Station Overview Station Location
Station Number MA-BA-71 Latitude 41.680992
Station Name Chatham 1.6 WNW Longitude -69.992134
County Barnstable Elevation (ft) 27



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 19 3.72 6.83 14 6.83 14 0.00 0 0 13 0 0.0 0 0
Nov 19 3.98 3.93 12 3.93 12 0.00 0 0 12 0 0.2 1 0
Dec 19 4.07 7.30 11 7.30 11 0.00 0 0 11 0 1.5 3 2
Jan 20 3.84 1.53 9 1.53 9 0.00 0 0 8 0 1.6 2 2
Feb 20 3.76 3.89 8 3.89 8 0.00 0 0 8 0 0.0 0 0
March 20 4.60 1.97 10 1.97 10 0.00 0 0 10 0 0.0 0 0
April 20 4.43 3.69 9 3.69 9 0.00 0 0 8 0 0.5 1 1
May 20 3.62 1.64 11 1.64 11 0.00 0 0 10 1 0.0 0 0
June 20 3.55 1.76 8 1.76 8 0.00 0 0 6 0 0.0 0 0
July 20 3.08 0.92 5 0.92 5 0.00 0 0 5 0 0.0 0 0
Aug 20 3.37 2.03 8 2.03 8 0.00 0 0 7 0 0.0 0 0
Sept 20 3.74 2.11 8 2.11 8 0.00 0 0 8 0 0.0 0 0
Water Year Totals: 45.76" 37.60" 113 days 37.60" 113 0.00" 0 days 0 106 days 1 days 3.8" 7 days 5 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
10/1/2019
10/2/2019 0.05
10/3/2019
10/4/2019
10/5/2019
10/6/2019
10/7/2019
10/8/2019 0.39
10/9/2019 0.62
10/10/2019 1.35
10/11/2019
10/12/2019 0.60
10/13/2019 0.03
10/14/2019 0.19
10/15/2019
10/16/2019
10/17/2019 0.96
10/18/2019
10/19/2019
10/20/2019
10/21/2019 0.30
10/22/2019
10/23/2019 0.43
10/24/2019
10/25/2019
10/26/2019 0.00
10/27/2019
10/28/2019 1.36
10/29/2019
10/30/2019 0.10
10/31/2019 0.45
11/1/2019 0.04
11/2/2019
11/3/2019 0.01
11/4/2019
11/5/2019 0.74
11/6/2019
11/7/2019
11/8/2019 0.39
11/9/2019
11/10/2019
11/11/2019
11/12/2019 0.39
11/13/2019
11/14/2019
11/15/2019
11/16/2019
11/17/2019
11/18/2019 0.50
11/19/2019 0.05
11/20/2019 0.11
11/21/2019
11/22/2019 0.32
11/23/2019
11/24/2019 0.91
11/25/2019
11/26/2019
11/27/2019 0.19
11/28/2019 0.28
11/29/2019
11/30/2019
12/1/2019 M
12/2/2019 0.82
12/3/2019 0.44
12/4/2019
12/5/2019
12/6/2019
12/7/2019
12/8/2019
12/9/2019 M
12/10/2019 0.59
12/11/2019 0.13
12/12/2019
12/13/2019 0.11
12/14/2019 1.84
12/15/2019
12/16/2019
12/17/2019 0.78
12/18/2019 0.10
12/19/2019
12/20/2019
12/21/2019
12/22/2019
12/23/2019
12/24/2019
12/25/2019
12/26/2019
12/27/2019
12/28/2019
12/29/2019 0.05
12/30/2019 1.68
12/31/2019 0.76
Day of YearDaily PrcpMultiday Prcp
1/1/2020
1/2/2020
1/3/2020 0.21
1/4/2020
1/5/2020 0.38
1/6/2020
1/7/2020 0.01
1/8/2020 0.50
1/9/2020 0.04
1/10/2020 0.00
1/11/2020
1/12/2020
1/13/2020
1/14/2020
1/15/2020
1/16/2020
1/17/2020
1/18/2020 0.10
1/19/2020 0.20
1/20/2020 M
1/21/2020
1/22/2020
1/23/2020
