Station Overview Station Location
Station Number MA-MD-83 Latitude 42.480738
Station Name Boxborough 1.4 SSE Longitude -71.494013
County Middlesex Elevation (ft) 218



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 4.36 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 16 4.29 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 16 4.14 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 17 3.64 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 17 3.34 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 17 4.30 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 17 4.27 2.06 22 1.58 20 0.48 2 1 7 2 0.0 0 0
May 17 4.01 5.01 29 5.01 29 0.00 0 0 15 2 0.0 0 0
June 17 4.13 3.79 30 2.69 20 1.10 10 2 9 1 0.0 0 0
July 17 3.85 5.54 31 4.16 22 1.38 9 2 9 1 0.0 0 0
Aug 17 3.81 3.20 31 2.89 16 0.31 15 2 4 1 0.0 0 0
Sept 17 3.80 3.10 29 0.40 18 2.70 11 3 6 2 0.0 0 0
Water Year Totals: 47.94" 22.70" 172 days 16.73" 125 5.97" 47 days 10 50 days 9 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
10/1/2016
10/2/2016
10/3/2016
10/4/2016
10/5/2016
10/6/2016
10/7/2016
10/8/2016
10/9/2016
10/10/2016
10/11/2016
10/12/2016
10/13/2016
10/14/2016
10/15/2016
10/16/2016
10/17/2016
10/18/2016
10/19/2016
10/20/2016
10/21/2016
10/22/2016
10/23/2016
10/24/2016
10/25/2016
10/26/2016
10/27/2016
10/28/2016
10/29/2016
10/30/2016
10/31/2016
11/1/2016
11/2/2016
11/3/2016
11/4/2016
11/5/2016
11/6/2016
11/7/2016
11/8/2016
11/9/2016
11/10/2016
11/11/2016
11/12/2016
11/13/2016
11/14/2016
11/15/2016
11/16/2016
11/17/2016
11/18/2016
11/19/2016
11/20/2016
11/21/2016
11/22/2016
11/23/2016
11/24/2016
11/25/2016
11/26/2016
11/27/2016
11/28/2016
11/29/2016
11/30/2016
12/1/2016
12/2/2016
12/3/2016
12/4/2016
12/5/2016
12/6/2016
12/7/2016
12/8/2016
12/9/2016
12/10/2016
12/11/2016
12/12/2016
12/13/2016
12/14/2016
12/15/2016
12/16/2016
12/17/2016
12/18/2016
12/19/2016
12/20/2016
12/21/2016
12/22/2016
12/23/2016
12/24/2016
12/25/2016
12/26/2016
12/27/2016
12/28/2016
12/29/2016
12/30/2016
12/31/2016
Day of YearDaily PrcpMultiday Prcp
1/1/2017
1/2/2017
1/3/2017
1/4/2017
1/5/2017
1/6/2017
1/7/2017
1/8/2017
1/9/2017
1/10/2017
1/11/2017
1/12/2017
1/13/2017
1/14/2017
1/15/2017
1/16/2017
1/17/2017
1/18/2017
1/19/2017
1/20/2017
1/21/2017
1/22/2017
1/23/2017
1/24/2017
1/25/2017
1/26/2017
1/27/2017
1/28/2017
1/29/2017
1/30/2017
1/31/2017
2/1/2017
2/2/2017
2/3/2017
2/4/2017
2/5/2017
2/6/2017
2/7/2017
2/8/2017
2/9/2017
2/10/2017
2/11/2017
2/12/2017
2/13/2017
2/14/2017
2/15/2017
2/16/2017
2/17/2017
2/18/2017
2/19/2017
2/20/2017
2/21/2017
2/22/2017
2/23/2017
2/24/2017
2/25/2017
2/26/2017
2/27/2017
2/28/2017
3/1/2017
3/2/2017
3/3/2017
3/4/2017
3/5/2017
3/6/2017
3/7/2017
3/8/2017
3/9/2017
3/10/2017
3/11/2017
3/12/2017
3/13/2017
3/14/2017
3/15/2017
3/16/2017
3/17/2017
3/18/2017
3/19/2017
3/20/2017
3/21/2017
3/22/2017
3/23/2017
3/24/2017
3/25/2017
3/26/2017
3/27/2017
3/28/2017
3/29/2017
3/30/2017
3/31/2017
Day of YearDaily PrcpMultiday Prcp
4/1/2017
4/2/2017
