Station Overview Station Location
Station Number MA-WR-31 Latitude 42.200325
Station Name Grafton 1.3 W Longitude -71.70889899
County Worcester Elevation (ft) 361



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 14 4.53 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 14 4.22 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 14 4.25 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 15 3.71 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 15 3.43 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 15 4.50 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 15 4.36 2.06 7 2.06 7 0.00 0 0 2 1 0.0 0 0
May 15 3.71 0.66 23 0.66 23 0.00 0 0 4 2 0.0 0 0
June 15 4.10 8.56 27 8.56 27 0.00 0 0 11 1 0.0 0 0
July 15 3.88 4.15 27 4.15 27 0.00 0 0 11 2 0.0 0 0
Aug 15 3.65 2.25 29 1.61 23 0.64 6 1 6 1 0.0 0 0
Sept 15 3.71 3.30 31 3.30 26 0.00 5 1 6 0 0.0 0 0
Water Year Totals: 48.05" 20.98" 144 days 20.34" 133 0.64" 11 days 2 40 days 7 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
10/1/2014
10/2/2014
10/3/2014
10/4/2014
10/5/2014
10/6/2014
10/7/2014
10/8/2014
10/9/2014
10/10/2014
10/11/2014
10/12/2014
10/13/2014
10/14/2014
10/15/2014
10/16/2014
10/17/2014
10/18/2014
10/19/2014
10/20/2014
10/21/2014
10/22/2014
10/23/2014
10/24/2014
10/25/2014
10/26/2014
10/27/2014
10/28/2014
10/29/2014
10/30/2014
10/31/2014
11/1/2014
11/2/2014
11/3/2014
11/4/2014
11/5/2014
11/6/2014
11/7/2014
11/8/2014
11/9/2014
11/10/2014
11/11/2014
11/12/2014
11/13/2014
11/14/2014
11/15/2014
11/16/2014
11/17/2014
11/18/2014
11/19/2014
11/20/2014
11/21/2014
11/22/2014
11/23/2014
11/24/2014
11/25/2014
11/26/2014
11/27/2014
11/28/2014
11/29/2014
11/30/2014
12/1/2014
12/2/2014
12/3/2014
12/4/2014
12/5/2014
12/6/2014
12/7/2014
12/8/2014
12/9/2014
12/10/2014
12/11/2014
12/12/2014
12/13/2014
12/14/2014
12/15/2014
12/16/2014
12/17/2014
12/18/2014
12/19/2014
12/20/2014
12/21/2014
12/22/2014
12/23/2014
12/24/2014
12/25/2014
12/26/2014
12/27/2014
12/28/2014
12/29/2014
12/30/2014
12/31/2014
Day of YearDaily PrcpMultiday Prcp
1/1/2015
1/2/2015
1/3/2015
1/4/2015
1/5/2015
1/6/2015
1/7/2015
1/8/2015
1/9/2015
1/10/2015
1/11/2015
1/12/2015
1/13/2015
1/14/2015
1/15/2015
1/16/2015
1/17/2015
1/18/2015
1/19/2015
1/20/2015
1/21/2015
1/22/2015
1/23/2015
1/24/2015
1/25/2015
1/26/2015
1/27/2015
1/28/2015
1/29/2015
1/30/2015
1/31/2015
2/1/2015
2/2/2015
2/3/2015
2/4/2015
2/5/2015
2/6/2015
2/7/2015
2/8/2015
2/9/2015
2/10/2015
2/11/2015
2/12/2015
2/13/2015
2/14/2015
2/15/2015
2/16/2015
2/17/2015
2/18/2015
2/19/2015
2/20/2015
2/21/2015
2/22/2015
2/23/2015
2/24/2015
2/25/2015
2/26/2015
2/27/2015
2/28/2015
3/1/2015
3/2/2015
3/3/2015
3/4/2015
3/5/2015
3/6/2015
3/7/2015
3/8/2015
3/9/2015
3/10/2015
3/11/2015
3/12/2015
3/13/2015
3/14/2015
3/15/2015
3/16/2015
3/17/2015
3/18/2015
3/19/2015
3/20/2015
3/21/2015
3/22/2015
3/23/2015
3/24/2015
3/25/2015
3/26/2015
3/27/2015
3/28/2015
3/29/2015
3/30/2015
3/31/2015
