Station Overview Station Location
Station Number MA-SF-2 Latitude 42.384222
Station Name Winthrop 0.2 N Longitude -70.979692
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 09 4.01 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 09 4.17 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 09 3.98 4.32 11 4.32 11 0.00 0 0 10 1 14.4 4 4
Jan 10 3.45 3.68 11 3.68 11 0.00 0 0 10 1 17.6 9 7
Feb 10 3.40 3.82 13 3.82 13 0.00 0 0 9 4 7.3 6 0
March 10 4.38 14.83 13 14.83 13 0.00 0 0 13 0 0.6 2 0
April 10 4.02 1.97 10 1.97 9 0.00 1 0 9 0 0.0 0 0
May 10 3.52 2.77 23 1.25 3 1.52 20 3 3 0 0.0 0 0
June 10 3.84 3.53 29 0.53 1 3.00 28 5 1 0 0.0 0 0
July 10 3.53 3.02 12 2.99 9 0.03 3 1 7 2 0.0 0 0
Aug 10 3.48 1.96 15 0.94 4 1.02 11 1 4 0 0.0 0 0
Sept 10 3.55 5.08 20 0.39 2 4.69 18 3 2 0 0.0 0 0
Water Year Totals: 45.33" 44.98" 157 days 34.72" 76 10.26" 81 days 13 68 days 8 days 39.9" 21 days 11 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
10/1/2009
10/2/2009
10/3/2009
10/4/2009
10/5/2009
10/6/2009
10/7/2009
10/8/2009
10/9/2009
10/10/2009
10/11/2009
10/12/2009
10/13/2009
10/14/2009
10/15/2009
10/16/2009
10/17/2009
10/18/2009
10/19/2009
10/20/2009
10/21/2009
10/22/2009
10/23/2009
10/24/2009
10/25/2009
10/26/2009
10/27/2009
10/28/2009
10/29/2009
10/30/2009
10/31/2009
11/1/2009
11/2/2009
11/3/2009
11/4/2009
11/5/2009
11/6/2009
11/7/2009
11/8/2009
11/9/2009
11/10/2009
11/11/2009
11/12/2009
11/13/2009
11/14/2009
11/15/2009
11/16/2009
11/17/2009
11/18/2009
11/19/2009
11/20/2009
11/21/2009
11/22/2009
11/23/2009
11/24/2009
11/25/2009
11/26/2009
11/27/2009
11/28/2009
11/29/2009
11/30/2009
12/1/2009
12/2/2009
12/3/2009 0.83
12/4/2009
12/5/2009
12/6/2009 0.37
12/7/2009
12/8/2009
12/9/2009 0.33
12/10/2009 1.01
12/11/2009
12/12/2009
12/13/2009
12/14/2009 0.78
12/15/2009
12/16/2009
12/17/2009 T
12/18/2009
12/19/2009
12/20/2009 0.55
12/21/2009 0.18
12/22/2009
12/23/2009
12/24/2009
12/25/2009
12/26/2009 0.04
12/27/2009 0.13
12/28/2009 0.10
12/29/2009
12/30/2009
12/31/2009
Day of YearDaily PrcpMultiday Prcp
1/1/2010 0.20
1/2/2010 0.14
1/3/2010 0.61
1/4/2010 0.05
1/5/2010
1/6/2010
1/7/2010
1/8/2010
1/9/2010 0.01
1/10/2010
1/11/2010
1/12/2010
1/13/2010
1/14/2010
1/15/2010
1/16/2010
1/17/2010
1/18/2010 1.39
1/19/2010 0.12
1/20/2010 0.33
1/21/2010
1/22/2010
1/23/2010
1/24/2010
1/25/2010 T
1/26/2010 0.79
1/27/2010
1/28/2010
1/29/2010 0.04
1/30/2010
1/31/2010
2/1/2010
2/2/2010
2/3/2010 0.03
2/4/2010 0.01
2/5/2010
2/6/2010 T
2/7/2010 T
2/8/2010
2/9/2010
2/10/2010
2/11/2010 0.24
2/12/2010
2/13/2010
2/14/2010
2/15/2010
2/16/2010 0.01
2/17/2010 0.67
2/18/2010
2/19/2010 T
2/20/2010
2/21/2010
2/22/2010
2/23/2010
2/24/2010 0.54
2/25/2010 0.93
2/26/2010 1.32
2/27/2010 T
2/28/2010 0.07
3/1/2010 0.35
3/2/2010
3/3/2010
3/4/2010 0.03
3/5/2010 0.11
3/6/2010
3/7/2010
3/8/2010
3/9/2010
3/10/2010
3/11/2010
3/12/2010 0.07
3/13/2010
3/14/2010 2.89
3/15/2010 2.68
3/16/2010 1.38
3/17/2010
3/18/2010
3/19/2010
3/20/2010
3/21/2010
3/22/2010
3/23/2010 1.36
