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Archive of Precipitation Levels
at Quabbin and Wachusett Reservoir Watersheds
Massachusetts Water Resources Authority


MORE INFORMATION
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Back to Water Supply and Demand
Monthly Water Supply Status Report
Quabbin Levels Archive
Water System Demand Archive
Wachusett Levels Archive

Below is an archive of precipitation levels at the Quabbin and Wachusett watersheds since 2006.

2024 WATERSHED PRECIPITATION
monthly total - in inches

Month
Quabbin watershed
Wachusett watershed
07/24
5.70
2.31
06/24
2.90
2.55
05/24
4.48
4.90
04/24
3.75
4.70
03/24
8.29
7.83
02/24
1.72
0.71
01/24
5.64
6.08
TOTAL 2024
32.48 inches
29.08 inches

2023 WATERSHED PRECIPITATION
monthly total - in inches

Month
Quabbin watershed
Wachusett watershed
12/23
6.12
7.34
11/23
1.85
1.62
10/23
3.65
3.00
09/23
9.06
8.08
08/23
4.60
5.55
07/23
10.65
11.31
06/23
4.72
3.75
05/23
2.77
2.21
04/23
3.23
4.28
03/23
4.14
4.49
02/23
1.62
1.70
01/23
6.01
5.54
TOTAL 2023
58.42 inches
58.87 inches

2022 WATERSHED PRECIPITATION
monthly total - in inches

Month
Quabbin watershed
Wachusett watershed
12/22
4.62
5.83
11/22
3.32
2.44
10/22
3.72
5.38
09/22
6.87
6.13
08/22
3.50
1.31
07/22
3.94
1.85
06/22
2.87
2.24
05/22
3.39
1.84
04/22
3.95
3.28
03/22
3.56
3.04
02/22
4.61
4.07
01/22
2.24
2.51
TOTAL 2022
46.59 inches
39.92 inches

2021 WATERSHED PRECIPITATION
monthly total - in inches

Month
Quabbin watershed
Wachusett watershed
12/21
03.58
02.68
11/21
02.34
01.43
10/21
05.63
07.19
09/21
05.90
07.68
08/21
04.15
04.54
07/21
11.13
11.02
06/21
01.77
02.15
05/21
05.46
06.19
04/21
04.35
04.04
03/21
02.50
01.80
02/21
02.37
02.99
01/21
02.47
02.62
TOTAL 2021
51.65 inches
54.33 inches

2020 WATERSHED PRECIPITATION
monthly total - in inches

Month
Quabbin watershed
Wachusett watershed
12/20
05.42
05.01
11/20
04.29
05.20
10/20
06.08
04.95
09/20
02.63
01.85
08/20
04.03
02.36
07/20
03.19
03.73
06/20
02.62
02.56
05/20
01.93
02.05
04/20
05.23
06.15
03/20
03.76
03.89
02/20
03.11
03.30
01/20
01.63
01.87
TOTAL 2020
39.63 inches
37.72 inches

2019 WATERSHED PRECIPITATION
monthly total - in inches

Month
Quabbin watershed
Wachusett watershed
12/19
00.24
00.22
11/19
03.24
02.25
10/19
06.79
07.22
09/19
01.78
01.58
08/19
05.76
03.11
07/19
04.88
05.35
06/19
03.15
03.40
05/19
03.90
03.03
04/19
08.79
06.51
03/19
02.78
02.91
02/19
03.25
03.77
01/19
06.35
04.13
TOTAL 2019
50.91 inches
43.48 inches

2018 WATERSHED PRECIPITATION
monthly total - in inches

Month
Quabbin watershed
Wachusett watershed
12/18
04.69
03.94
11/18
08.16
11.09
10/18
03.97
04.57
09/18
08.65
07.24
08/18
06.20
06.69
07/18
05.82
03.63
06/18
05.44
02.02
05/18
02.02
02.06
04/18
04.94
04.94
03/18
02.42
02.42
02/18
05.24
05.24
01/18
01.96
01.96
TOTAL 2018
59.51 inches
55.80 inches

2017 WATERSHED PRECIPITATION
monthly total - in inches
Month
Quabbin watershed
Wachusett watershed
12/17
01.96
02.70
11/17
01.46
01.33
10/17
09.77
08.89
09/17
02.86
02.89
08/17
02.56
01.94
07/17
02.73
01.96
06/17
03.58
04.21
05/17
04.80
05.06
04/17
03.73
05.31
03/17
04.33
04.12
02/17
02.09
03.59
01/17
02.31
03.63
TOTAL 2017
42.18 inches
45.63 inches

2016 WATERSHED PRECIPITATION
monthly total - in inches
Month
Quabbin watershed
Wachusett watershed
12/16
02.42
03.37
11/16
03.19
03.42
10/16
02.25
06.47
09/16
02.09
01.67
08/16
04.72
03.12
07/16
02.63
00.83
06/16
02.17
01.60
05/16
02.43
02.04
04/16
02.14
02.74
03/16
03.38
03.52
02/16
04.67
03.91
01/16
01.98
01.98
TOTAL 2016
34.07 inches
34.67 inches