1/24/2020
1/25/2020 M
1/26/2020 0.09
1/27/2020
1/28/2020
1/29/2020
1/30/2020
1/31/2020
2/1/2020 0.05
2/2/2020
2/3/2020
2/4/2020
2/5/2020 0.11
2/6/2020 0.79
2/7/2020 0.38
2/8/2020
2/9/2020
2/10/2020 M
2/11/2020 M
2/12/2020
2/13/2020 0.93
2/14/2020
2/15/2020
2/16/2020
2/17/2020
2/18/2020 0.16
2/19/2020
2/20/2020
2/21/2020
2/22/2020
2/23/2020
2/24/2020
2/25/2020 0.13
2/26/2020
2/27/2020 1.34
2/28/2020
2/29/2020
3/1/2020
3/2/2020
3/3/2020 0.06
3/4/2020 0.15
3/5/2020
3/6/2020
3/7/2020
3/8/2020
3/9/2020
3/10/2020
3/11/2020
3/12/2020
3/13/2020 0.18
3/14/2020
3/15/2020
3/16/2020
3/17/2020
3/18/2020
3/19/2020 M
3/20/2020
3/21/2020
3/22/2020
3/23/2020 0.66
3/24/2020 0.37
3/25/2020
3/26/2020
3/27/2020 0.03
3/28/2020 0.14
3/29/2020 0.31
3/30/2020 0.06
3/31/2020 0.01
Day of YearDaily PrcpMultiday Prcp
4/1/2020
4/2/2020 M
4/3/2020
4/4/2020
4/5/2020
4/6/2020
4/7/2020
4/8/2020 0.07
4/9/2020 0.23
4/10/2020
4/11/2020
4/12/2020
4/13/2020 0.27
4/14/2020
4/15/2020 0.33
4/16/2020
4/17/2020 0.00
4/18/2020 1.12
4/19/2020
4/20/2020
4/21/2020
4/22/2020
4/23/2020
4/24/2020
4/25/2020
4/26/2020 1.42
4/27/2020 0.19
4/28/2020 0.06
4/29/2020
4/30/2020
5/1/2020 0.83
5/2/2020 0.12
5/3/2020
5/4/2020 0.01
5/5/2020
5/6/2020 M
5/7/2020 0.17
5/8/2020 0.03
5/9/2020 0.20
5/10/2020
5/11/2020
5/12/2020
5/13/2020
5/14/2020
5/15/2020 0.03
5/16/2020 0.20
5/17/2020
5/18/2020
5/19/2020
5/20/2020
5/21/2020
5/22/2020
5/23/2020
5/24/2020 T
5/25/2020
5/26/2020
5/27/2020
5/28/2020
5/29/2020 0.03
5/30/2020 0.02
5/31/2020
6/1/2020
6/2/2020 0.04
6/3/2020 0.00
6/4/2020
6/5/2020 0.08
6/6/2020 0.43
6/7/2020
6/8/2020
6/9/2020
6/10/2020
6/11/2020
6/12/2020
6/13/2020
6/14/2020
6/15/2020
6/16/2020
6/17/2020
6/18/2020
6/19/2020
6/20/2020
6/21/2020
6/22/2020
6/23/2020 0.00
6/24/2020
6/25/2020
6/26/2020
6/27/2020 0.69
6/28/2020
6/29/2020 0.50
6/30/2020 0.02
Day of YearDaily PrcpMultiday Prcp
7/1/2020
7/2/2020
7/3/2020
7/4/2020 0.07
7/5/2020
7/6/2020 0.52
7/7/2020
7/8/2020
7/9/2020
7/10/2020
7/11/2020 0.11
7/12/2020
7/13/2020
7/14/2020
7/15/2020
7/16/2020
7/17/2020 0.04
7/18/2020
7/19/2020
7/20/2020
7/21/2020
7/22/2020
7/23/2020
7/24/2020
7/25/2020
7/26/2020
7/27/2020
7/28/2020
7/29/2020
7/30/2020
7/31/2020 0.18
8/1/2020
8/2/2020
8/3/2020
8/4/2020
8/5/2020
8/6/2020
8/7/2020
8/8/2020
8/9/2020 0.00
8/10/2020
8/11/2020
8/12/2020
8/13/2020
8/14/2020
8/15/2020 0.02
8/16/2020 0.35
8/17/2020 0.84
8/18/2020 0.22
8/19/2020
8/20/2020
8/21/2020
8/22/2020
8/23/2020