Day of YearDaily PrcpMultiday Prcp
4/1/2015
4/2/2015
4/3/2015
4/4/2015
4/5/2015
4/6/2015
4/7/2015
4/8/2015
4/9/2015
4/10/2015
4/11/2015
4/12/2015
4/13/2015
4/14/2015
4/15/2015
4/16/2015
4/17/2015
4/18/2015
4/19/2015
4/20/2015
4/21/2015 2.04
4/22/2015 0.00
4/23/2015 0.02
4/24/2015
4/25/2015
4/26/2015
4/27/2015 0.00
4/28/2015 T
4/29/2015 0.00
4/30/2015 0.00
5/1/2015 T
5/2/2015 0.00
5/3/2015 0.00
5/4/2015 0.00
5/5/2015 0.00
5/6/2015 0.00
5/7/2015 0.00
5/8/2015 0.00
5/9/2015
5/10/2015
5/11/2015 0.00
5/12/2015 0.04
5/13/2015
5/14/2015 0.00
5/15/2015 0.00
5/16/2015 0.00
5/17/2015 0.00
5/18/2015 0.00
5/19/2015 T
5/20/2015 0.26
5/21/2015 0.00
5/22/2015 0.00
5/23/2015
5/24/2015
5/25/2015
5/26/2015
5/27/2015 0.00
5/28/2015 0.00
5/29/2015 0.02
5/30/2015
5/31/2015 0.34
6/1/2015 2.45
6/2/2015 1.45
6/3/2015 0.25
6/4/2015 0.00
6/5/2015 0.00
6/6/2015
6/7/2015 0.00
6/8/2015 0.00
6/9/2015 0.00
6/10/2015 0.52
6/11/2015 0.00
6/12/2015
6/13/2015 T
6/14/2015 0.00
6/15/2015 0.49
6/16/2015 0.70
6/17/2015 0.00
6/18/2015 0.00
6/19/2015 0.00
6/20/2015 0.00
6/21/2015 1.17
6/22/2015 0.47
6/23/2015
6/24/2015 0.03
6/25/2015 0.00
6/26/2015 0.00
6/27/2015 0.00
6/28/2015 0.78
6/29/2015 0.25
6/30/2015 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2015 0.00
7/2/2015 0.51
7/3/2015 0.00
7/4/2015 0.00
7/5/2015 0.04
7/6/2015 0.00
7/7/2015 0.00
7/8/2015 0.03
7/9/2015 0.00
7/10/2015 1.59
7/11/2015 0.00
7/12/2015
7/13/2015 0.00
7/14/2015 0.02
7/15/2015 0.27
7/16/2015
7/17/2015 0.00
7/18/2015 0.07
7/19/2015 0.08
7/20/2015 T
7/21/2015
7/22/2015 0.00
7/23/2015 0.00
7/24/2015 0.00
7/25/2015 0.48
7/26/2015 T
7/27/2015 0.00
7/28/2015
7/29/2015 0.53
7/30/2015 0.00
7/31/2015 0.53
8/1/2015 0.00
8/2/2015 0.06
8/3/2015 0.00
8/4/2015 T
8/5/2015 0.29
8/6/2015
8/7/2015 **
8/8/2015 **
8/9/2015 **
8/10/2015 **
8/11/2015 **
8/12/2015 0.64
8/13/2015 0.00
8/14/2015 0.00
8/15/2015 0.00
8/16/2015 1.06
8/17/2015 0.00
8/18/2015 0.00
8/19/2015 0.00
8/20/2015 0.00
8/21/2015 0.00
8/22/2015 0.12
8/23/2015 0.02
8/24/2015 0.06
8/25/2015 0.00
8/26/2015 0.00
8/27/2015 0.00
8/28/2015 0.00
8/29/2015
8/30/2015 0.00
8/31/2015 0.00
9/1/2015 0.00
9/2/2015 0.00
9/3/2015 0.00
9/4/2015 0.02
9/5/2015 0.00
9/6/2015 0.00
9/7/2015 0.00
9/8/2015 0.00
9/9/2015 0.00
9/10/2015 0.00
9/11/2015 2.18
9/12/2015 0.04
9/13/2015 0.04
9/14/2015 0.29
9/15/2015 0.00
9/16/2015 0.00
9/17/2015 0.00
9/18/2015 0.00 **
9/19/2015 **
9/20/2015 **
9/21/2015 **
9/22/2015 0.00
9/23/2015 0.00
9/24/2015 0.00
9/25/2015 0.00
9/26/2015 0.00
9/27/2015 0.00
9/28/2015 0.00
9/29/2015 0.00
9/30/2015 0.73



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
4/21/2015 6:58 AM 2.04 M M M M light rain started at approx 11 AM, light until mid afternoon, then heavier. Thunder and lightning north of us from 3:30 AM to 4:30 AM tues
4/22/2015 6:58 AM 0.00 0.0 M M M
4/23/2015 7:01 AM 0.02 M M M M some light rain between 7-9 PM
4/27/2015 7:01 AM 0.00 0.0 M M M light sprinkle at 7:00 AM for about 10 min.
