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Rainfall Statistics
Rainfall in Groton 2004–2009
| |
2004 |
2005 |
2006 |
2007 |
2008 |
2009 |
| January |
1.58" |
4.26" |
5.44" |
5.15" |
3.30" |
3.70" |
| February |
2.75 |
2.87 |
2.51 |
2.28 |
7.37 |
2.43 |
| March |
4.17 |
3.73 |
0.81 |
6.53 |
7.63 |
2.84 |
| April |
6.29 |
5.92 |
3.52 |
7.97 |
4.97 |
5.96 |
| May |
2.92 |
2.26 |
8.13 |
1.61 |
3.13 |
4.66 |
| June |
1.19 |
2.06 |
7.07 |
3.95 |
4.44 |
4.49 |
| July |
4.16 |
2.24 |
4.10 |
3.00 |
3.09 |
10.62 |
| August |
6.23 |
1.35 |
7.26 |
1.82 |
4.29 |
2.45 |
| September |
5.47 |
3.42 |
3.31 |
1.67 |
9.87 |
1.79 |
| October |
2.59 |
11.90 |
6.64 |
1.87 |
2.13 |
6.54 |
| November |
4.47 |
4.72 |
5.75 |
3.53 |
4.22 |
4.13 |
| December |
3.98 |
4.24 |
2.36 |
4.81 |
6.92 |
6.47 |
| Annual |
45.93 |
48.97 |
56.90 |
44.19 |
61.36 |
48.02 |
| Average |
47.75 |
47.77 |
47.89 |
47.89 |
47.84 |
47.84 |
| Year |
74 |
75 |
76 |
77 |
78 |
79 |
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Note
Rainfall measurements have been calculated for over 70 years
(the year field indicates the year of measurement). The
total cumulative rainfall calculated for the years listed
are:
- 71st Year Cumulative Rainfall - 3,397.37"
- 72nd Year Cumulative Rainfall - 3,439.30"
- 73rd Year Cumulative rainfall - 3,487.90"
- 74th Year Cumulative rainfall - 3,533.83"
- 75th Year Cumulative rainfall - 3,582.80"
- 76th Year Cumulative rainfall - 3,639.70"
- 77th Year Cumulative rainfall - 3,745.20"
2010 Compared to 78-Year Average
| |
Precipitation
Inches
|
Cumulative Precipitation
Inches |
79-Year Average
Inches |
Excess or Deficiency
( - ) Inches |
Cumulative excess or Deficiency
( - ) Inches |
| January |
2.83
|
2.83
|
4.26
|
-1.43 |
-1.43 |
| February |
5.04
|
7.87
|
3.69
|
1.35
|
-0.08 |
| March |
15.09
|
22.96
|
4.61
|
10.48
|
10.40
|
| April |
|
22.96
|
4.24
|
|
|
| May |
|
22.96
|
3.74
|
|
|
| June |
|
22.96
|
3.38 |
|
|
| July |
|
22.96
|
3.41 |
|
|
| August |
|
22.96
|
4.15 |
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| September |
|
22.96
|
3.90 |
|
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| October |
|
22.96
|
3.74 |
|
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| November |
|
22.96
|
4.52 |
|
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| December |
|
22.96
|
4.48 |
|
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| Total |
|
|
48.12
|
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Note
- Negative ( - ) indicates
that 2009 is below the 78 year average.
- Positive (no minus) indicates that 2009 is above the
78 year average.
- All amounts above are in inches.
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