8/24/2020
8/25/2020 0.05
8/26/2020
8/27/2020 0.50
8/28/2020
8/29/2020
8/30/2020 0.05
8/31/2020
9/1/2020
9/2/2020 0.38
9/3/2020
9/4/2020 0.84
9/5/2020
9/6/2020
9/7/2020
9/8/2020
9/9/2020 0.01
9/10/2020 0.20
9/11/2020 0.20
9/12/2020
9/13/2020
9/14/2020
9/15/2020
9/16/2020
9/17/2020
9/18/2020
9/19/2020 0.33
9/20/2020
9/21/2020
9/22/2020
9/23/2020
9/24/2020
9/25/2020
9/26/2020
9/27/2020
9/28/2020 0.10
9/29/2020
9/30/2020 0.05



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/2/2019 7:00 PM 0.05 M M M M
10/8/2019 7:00 PM 0.39 M M M M
10/9/2019 7:00 PM 0.62 M M M M
10/10/2019 7:00 AM 1.35 M M M M
10/12/2019 7:00 AM 0.60 M M M M
10/13/2019 7:00 AM 0.03 M M M M
10/14/2019 7:00 PM 0.19 M M M M
10/17/2019 7:00 AM 0.96 M M M M
10/21/2019 7:00 AM 0.30 M M M M
10/23/2019 7:00 AM 0.43 M M M M
10/26/2019 7:00 AM 0.00 0.0 M M M
10/28/2019 7:00 AM 1.36 M M M M
10/30/2019 7:00 AM 0.10 M M M M
10/31/2019 7:00 AM 0.45 M M M M
11/1/2019 7:00 AM 0.04 M M M M
11/3/2019 7:00 AM 0.01 M M M M
11/5/2019 7:00 AM 0.74 M M M M
11/8/2019 7:00 AM 0.39 M M M M
11/12/2019 7:00 PM 0.39 0.2 M M M light snow falling 8pm , .20" mainly on grass ,deck and bare ground
11/18/2019 7:00 AM 0.50 M M M M
11/19/2019 7:00 AM 0.05 M M M M
11/20/2019 7:00 PM 0.11 M M M M
11/22/2019 7:00 AM 0.32 M M M M
11/24/2019 7:00 AM 0.91 M M M M
11/27/2019 7:00 AM 0.19 M M M M
11/28/2019 7:00 AM 0.28 M M M M
12/1/2019 7:00 AM M M M M M {EDIT: Observer reported 0.69 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 0.69 to NA until observer can be contacted to verify. Submission Time Before EDIT: 12/02/2019 5:35 PM CoCoSTAFF DNT}
12/2/2019 7:00 AM 0.82 M M M M
12/3/2019 7:00 PM 0.44 0.2 M 0.2 M
12/9/2019 7:00 AM M M M M M {EDIT: Observer reported 1.87 for new precip. Surrounding reports of 0.00 to 0.02 indicate this could be a multi-day report. Changed report of 1.87 to NA until observer can be contacted to verify. Submission Time Before EDIT: 12/10/2019 7:36 AM CoCoSTAFF DNT}
12/10/2019 7:00 AM 0.59 M M M M
12/11/2019 7:00 AM 0.13 1.0 M 1.0 M
12/13/2019 7:00 AM 0.11 M M M M
12/14/2019 7:00 AM 1.84 M M M M
12/17/2019 7:00 PM 0.78 0.3 M 0.0 M
12/18/2019 7:00 AM 0.10 T M M M
12/29/2019 7:00 AM 0.05 M M M M
12/30/2019 7:00 PM 1.68 0.0 0.00 0.0 0.00
12/31/2019 7:00 AM 0.76 M M M M
1/3/2020 7:00 AM 0.21 T M M M
1/5/2020 7:00 PM 0.38 0.0 0.00 M M
1/7/2020 7:00 PM 0.01 M M M M
1/8/2020 7:00 AM 0.50 M M M M