4/28/2015 7:00 AM T M M M M light shower overnight
4/29/2015 7:05 AM 0.00 0.0 M M M some very light passing showers in the AM yesterday
4/30/2015 7:25 AM 0.00 0.0 M M M
5/1/2015 7:02 AM T M M M M light shower overnight. Just enough to get water in tube.
5/2/2015 6:55 AM 0.00 0.0 M M M clear & sunny.
5/3/2015 7:10 AM 0.00 0.0 M M M mostly clouty
5/4/2015 6:56 AM 0.00 0.0 M M M heavy dew overnight.
5/5/2015 6:50 AM 0.00 0.0 M M M
5/6/2015 7:10 AM 0.00 0.0 M M M
5/7/2015 6:58 AM 0.00 0.0 M M M Clear, blue sky. Beautiful full moon overnight.
5/8/2015 7:00 AM 0.00 0.0 M M M Beautiful sunny day.
5/11/2015 7:20 AM 0.00 0.0 M M M
5/12/2015 7:04 AM 0.04 M M M M rain overnight, now overcast
5/14/2015 7:00 AM 0.00 0.0 M M M clear, sunny day.
5/15/2015 6:46 AM 0.00 0.0 M M M clear & sunny
5/16/2015 7:00 AM 0.00 0.0 M M M starting to sprinkle. Maybe I'll have something to report tomorrow!
5/17/2015 7:08 AM 0.00 0.0 M M M
5/18/2015 7:04 AM 0.00 0.0 M M M overcast.
5/19/2015 6:42 AM T M M M M started sprinkling off and on at approx 6 AM.
5/20/2015 6:55 AM 0.26 M M M M very light rain started at about 6.30 Am Tues and stopped at about 2:00 PM
5/21/2015 7:45 AM 0.00 0.0 M M M
5/22/2015 6:55 AM 0.00 0.0 M M M Had a brief shower early, before 6 AM, enough to get the grille wet, but not measure!
5/27/2015 7:01 AM 0.00 0.0 M M M
5/28/2015 6:55 AM 0.00 0.0 M M M Another day of NO rain!
5/29/2015 6:40 AM 0.02 M M M M A meager rainfall from a storm that passed through very quickly.
5/31/2015 6:50 AM 0.34 M M M M Very dry month. Only measured a total of 0.62 + 2 traces!!
6/1/2015 6:45 AM 2.45 M M M M Rain started in Sun AM, light up to about 3 PM, got heavier & very heavy at times.
6/2/2015 7:45 AM 1.45 M M M M
6/3/2015 6:40 AM 0.25 M M M M Sorry I'm so late with this. I read it and forgot!
6/4/2015 7:10 AM 0.00 0.0 M M M
6/5/2015 6:30 AM 0.00 0.0 M M M
6/7/2015 7:10 AM 0.00 0.0 M M M
6/8/2015 6:45 AM 0.00 0.0 M M M clear earlier (5 AM), now clouding up
6/9/2015 7:10 AM 0.00 0.0 M M M overcast & warm; 66 deg.
6/10/2015 6:45 AM 0.52 M M M M Now sunny and clear. For yesterday: 10A>>10:30=0.01 6:20P>>6:35=0.25 6:40P>>6:55= 0.25 6:55 P the sun came out! overnight= 0.01
6/11/2015 6:39 AM 0.00 0.0 M M M
6/13/2015 6:40 AM T M M M M quick shower came through during the night.
6/14/2015 7:00 AM 0.00 0.0 M M M very clear, no wind.
6/15/2015 6:43 AM 0.49 M M M M nice light rain. raining before 5 AM
6/16/2015 6:45 AM 0.70 M M M M The following are readings I took from Mon at 6:43 AM to Tue 6:45 AM: Noon: 0.56 4:00 PM: 0.65 5:00 PM: 0.67
6/17/2015 6:55 AM 0.00 0.0 M M M
6/18/2015 6:40 AM 0.00 0.0 M M M overcast
6/19/2015 6:55 AM 0.00 0.0 M M M overcast
6/20/2015 7:00 AM 0.00 0.0 M M M Sorry I'm so late!
6/21/2015 6:45 AM 1.17 M M M M nice, gentle rain, but lots of it.