4/3/2017
4/4/2017
4/5/2017 0.01
4/6/2017
4/7/2017
4/8/2017
4/9/2017
4/10/2017 0.00
4/11/2017 0.00
4/12/2017 0.00
4/13/2017 0.15
4/14/2017 0.00
4/15/2017 0.00
4/16/2017 0.00
4/17/2017 T
4/18/2017 0.00
4/19/2017 0.00
4/20/2017 0.07
4/21/2017 0.15
4/22/2017 **
4/23/2017 0.48
4/24/2017 0.00
4/25/2017 0.00
4/26/2017 0.96
4/27/2017 0.21
4/28/2017 T
4/29/2017 0.03
4/30/2017 0.00
5/1/2017 0.13
5/2/2017 0.06
5/3/2017 0.06
5/4/2017 0.00
5/5/2017 0.00
5/6/2017 0.88
5/7/2017 0.10
5/8/2017 0.01
5/9/2017 0.00
5/10/2017 0.00
5/11/2017 0.00
5/12/2017 0.00
5/13/2017 0.00
5/14/2017 0.80
5/15/2017 0.49
5/16/2017 0.20
5/17/2017 0.00
5/18/2017 0.00
5/19/2017 0.51
5/20/2017
5/21/2017
5/22/2017 0.04
5/23/2017 0.28
5/24/2017 0.00
5/25/2017 0.00
5/26/2017 1.11
5/27/2017 0.25
5/28/2017 0.00
5/29/2017 T
5/30/2017 0.09
5/31/2017 T
6/1/2017 **
6/2/2017 **
6/3/2017 0.30
6/4/2017 0.01
6/5/2017 0.18
6/6/2017 1.05
6/7/2017 0.80
6/8/2017 0.00
6/9/2017 0.00
6/10/2017 0.00
6/11/2017 0.00
6/12/2017 0.00
6/13/2017 0.00
6/14/2017 **
6/15/2017 **
6/16/2017 **
6/17/2017 0.80
6/18/2017 T
6/19/2017 0.00
6/20/2017 0.31
6/21/2017 0.01
6/22/2017 0.00
6/23/2017 0.00
6/24/2017 0.05
6/25/2017 0.04
6/26/2017 0.24
6/27/2017 0.00
6/28/2017 **
6/29/2017 **
6/30/2017 **
Day of YearDaily PrcpMultiday Prcp
7/1/2017 1.14
7/2/2017 0.00
7/3/2017 0.06
7/4/2017 0.00
7/5/2017 0.00
7/6/2017 0.00
7/7/2017 0.00
7/8/2017 0.40
7/9/2017 0.39
7/10/2017 0.00
7/11/2017 0.03
7/12/2017 0.04
7/13/2017 1.96
7/14/2017 **
7/15/2017 **
7/16/2017 **
7/17/2017 **
7/18/2017 **
7/19/2017 **
7/20/2017 **
7/21/2017 0.24
7/22/2017 0.00
7/23/2017 0.00
7/24/2017 T
7/25/2017 1.19
7/26/2017 0.01
7/27/2017 0.00
7/28/2017 0.08
7/29/2017 0.00
7/30/2017 0.00
7/31/2017 0.00
8/1/2017 0.00
8/2/2017 0.00
8/3/2017 2.57
8/4/2017 0.00
8/5/2017 0.00
8/6/2017 0.24
8/7/2017 0.00
8/8/2017 0.04
8/9/2017 **
8/10/2017 **
8/11/2017 **
8/12/2017 **
8/13/2017 **
8/14/2017 **
8/15/2017 **
8/16/2017 **
8/17/2017 **
8/18/2017 **
8/19/2017 **
8/20/2017 **
8/21/2017 0.17
8/22/2017 0.00
8/23/2017 **
8/24/2017 0.14
8/25/2017 0.00
8/26/2017 T
8/27/2017 0.00
8/28/2017 0.00
8/29/2017 0.00
8/30/2017 0.04
8/31/2017 0.00
9/1/2017 0.00
9/2/2017 **
9/3/2017 **
9/4/2017 **
9/5/2017 0.63
9/6/2017 **
9/7/2017 1.95
9/8/2017 0.10
9/9/2017
9/10/2017 0.00
9/11/2017 **
9/12/2017 **
9/13/2017 **
9/14/2017 **
9/15/2017 0.12
9/16/2017 0.08
9/17/2017 0.00
9/18/2017 T
9/19/2017 0.01
9/20/2017 0.07
9/21/2017 0.12
9/22/2017 0.00
9/23/2017 0.02
9/24/2017 0.00
9/25/2017 0.00
9/26/2017 0.00
9/27/2017 0.00
9/28/2017 0.00
9/29/2017 0.00
9/30/2017 T



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
4/5/2017 5:20 AM 0.01 0.0 M 0.0 M Intermittent light spring showers
4/10/2017 5:20 AM 0.00 0.0 M M M
4/11/2017 5:20 AM 0.00 0.0 M M M
4/12/2017 5:20 AM 0.00 0.0 M M M
4/13/2017 5:20 AM 0.15 M M M M
4/14/2017 5:20 AM 0.00 0.0 M M M
4/15/2017 5:20 AM 0.00 0.0 M M M
4/16/2017 5:20 AM 0.00 0.0 M M M
4/17/2017 5:20 AM T M M M M Very light rain yesterday evening.