3/24/2010 0.85
3/25/2010
3/26/2010 0.17
3/27/2010
3/28/2010
3/29/2010 0.13
3/30/2010 2.71
3/31/2010 2.10
Day of YearDaily PrcpMultiday Prcp
4/1/2010
4/2/2010
4/3/2010
4/4/2010
4/5/2010
4/6/2010
4/7/2010
4/8/2010
4/9/2010
4/10/2010 0.95
4/11/2010
4/12/2010
4/13/2010
4/14/2010
4/15/2010
4/16/2010 0.09
4/17/2010 0.49
4/18/2010 0.11
4/19/2010 0.05
4/20/2010
4/21/2010
4/22/2010
4/23/2010 0.07
4/24/2010
4/25/2010
4/26/2010
4/27/2010 0.04
4/28/2010 0.09
4/29/2010 0.08
4/30/2010 **
5/1/2010 **
5/2/2010 **
5/3/2010 0.04
5/4/2010
5/5/2010 0.10
5/6/2010 **
5/7/2010 **
5/8/2010 **
5/9/2010 **
5/10/2010 **
5/11/2010 1.22
5/12/2010
5/13/2010 **
5/14/2010 **
5/15/2010 **
5/16/2010 **
5/17/2010 0.26
5/18/2010
5/19/2010 1.04
5/20/2010 0.11
5/21/2010
5/22/2010
5/23/2010
5/24/2010
5/25/2010
5/26/2010 **
5/27/2010 **
5/28/2010 **
5/29/2010 **
5/30/2010 **
5/31/2010 **
6/1/2010 0.46
6/2/2010 0.53
6/3/2010 **
6/4/2010 **
6/5/2010 **
6/6/2010 **
6/7/2010 **
6/8/2010 1.97
6/9/2010 **
6/10/2010 **
6/11/2010 **
6/12/2010 **
6/13/2010 **
6/14/2010 **
6/15/2010 0.41
6/16/2010 **
6/17/2010 **
6/18/2010 **
6/19/2010 **
6/20/2010 **
6/21/2010 **
6/22/2010 **
6/23/2010 **
6/24/2010 **
6/25/2010 **
6/26/2010 **
6/27/2010 **
6/28/2010 0.12
6/29/2010
6/30/2010
Day of YearDaily PrcpMultiday Prcp
7/1/2010
7/2/2010
7/3/2010
7/4/2010
7/5/2010
7/6/2010
7/7/2010
7/8/2010
7/9/2010
7/10/2010
7/11/2010 1.67
7/12/2010 0.03
7/13/2010 0.48
7/14/2010 0.09
7/15/2010 0.08
7/16/2010 **
7/17/2010 **
7/18/2010 0.03
7/19/2010
7/20/2010 T
7/21/2010
7/22/2010
7/23/2010
7/24/2010 0.58
7/25/2010
7/26/2010
7/27/2010
7/28/2010
7/29/2010 T
7/30/2010 0.06
7/31/2010
8/1/2010
8/2/2010
8/3/2010 0.01
8/4/2010
8/5/2010 **
8/6/2010 **
8/7/2010 1.02
8/8/2010
8/9/2010
8/10/2010 0.09
8/11/2010
8/12/2010
8/13/2010
8/14/2010
8/15/2010
8/16/2010 0.22
8/17/2010
8/18/2010
8/19/2010
8/20/2010
8/21/2010
8/22/2010
8/23/2010 0.62
8/24/2010 **
8/25/2010 **
8/26/2010 **
8/27/2010 **
8/28/2010 **
8/29/2010 **
8/30/2010 **
8/31/2010 **
9/1/2010 **
9/2/2010 **
9/3/2010 4.03
9/4/2010 0.32
9/5/2010
9/6/2010
9/7/2010
9/8/2010 **
9/9/2010 **
9/10/2010 0.19
9/11/2010
9/12/2010
9/13/2010 **
9/14/2010 **
9/15/2010 **
9/16/2010 **
9/17/2010 **
9/18/2010 **
9/19/2010 **
9/20/2010 **
9/21/2010 0.47
9/22/2010
9/23/2010
9/24/2010
9/25/2010
9/26/2010
9/27/2010 0.07
9/28/2010 **
9/29/2010 **
9/30/2010 **



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
12/3/2009 8:00 AM 0.83 M M M M southerly component to wind w/gusts ovr 40
12/6/2009 8:00 AM 0.37 2.1 M M M
12/9/2009 8:00 AM 0.33 T M M M
12/10/2009 8:00 AM 1.01 M M M M
12/14/2009 8:00 AM 0.78 M M M M
12/17/2009 8:00 AM T T M M M
12/20/2009 8:00 AM 0.55 8.9 0.55 9.0 0.55
12/21/2009 8:00 AM 0.18 3.2 0.18 10.0 M with air temp upper teens low 20s for most of stm, low density snow, kind of a novelty here along the coast
12/26/2009 8:00 AM 0.04 0.2 M 3.0 M
12/27/2009 8:00 AM 0.13 M M 0.5 M
12/28/2009 8:00 AM 0.10 M M 0.0 M