6/22/2015 7:05 AM 0.47 M M M M Sun 6:45 AM > 9:00 AM @ 0.39 9:00 AM > 2:00 PM @ 0.47 The rain was "winding" down starting at approx. noon.
6/24/2015 6:55 AM 0.03 M M M M short shower @ 8:15 AM Tues= T shower from 11:30 AM to 11:45 AM= 0.03
6/25/2015 7:00 AM 0.00 0.0 M M M
6/26/2015 6:45 AM 0.00 0.0 M M M have had "a few drops, off and on" since about 5:30 AM
6/27/2015 7:20 AM 0.00 0.0 M M M
6/28/2015 6:50 AM 0.78 M M M M
6/29/2015 6:40 AM 0.25 M M M M
6/30/2015 6:45 AM 0.00 0.0 M M M A total of 8.04 inches plus 1 "trace" for the month.
7/1/2015 6:50 AM 0.00 0.0 M M M Rain starting (with thunder) at 6:45 AM
7/2/2015 6:45 AM 0.51 M M M M 7 AM to 7:40 Wed=0.27" 7:40 AM to 8:45= 0.51 The rain stopped by 8:45, only had "a few drops" a couple of time after in the morning only.
7/3/2015 7:00 AM 0.00 0.0 M M M
7/4/2015 7:00 AM 0.00 0.0 M M M HAPPY INDEPENDENCE DAY!!!!! Although we had no rain yesterday I collected 0.03" in my guage while watering my lawn!
7/5/2015 6:50 AM 0.04 M M M M Very light rain on the Fourth from approx. noon to shortly after 4:00 PM
7/6/2015 6:50 AM 0.00 0.0 M M M
7/7/2015 7:05 AM 0.00 0.0 M M M No rain, but, 0.04 in from watering my lawn!
7/8/2015 6:45 AM 0.03 M M M M this rain came from several "sun showers" during the afternoon.
7/9/2015 6:55 AM 0.00 0.0 M M M
7/10/2015 7:05 AM 1.59 M M M M All rain was overnight.
7/11/2015 6:55 AM 0.00 0.0 M M M
7/13/2015 6:55 AM 0.00 0.0 M M M
7/14/2015 6:55 AM 0.02 M M M M Thunder, no lightning at about 4PM w/ light rain. Very foggy now, visibility good.
7/15/2015 6:55 AM 0.27 M M M M had one very light shower Tues morning, real rain came during night.
7/17/2015 6:55 AM 0.00 0.0 M M M
7/18/2015 6:50 AM 0.07 M M M M
7/19/2015 6:45 AM 0.08 M M M M Overcast, very humid (98%)
7/20/2015 6:55 AM T M M M M at about 8PM Sun had lots of thunder, but well north of us, just a trace of rain here. Heard from my daughter of pea size hail, and lots of it on I-90 between Albany, NY and Utica, NY
7/22/2015 7:35 AM 0.00 0.0 M M M
7/23/2015 6:55 AM 0.00 0.0 M M M
7/24/2015 7:15 AM 0.00 0.0 M M M
7/25/2015 7:05 AM 0.48 M M M M got 0.37 from ~4:25 PM- ~4:40PM, had stopped by ~5:10 PM. with 0.42. Started again at ~7:35 PM.
7/26/2015 7:00 AM T M M M M
7/27/2015 6:54 AM 0.00 0.0 M M M VERY heavy dew (99% humidity). There was enough due to show a trace in my collector.
7/29/2015 8:00 AM 0.53 M M M M Sorry I'm so late, got busy and forgot. This whole amount came from ~4:00 PM to ~4:15 PM and was clearing at ~4:20 PM. Quite a bit of thunder and lightning, no lightning visible, sounded north of this location
7/30/2015 7:00 AM 0.00 0.0 M M M
7/31/2015 7:00 AM 0.53 M M M M This being sent from my iPad using my cell phone as a "hotspot". Our power went out at 6:00 AM,,
8/1/2015 7:10 AM 0.00 0.0 M M M
8/2/2015 6:44 AM 0.06 M M M M shower from ~4:00 PM to ~4:30 PM Sat.
8/3/2015 6:55 AM 0.00 0.0 M M M
8/4/2015 6:45 AM T M M M M very light shower from ~6:20 AM to ~6:40 today, just enough in tube to see. More coming!
8/5/2015 6:45 AM 0.29 M M M M ~3:45-3:53 PM Tues 0.05 in, with some wind, and some thunder, no visible lightning. Air felt dryer after the rain, although my driveway was steaming. ~5:52-6:01 PM more rain, brought gauge up to 0.27 in. overnight more, total of 0.29 in.