1/9/2020 7:00 AM 0.04 M M M M {EDIT: Observer reported 2.0 for new snowfall with a melt core of 0.04. Surround snow reports of 0.0's indicate this could be a typo/date error. Changed reports of 2.0 and 0.04 to NA until observer can be contacted to verify. Submission Time Before EDIT: 1/11/2020 8:10 AM CoCoSTAFF DNT}
1/10/2020 7:00 AM 0.00 0.0 M M M
1/18/2020 7:00 AM 0.10 1.1 0.10 1.1 M
1/19/2020 7:00 AM 0.20 0.0 0.00 0.0 0.00
1/20/2020 7:00 PM M 0.5 M 0.5 M
1/25/2020 7:00 AM M 0.0 0.00 0.0 0.00 {EDIT: observer reported 0.64 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 0.64 to NA until observer can be contacted to verify. Submission Time Before EDIT: 1/26/2020 8:37 AM CoCoSTAFF DNT}
1/26/2020 7:00 AM 0.09 M M M M
2/1/2020 7:00 AM 0.05 M M M M
2/5/2020 7:00 PM 0.11 M M M M
2/6/2020 7:00 AM 0.79 M M M M
2/7/2020 7:00 AM 0.38 M M M M
2/10/2020 7:00 AM M M M M M {EDIT: Observer reported 0.33 for new precip. This is high compared to surrounding reports of 0.03 to 0.07 and appears to be a multi-day report or a typo. Changed report of 0.33 to NA until observer can be contacted to verify. Submission Time Before EDIT: 2/112020 8:16 CoCoSTAFF DNT}
2/11/2020 7:00 AM M M M M M {EDIT: Observer reported 0.62 for new precip. This is high compared to surrounding reports of 0.16 to 0.23 and appears to be a multi-day report instead of a 24 hour report. Changed report of 0.62 to NA until observer can be contacted to verify. Submission Time Before EDIT: 2/12/2020 7:42 AM CoCoSTAFF DNT}
2/13/2020 7:00 AM 0.93 0.0 0.00 0.0 0.00
2/18/2020 7:00 AM 0.16 M M M M
2/25/2020 7:00 AM 0.13 M M M M
2/27/2020 7:00 PM 1.34 M M M M
3/3/2020 7:00 PM 0.06 M M M M
3/4/2020 7:00 PM 0.15 M M M M
3/13/2020 7:00 PM 0.18 M M M M
3/19/2020 7:00 AM M M M M M {EDIT: Observer reported 1.10 for new precip. QPE data and surrounding reports of 0.04 to 0.12 indicate this could be a decimal typo or a multi-day report. Changed report of 1.10 to NA until observer can be contacted to verify. Submission Time Before EDIT: 3/19/2020 6:42 PM CoCoSTAFF DNT}
3/23/2020 7:00 AM 0.66 M M M M
3/24/2020 7:00 AM 0.37 M M M M
3/27/2020 7:00 AM 0.03 M M M M
3/28/2020 7:00 AM 0.14 M M M M
3/29/2020 7:00 AM 0.31 M M M M
3/30/2020 7:00 AM 0.06 M M M M
3/31/2020 7:00 AM 0.01 M M M M
4/2/2020 7:00 AM M M M M M {EDIT: Observer reported 0.87 for new precip. This is high compared to surrounding reports of ~0.40's and appears to be an error. Changed report of 0.87 to NA until observer can be contacted to verify. Submission Time Before EDIT: 4/03/2020 7:37 AM CoCoSTAFF DNT}