1/1/2010 8:00 AM 0.20 2.3 0.20 2.0 M sno frm 1st episode 12/31/09 = 2.1 early AM 1/1/10 = 0.2 total 2.3
1/2/2010 8:00 AM 0.14 2.4 M 4.0 M sno varying intensities favoring light w occ bursts of mod
1/3/2010 8:00 AM 0.61 8.6 M 10.5 M
1/4/2010 8:00 AM 0.05 1.1 M 11.0 M
1/9/2010 8:00 AM 0.01 0.2 M 0.5 M
1/18/2010 8:00 AM 1.39 1.2 M M M flip flop rain sleet sno, measured frzn was mostly sleet
1/19/2010 8:00 AM 0.12 0.7 M 1.6 M
1/20/2010 8:00 AM 0.33 1.0 M 2.1 M
1/25/2010 8:00 AM T M M M M
1/26/2010 8:00 AM 0.79 M M M M All snow is gone, air temp stayed abv frz past 32 hrs
1/29/2010 8:00 AM 0.04 0.1 M M M
2/3/2010 8:00 AM 0.03 0.2 M M M
2/4/2010 8:00 AM 0.01 0.2 M M M
2/6/2010 8:00 AM T T M M M
2/7/2010 8:00 AM T T M M M
2/11/2010 8:00 AM 0.24 1.2 0.22 M M
2/16/2010 8:00 AM 0.01 0.1 M M M
2/17/2010 8:00 AM 0.67 5.4 0.67 M M
2/19/2010 8:00 AM T T M M M
2/24/2010 8:00 AM 0.54 M M M M
2/25/2010 8:00 AM 0.93 M M M M
2/26/2010 8:00 AM 1.32 M M M M
2/27/2010 8:00 AM T T M M M
2/28/2010 8:00 AM 0.07 0.2 M M M
3/1/2010 8:00 AM 0.35 0.5 M M M snofall measured on snowboard
3/4/2010 8:00 AM 0.03 T M M M
3/5/2010 8:00 AM 0.11 0.1 M M M
3/12/2010 8:00 AM 0.07 M M M M
3/14/2010 8:00 AM 2.89 M M M M
3/15/2010 8:00 AM 2.68 M M M M
3/16/2010 8:00 AM 1.38 M M M M
3/23/2010 8:00 AM 1.36 M M M M
3/24/2010 8:00 AM 0.85 M M M M
3/26/2010 8:00 AM 0.17 T T M M
3/29/2010 8:00 AM 0.13 M M M M
3/30/2010 8:00 AM 2.71 M M M M
3/31/2010 8:00 AM 2.10 M M M M for 3 day rain episode our total was 4.94"
4/10/2010 8:00 AM 0.95 M M M M
4/16/2010 8:00 AM 0.09 M M M M
4/17/2010 8:00 AM 0.49 M M M M
4/18/2010 8:00 AM 0.11 M M M M
4/19/2010 8:00 AM 0.05 M M M M
4/23/2010 8:00 AM 0.07 M M M M
4/27/2010 8:00 AM 0.04 M M M M
4/28/2010 8:00 AM 0.09 M M M M
4/29/2010 8:00 AM 0.08 M M M M
5/5/2010 8:00 AM 0.10 M M M M
5/19/2010 8:00 AM 1.04 M M M M
5/20/2010 8:00 AM 0.11 M M M M
6/2/2010 8:00 AM 0.53 M M M M T storms
7/11/2010 8:00 AM 1.67 M M M M
7/12/2010 8:00 AM 0.03 M M M M
7/13/2010 8:00 AM 0.48 M M M M
7/14/2010 8:00 AM 0.09 M M M M
7/15/2010 8:00 AM 0.08 M M M M
7/20/2010 8:00 AM T M M M M
7/24/2010 8:00 AM 0.58 M M M M
7/29/2010 8:00 AM T M M M M
7/30/2010 8:00 AM 0.06 M M M M
8/3/2010 8:00 AM 0.01 M M M M
8/10/2010 8:00 AM 0.09 M M M M
8/16/2010 8:00 AM 0.22 M M M M
8/23/2010 8:00 AM 0.62 M M M M
9/4/2010 8:00 AM 0.32 M M M M
9/27/2010 11:00 AM 0.07 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
4/30/2010 5/03/2010 4:00 PM 4 0.04 M M
5/6/2010 5/11/2010 8:00 AM 6 1.22 M M
5/13/2010 5/17/2010 4:00 PM 5 0.26 M M
5/26/2010 6/01/2010 2:00 PM 7 0.46 M M
6/3/2010 6/08/2010 8:00 AM 6 1.97 M M
6/9/2010 6/15/2010 1:00 PM 7 0.41 M M
6/16/2010 6/22/2010 8:00 AM 7 0.04 M M
6/22/2010 6/28/2010 8:00 AM 7 0.12 M M
7/16/2010 7/18/2010 8:00 AM 3 0.03 M M
8/5/2010 8/07/2010 2:00 PM 3 1.02 M M
8/24/2010 9/03/2010 8:00 AM 11 4.03 M M
9/8/2010 9/10/2010 4:00 PM 3 0.19 M M
9/13/2010 9/21/2010 1:00 PM 9 0.47 M M
9/28/2010 10/04/2010 6:30 PM 7 1.63 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