8/13/2015 6:52 AM 0.00 0.0 M M M
8/14/2015 6:55 AM 0.00 0.0 M M M
8/15/2015 7:00 AM 0.00 0.0 M M M
8/16/2015 6:45 AM 1.06 M M M M was starting at ~9:00 PM Saturday.
8/17/2015 7:05 AM 0.00 0.0 M M M
8/18/2015 6:55 AM 0.00 0.0 M M M
8/19/2015 7:00 AM 0.00 0.0 M M M
8/20/2015 6:57 AM 0.00 0.0 M M M overcast and very humid
8/21/2015 7:10 AM 0.00 0.0 M M M A very light "drizzle" since about 6:30.
8/22/2015 6:45 AM 0.12 M M M M
8/23/2015 6:55 AM 0.02 M M M M Very light rain overnight, a very light "mist" at 6:55 AM.
8/24/2015 6:55 AM 0.06 M M M M The 0.06 was overnight, we got nothing from the morning "mist" of Sunday, it had stopped bt about noon.
8/25/2015 6:50 AM 0.00 0.0 M M M Had some very light rain at ~1:50 PM,lasted about 3 min. One mile east at the same time it was heavy (I was driving in it).
8/26/2015 6:55 AM 0.00 0.0 M M M
8/27/2015 6:45 AM 0.00 0.0 M M M
8/28/2015 6:55 AM 0.00 0.0 M M M
8/30/2015 6:55 AM 0.00 0.0 M M M
8/31/2015 6:55 AM 0.00 0.0 M M M Lots of high thin clouds for the kids first day of school! For the month of August I measured 2.23" + 1 Trace.
9/1/2015 6:45 AM 0.00 0.0 M M M
9/2/2015 7:10 AM 0.00 0.0 M M M No rain, but my gauge showed 0.04" from my sprinkler!
9/3/2015 7:35 AM 0.00 0.0 M M M no rain, but, another 0.04" from the lawn sprinkler.
9/4/2015 6:38 AM 0.02 M M M M
9/5/2015 7:20 AM 0.00 0.0 M M M Beautiful, clear sunny day! Great way to start a holiday weekend!
9/6/2015 7:10 AM 0.00 0.0 M M M
9/7/2015 6:55 AM 0.00 0.0 M M M But, 0.04" from the lawn sprinkler yesterday afternoon! My lawn's happier.
9/8/2015 7:00 AM 0.00 0.0 M M M No water from the Heavens, but, 0.02" on the lawn from the sprinkler.
9/9/2015 6:55 AM 0.00 0.0 M M M
9/10/2015 7:00 AM 0.00 0.0 M M M overcast, thunderstorms on the way.
9/11/2015 6:55 AM 2.18 M M M M Started at ~4:15 PM Thur. Still coming down as a "heavy mist"
9/12/2015 6:55 AM 0.04 M M M M "Mist" stopped before noon.
9/13/2015 7:10 AM 0.04 M M M M A shower overnight.
9/14/2015 6:55 AM 0.29 M M M M Rain overnight, couldn't prove it by me, I slept through it!
9/15/2015 6:55 AM 0.00 0.0 M M M
9/16/2015 7:15 AM 0.00 0.0 M M M
9/17/2015 6:55 AM 0.00 0.0 M M M So far a beautiful clear day!
9/18/2015 7:00 AM 0.00 0.0 M M M
9/23/2015 6:45 AM 0.00 0.0 M M M
9/24/2015 7:00 AM 0.00 0.0 M M M
9/25/2015 7:05 AM 0.00 0.0 M M M
9/26/2015 6:55 AM 0.00 0.0 M M M
9/27/2015 7:10 AM 0.00 0.0 M M M
9/28/2015 6:40 AM 0.00 0.0 M M M
9/29/2015 7:20 AM 0.00 0.0 M M M no rain overnight, but have just had a few sprinkles (enough to wet deck). Hopefully more (light) coming!!
9/30/2015 6:50 AM 0.73 M M M M Don't know when the rain started, but it was raining when I got up at 4:30 AM. A nice, steady rain. Have had 1 time when it was heavy for a few minutes.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
8/7/2015 8/12/2015 6:50 AM 6 0.64 M M All of this came yesterday (the 11th) starting at ~8:00 AM and stopping at ~2:00 PM, with a little extra overnight.
9/18/2015 9/22/2015 7:00 AM 5 0.00 M M



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