5/2017 8/07/2017 9:00 AM 3 0.16 M M Rained on Saturday, 8/5.
8/12/2017 8/14/2017 9:20 AM 3 0.12 M M Rained on Saturday in the early morning.
8/19/2017 8/21/2017 7:00 AM 3 0.08 M M
8/26/2017 8/28/2017 9:17 AM 3 0.00 M M
9/2/2017 9/05/2017 8:30 AM 4 0.31 M M Warm day to day with high humidity expected. Pressure at 29.85" and thunderstorms later in the afternoon / evening possible.
9/7/2017 9/08/2017 8:45 AM 2 0.91 M M
9/9/2017 9/11/2017 9:50 AM 3 T M M
9/16/2017 9/18/2017 9:20 AM 3 0.25 M M
9/23/2017 9/25/2017 9:30 AM 3 0.06 M M Rained on Friday night/early Saturday morning.
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.



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