2015 WATERSHED PRECIPITATION
monthly total - in inches
Month
Quabbin watershed
Wachusett watershed
12/15

05.29
04.74
11/15

01.63
01.69
10/15

02.28
02.25
09/15

05.50
03.95
08/15

02.59
02.00
07/15

04.07
03.71
06/15

07.23
06.54
05/15

00.90

00.35
04/15
02.58
02.54
03/15
02.81
01.99
02/15
02.85
02.09
01/15
04.03
03.25
TOTAL 2015
41.76 inches
35.10 inches

2014 WATERSHED PRECIPITATION
monthly total - in inches
Month
Quabbin watershed
Wachusett watershed
12/14

05.37
05.05
11/14

03.38
04.07
10/14

05.68
05.43
09/14

00.86
01.10
08/14

03.84
03.60
07/14

05.81
04.93
06/14
01.74
02.27
05/14
03.82
03.76
04/14
05.48
03.65
03/14
05.54
05.91
02/14
03.87
03.61
01/14
03.72
02.51
TOTAL 2014
49.11 inches
45.89 inches

2013 WATERSHED PRECIPITATION
monthly total - in inches
Month
Quabbin watershed
Wachusett watershed
12/13
03.79
03.36
11/13
03.16
02.68
10/13
02.39
01.10
09/13
04.13
02.49
08/13
05.48
01.87
07/13
05.61
02.16
06/13
08.16
09.02
05/13
06.04
04.02
04/13
01.88
01.76
03/13
02.04
03.00
02/13
02.62
05.52
01/13
01.99
01.26
TOTAL 2013
47.29 inches
38.24 inches

2012 WATERSHED PRECIPITATION
monthly total - in inches
Month
Quabbin watershed
Wachusett watershed
12/12
03.56
03.64
11/12
00.45
00.60
10/12
03.49
05.05
09/12
06.76
04.80
08/12
04.98
06.70
07/12
02.66
03.16
06/12
03.78
05.36
05/12
04.11
04.00
04/12
01.95
03.12
03/12
00.50
01.66
02/12
01.68
01.41
01/12
02.27
03.03
TOTAL 2012
32.63 inches
38.89 inches

2011 WATERSHED PRECIPITATION
monthly total - in inches
Month
Quabbin watershed
Wachusett watershed
12/11
04.45
05.16
11/11
03.90
04.30
10/11
07.49
05.97
09/11
08.15
05.62
08/11
11.33
12.20
07/11
02.46
02.20
06/11
03.51
03.92
05/11
05.15
02.63
04/11
04.72
04.38
03/11
03.92
02.78
02/11
04.56
04.84
01/11
03.00
04.09
TOTAL 2011
62.64 inches
58.09 inches

2010 WATERSHED PRECIPITATION
monthly total - in inches
Month
Quabbin watershed
Wachusett watershed
12/10
02.45
03.87
11/10
03.18
03.55
10/10
05.78
04.41
09/10
01.92
01.36
08/10
04.30
02.01
07/10
03.58
02.55
06/10
03.51
03.92
05/10
02.83
02.51
04/10
00.98
00.95
03/10
06.11
10.98
02/10
03.68
04.26
01/10
02.49
02.52
TOTAL 2010
40.81 inches
42.89 inches

2009 WATERSHED PRECIPITATION
monthly total - in inches
Month
Quabbin watershed
Wachusett watershed
12/09
03.44
04.15
11/09
02.47
02.94
10/09
05.73
03.81
09/09
00.98
01.16
08/09
00.99
02.87
07/09
11.46
08.50
06/09
05.60
03.97
05/09
04.38
02.96
04/09

03.26
03.80
03/09
01.91
01.38
02/09
01.91
01.38
01/09
03.62
03.43
TOTAL 2009
44.75 inches
40.35 inches

2008 WATERSHED PRECIPITATION
monthly total - in inches
Month
Quabbin watershed
Wachusett watershed
12/08
07.01
04.47
11/08
03.70
03.70
10/08
02.65
01.61
09/08
10.01
06.47
08/08
04.34
04.04
07/08
09.85
05.41
06/08
05.02
02.91
05/08
01.23
01.75
04/08
04.24
03.21
03/08
04.90
02.32
02/08
10.33
03.52
01/08
00.06
00.05
TOTAL 2008
63.64 inches
39.46 inches

2007 WATERSHED PRECIPITATION
monthly total - in inches
Month
Quabbin watershed
Wachusett watershed
12/07
03.21
03.78
11/07
00.11
00.05
10/07
00.10
00.11
09/07
02.09
00.75
08/07
01.99
00.48
07/07
04.62
01.10
06/07
03.01
00.99
05/07
02.78
02.68
04/07
05.11
03.42
03/07
04.93
02.23
02/07
01.76
01.73
01/07
03.68
01.37
TOTAL 2007
33.39 inches
17.28 inches

2006 WATERSHED PRECIPITATION
monthly total - in inches
Month
Quabbin watershed
Wachusett watershed
12/06
02.12
00.80
11/06
03.99
02.47
10/06

05.52
04.25
09/06
02.49
02.78
08/06
04.66
04.07
07/06
02.62
02.87
06/06

07.13
06.81
05/06
05.41
06.64
04/06
02.07
02.44
03/06
00.66
00.50
02/06
02.74
03.48
01/06
04.69
05.16
TOTAL 2006
51.25 inches
42.27 inches

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Updated August 1, 2024

Historic Withdrawls Reservoir Levels Watershed Yield Data