4/18/2017 5:20 AM 0.00 0.0 M M M
4/19/2017 5:20 AM 0.00 0.0 M M M
4/20/2017 5:20 AM 0.07 M M M M
4/21/2017 5:20 AM 0.15 M M M M
4/24/2017 5:20 AM 0.00 0.0 M M M
4/25/2017 5:20 AM 0.00 0.0 M M M
4/26/2017 5:20 AM 0.96 M M M M
4/27/2017 5:20 AM 0.21 M M M M
4/28/2017 5:20 AM T M M M M
4/29/2017 5:20 AM 0.03 M M M M
4/30/2017 5:20 AM 0.00 0.0 M M M
5/1/2017 5:20 AM 0.13 M M M M
5/2/2017 5:20 AM 0.06 M M M M
5/3/2017 5:20 AM 0.06 0.0 M 0.0 M
5/4/2017 5:20 AM 0.00 0.0 M 0.0 M
5/5/2017 5:20 AM 0.00 0.0 M 0.0 M
5/6/2017 5:20 AM 0.88 0.0 M 0.0 M A steady drizzle started in the late morning/early afternoon timeframe and continued on through the night.
5/7/2017 5:20 AM 0.10 0.0 M 0.0 M Primarily a continuance of the rain showers from the previous evening.
5/8/2017 5:20 AM 0.01 0.0 M 0.0 M This looked to be more than Dew. Not sure when it fell...possibly overnight
5/9/2017 5:20 AM 0.00 0.0 M 0.0 M I observed traces of rain at location approximately 10 miles away, however, am unable to record T since I didn't observe the traces at this location. It is entirely possible and even likely that there were traces of rain that occurred.
5/10/2017 5:20 AM 0.00 0.0 M 0.0 M I observed traces of rain at location approximately 10 miles away, however, am unable to record T since I didn't observe the traces at this location. It is entirely possible and even likely that there were traces of rain that occurred.
5/11/2017 5:20 AM 0.00 0.0 M 0.0 M
5/12/2017 5:20 AM 0.00 0.0 M 0.0 M
5/13/2017 5:20 AM 0.00 0.0 M 0.0 M Significant amount of see this morning, almost .005". I am assuming it was all dew
5/14/2017 5:20 AM 0.80 0.0 M 0.0 M Light sprinkles started on and off around 5:35pm, heavier steady rain in the morning.
5/15/2017 5:20 AM 0.49 0.0 M 0.0 M Rain on and off throughout, mostly off with some partial clearing during the afternoon
5/16/2017 5:20 AM 0.20 0.0 M 0.0 M Rain on and off ending in the late morning.
5/17/2017 5:20 AM 0.00 0.0 M 0.0 M
5/18/2017 5:20 AM 0.00 0.0 M 0.0 M
5/19/2017 5:20 AM 0.51 0.0 M 0.0 M Heavy downpours started last night around 10:30 after some lightning and thunder. The storm lasted a couple/few hours, with intermittent periods of heavy downpours.
5/22/2017 5:20 AM 0.04 0.0 M 0.0 M The rain began around 4:45 or 5:00am, not sure if there was any before that during the night.
5/23/2017 5:20 AM 0.28 0.0 M 0.0 M Rain continuing from yesterday morning, then sporadically lighter drizzle throughout the day. I'm guessing there were some additional showers thru the night, ending before morning.
5/24/2017 5:20 AM 0.00 0.0 M 0.0 M A drop or two of morning dew
5/25/2017 5:20 AM 0.00 0.0 M 0.0 M
5/26/2017 5:20 AM 1.11 0.0 M 0.0 M Steady rain began yesterday, late morning, and continued on and off through the night. Most of the rain fell overnight.