4/8/2020 7:00 AM 0.07 M M M M
4/9/2020 7:00 AM 0.23 M M M M
4/13/2020 7:00 AM 0.27 M M M M
4/15/2020 7:00 AM 0.33 M M M M
4/17/2020 7:00 AM 0.00 0.0 M M M
4/18/2020 7:00 PM 1.12 0.5 M 0.5 M early am wet snow
4/26/2020 7:00 AM 1.42 M M M M
4/27/2020 7:00 AM 0.19 M M M M
4/28/2020 7:00 AM 0.06 M M M M
5/1/2020 7:00 AM 0.83 M M M M
5/2/2020 7:00 AM 0.12 M M M M
5/4/2020 7:00 AM 0.01 M M M M
5/6/2020 7:00 AM M M M M M {EDIT: Observer reported 0.32 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 0.32 to NA until observer can be contacted to verify. Submission Time Before EDIT: 5/07/2020 7:20 AM CoCoSTAFF DNT}
5/7/2020 7:00 AM 0.17 M M M M
5/8/2020 7:00 AM 0.03 M M M M
5/9/2020 7:00 AM 0.20 M M M M scattered snow showers between 10am-12pm!
5/15/2020 7:00 AM 0.03 M M M M
5/16/2020 7:00 AM 0.20 M M M M
5/24/2020 7:00 AM T M M M M
5/29/2020 7:00 AM 0.03 M M M M
5/30/2020 7:00 AM 0.02 M M M M
6/2/2020 7:00 AM 0.04 M M M M
6/3/2020 7:00 AM 0.00 0.0 M M M
6/5/2020 7:00 AM 0.08 M M M M
6/6/2020 7:00 AM 0.43 M M M M
6/23/2020 7:00 AM 0.00 0.0 M M M
6/27/2020 7:00 AM 0.69 M M M M the most rain we have seen in over a month
6/29/2020 7:00 PM 0.50 M M M M heavy thunderstorms early am with frequent lightning strikes
6/30/2020 7:00 AM 0.02 M M M M
7/4/2020 7:00 AM 0.07 M M M M
7/6/2020 7:00 PM 0.52 M M M M
7/11/2020 7:00 AM 0.11 M M M M
7/17/2020 7:00 AM 0.04 M M M M
7/31/2020 7:00 PM 0.18 M M M M
8/9/2020 7:00 AM 0.00 0.0 M M M
8/15/2020 7:00 PM 0.02 M M M M misty conditions throughout the day , brief shower early evening
8/16/2020 7:00 PM 0.35 M M M M
8/17/2020 7:00 PM 0.84 M M M M {EDIT: Observer reported 0.80 for new precip. This is standing out as an error because this is not a 24 hour report. Changed report of 0.80 to NA until observer can be contacted and the correct report form can be submitted. Submission Time Before EDIT: 8/17/2020 8:48 AM CoCoSTAFF DNT}
8/18/2020 7:00 PM 0.22 M M M M
8/25/2020 7:00 PM 0.05 M M M M
8/27/2020 7:00 PM 0.50 M M M M
8/30/2020 7:00 AM 0.05 M M M M
9/2/2020 7:00 PM 0.38 M M M M
9/4/2020 7:00 AM 0.84 M M M M
9/9/2020 7:00 PM 0.01 M M M M
9/10/2020 7:00 PM 0.20 M M M M
9/11/2020 7:00 AM 0.20 M M M M
9/19/2020 7:00 AM 0.33 M M M M
9/28/2020 7:00 PM 0.10 M M M M
9/30/2020 7:00 AM 0.05 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes



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