5/27/2017 5:20 AM 0.25 0.0 M 0.0 M
5/28/2017 5:20 AM 0.00 0.0 M 0.0 M
5/29/2017 5:20 AM T 0.0 M 0.0 M A couple of brief trickles during the day, the first one began around 3:30pm
5/30/2017 5:20 AM 0.09 0.0 M 0.0 M Light rain on and off throughout the day and possibly night
5/31/2017 5:20 AM T 0.0 M 0.0 M
6/4/2017 5:20 AM 0.01 M M M M
6/5/2017 5:20 AM 0.18 0.0 M 0.0 M Rain began with intermittent showers in the afternoon, continuing through early morning with steady showers.
6/6/2017 5:20 AM 1.05 M M M M Lighter intermittent rain throughout the day, with heavier steady downpours during the night.
6/7/2017 5:20 AM 0.80 M M M M Rain continuing from yesterday, drizzle during the day with heavier showers in the evening and ending overnight.
6/8/2017 5:20 AM 0.00 0.0 M M M Looks like dew, I didn't see any traces of rain
6/9/2017 5:20 AM 0.00 0.0 M M M
6/10/2017 5:20 AM 0.00 0.0 M M M
6/11/2017 5:20 AM 0.00 0.0 M M M
6/12/2017 5:20 AM 0.00 0.0 M M M
6/13/2017 5:20 AM 0.00 0.0 M M M
6/18/2017 5:20 AM T M M M M
6/19/2017 5:20 AM 0.00 0.0 M M M
6/20/2017 5:20 AM 0.31 M M M M Rain began around 7:15pm and ended overnight
6/21/2017 5:20 AM 0.01 M M M M
6/22/2017 5:20 AM 0.00 0.0 M M M
6/23/2017 5:20 AM 0.00 0.0 M M M
6/24/2017 5:20 AM 0.05 M M M M
6/25/2017 5:20 AM 0.04 M M M M
6/26/2017 5:20 AM 0.24 M M M M A light rain shower around 3:00pm, then heavier showers starting around 10:00pm.
6/27/2017 5:20 AM 0.00 0.0 M M M
7/2/2017 5:20 AM 0.00 0.0 M M M
7/3/2017 5:20 AM 0.06 M M M M Rain shower overnight
7/4/2017 5:20 AM 0.00 0.0 M M M
7/5/2017 5:20 AM 0.00 0.0 M M M
7/6/2017 5:20 AM 0.00 0.0 M M M
7/7/2017 5:20 AM 0.00 0.0 M M M
7/8/2017 5:20 AM 0.40 M M M M Light rain intermittent during the day and into the evening hours.
7/9/2017 5:20 AM 0.39 M M M M Light sprinkle around 2:05pm. Heavier rain began around 2:30pm, with a very heavy downpour that cleared up within an hour or so.
7/10/2017 5:20 AM 0.00 0.0 M M M
7/11/2017 5:20 AM 0.03 M M M M Rain started overnight, probably early morning based on parking lot observation, before 4:00am
7/12/2017 5:20 AM 0.04 M M M M Rain continuing thru the morning hours.
7/13/2017 5:20 AM 1.96 M M M M Heavy rains beginning around 6:00pm tailing down around 8 or 8:30 to showers overnight, ending by early morning.
7/22/2017 5:20 AM 0.00 0.0 M M M
7/23/2017 5:20 AM 0.00 0.0 M M M
7/24/2017 5:20 AM T M M M M Light sprinkles during obs, apparently just started
7/25/2017 5:20 AM 1.19 M M M M Steady rain all day, somewhat heavier rain late morning through the afternoon.
7/26/2017 5:20 AM 0.01 M M M M Light rain continued from yesterday morning. Also heavy condensation.
7/27/2017 5:20 AM 0.00 0.0 M M M
7/28/2017 5:20 AM 0.08 M M M M Steady light rain began in the late morning yesterday and into the evening. Heavy condensation this morning
7/29/2017 5:20 AM 0.00 0.0 M M M
7/30/2017 5:20 AM 0.00 0.0 M M M
7/31/2017 5:20 AM 0.00 0.0 M M M
8/1/2017 5:20 AM 0.00 0.0 M M M
8/2/2017 5:20 AM 0.00 0.0 M M M
8/3/2017 5:20 AM 2.57 M M M M Rain beginning in the afternoon around 2:00pm, increasingly heavy, T-storms, and periods of torrential downpours through the 3 o'clock hour, then tapering off but continuing steady rainfall through evening.
8/4/2017 5:20 AM 0.00 0.0 M M M
8/5/2017 5:20 AM 0.00 0.0 M M M
8/6/2017 5:20 AM 0.24 M M M M
8/7/2017 5:20 AM 0.00 0.0 M M M
8/8/2017 5:20 AM 0.04 M M M M Light rain briefly around 4:15pm, then another sprinkle around 7:55pm, then light drizzle continuing through the early morning
8/22/2017 5:20 AM 0.00 0.0 M M M
8/25/2017 5:20 AM 0.00 0.0 M M M
8/26/2017 5:20 AM T 0.0 M M M Just under .01 in the gauge, not sure when this fell but looked like too much to be condensation.
8/27/2017 5:20 AM 0.00 0.0 M M M
8/28/2017 5:20 AM 0.00 0.0 M M M
8/29/2017 5:20 AM 0.00 0.0 M M M
8/30/2017 5:20 AM 0.04 M M M M Looks like there were some showers overnight, ending before the time of observation.
8/31/2017 5:20 AM 0.00 0.0 M M M
9/1/2017 5:20 AM 0.00 0.0 M M M
9/8/2017 5:20 AM 0.10 M M M M Overnight showers ended by the observation time.
9/10/2017 5:20 AM 0.00 0.0 M 0.0 M Catching up on inputs after travel
9/16/2017 5:20 AM 0.08 0.0 M 0.0 M Rain began around 6:30pm with a medium/heavy shower beginning around 6:37pm lasting for 10-15 minutes or so. Rain continued on and off for several hours into the evening
9/17/2017 5:20 AM 0.00 0.0 M 0.0 M
9/18/2017 5:20 AM T 0.0 M 0.0 M Foggy and misty this morning, very light droplets with heavy dew/mist on ground.
9/19/2017 5:20 AM 0.01 0.0 M 0.0 M Dew on the gauge. Misty on the drive in, didn't notice anything during obs. Not sure when the rain fell
9/20/2017 5:20 AM 0.07 0.0 M 0.0 M Light drizzle during the observation, continuing off and on from yesterday.
9/21/2017 5:20 AM 0.12 0.0 M 0.0 M The light rain continuing from yesterday ended overnight.
9/22/2017 5:20 AM 0.00 0.0 M 0.0 M Some dew inside the gauge.
9/23/2017 5:20 AM 0.02 0.0 M 0.0 M Assuming this was likely rain continuing from yesterday morning.
9/24/2017 5:20 AM 0.00 0.0 M 0.0 M
9/25/2017 5:20 AM 0.00 0.0 M 0.0 M A bit of dew on the outside of the funnel.
9/26/2017 5:20 AM 0.00 0.0 M 0.0 M
9/27/2017 5:20 AM 0.00 0.0 M 0.0 M
9/28/2017 5:20 AM 0.00 0.0 M 0.0 M
9/29/2017 5:20 AM 0.00 0.0 M 0.0 M
9/30/2017 5:20 AM T 0.0 M 0.0 M Rain looks to have started early morning, still dry under the trees during obs.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
4/22/2017 4/23/2017 5:20 AM 2 0.48 0.0 0.00
6/1/2017 6/03/2017 5:20 AM 3 0.30 0.0 M
6/14/2017 6/17/2017 5:20 AM 4 0.80 M M
6/28/2017 7/01/2017 5:20 AM 4 1.14 0.0 0.00
7/14/2017 7/21/2017 5:20 AM 8 0.24 0.0 0.00 Returning from vacation--it has been clear and sunny for the last couple of days.
8/9/2017 8/21/2017 5:20 AM 13 0.17 0.0 0.00
8/23/2017 8/24/2017 5:20 AM 2 0.14 0.0 M I had ankle surgery on the 9th and will be on crutches for a couple of months or so. I do my best to at least keep the multi-day reports going in the meantime! :)
9/2/2017 9/05/2017 5:20 AM 4 0.63 0.0 0.00 I have been traveling, just catching up with inputs
9/6/2017 9/07/2017 5:20 AM 2 1.95 M M Guesstimate--added in an estimated amount for some slight spillage due to operator error. Should be fairly close
9/11/2017 9/15/2017 5:20 AM 5 0.12 0.0 0.00 Light rain occurring during this morning's observation. Returned from travel yesterday afternoon.



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