Statewide Rankings

Statewide Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Massachusetts

Precipitation Rankings, September 2009

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
September 2009
1-Month
2.11"
(53.59mm)
3.79"
(96.27mm)
-1.68"
(-42.68mm)
24th Driest
Driest since:
1914
105th Wettest
Wettest since:
1938
Aug–Sep 2009
2-Month
6.83"
(173.48mm)
7.69"
(195.33mm)
-0.86"
(-21.85mm)
55th Driest
Driest since:
1984
74th Wettest
Wettest since:
2011
Jul–Sep 2009
3-Month
15.41"
(391.41mm)
11.37"
(288.80mm)
4.04"
(102.61mm)
113th Driest
Driest since:
1968
16th Wettest
Wettest since:
2021
Jun–Sep 2009
4-Month
21.01"
(533.65mm)
15.02"
(381.51mm)
5.99"
(152.14mm)
121st Driest
Driest since:
1957
8th Wettest
Wettest since:
1938
May–Sep 2009
5-Month
24.84"
(630.94mm)
18.61"
(472.69mm)
6.23"
(158.25mm)
119th Driest
Driest since:
1964
10th Wettest
Wettest since:
1938
Apr–Sep 2009
6-Month
29.00"
(736.60mm)
22.51"
(571.75mm)
6.49"
(164.85mm)
118th Driest
Driest since:
1964
11th Wettest
Wettest since:
1938
Mar–Sep 2009
7-Month
32.02"
(813.31mm)
26.45"
(671.83mm)
5.57"
(141.48mm)
112th Driest
Driest since:
1965
17th Wettest
Wettest since:
1938
Ties: 1955
Feb–Sep 2009
8-Month
33.81"
(858.77mm)
29.66"
(753.36mm)
4.15"
(105.41mm)
102nd Driest
Driest since:
1957
27th Wettest
Wettest since:
2008
Jan–Sep 2009
9-Month
37.61"
(955.29mm)
33.30"
(845.82mm)
4.31"
(109.47mm)
100th Driest
Driest since:
1957
29th Wettest
Wettest since:
2008
Dec 2008–Sep 2009
10-Month
44.68"
(1,134.87mm)
37.13"
(943.10mm)
7.55"
(191.77mm)
118th Driest
Driest since:
1957
10th Wettest
Wettest since:
2008
Nov 2008–Sep 2009
11-Month
48.49"
(1,231.65mm)
41.15"
(1,045.21mm)
7.34"
(186.44mm)
110th Driest
Driest since:
1965
18th Wettest
Wettest since:
2008
Oct 2008–Sep 2009
12-Month
51.33"
(1,303.78mm)
44.66"
(1,134.36mm)
6.67"
(169.42mm)
106th Driest
Driest since:
1965
22nd Wettest
Wettest since:
2006
Apr 2008–Sep 2009
18-Month
80.72"
(2,050.29mm)
67.07"
(1,703.58mm)
13.65"
(346.71mm)
120th Driest
Driest since:
1965
8th Wettest
Wettest since:
2006
Oct 2007–Sep 2009
24-Month
109.62"
(2,784.35mm)
89.25"
(2,266.95mm)
20.37"
(517.40mm)
125th Driest
Driest since:
1966
2nd Wettest
Wettest since:
2007
Oct 2006–Sep 2009
36-Month
156.42"
(3,973.07mm)
133.88"
(3,400.55mm)
22.54"
(572.52mm)
118th Driest
Driest since:
1966
8th Wettest
Wettest since:
2008
Oct 2005–Sep 2009
48-Month
219.51"
(5,575.55mm)
178.50"
(4,533.90mm)
41.01"
(1,041.65mm)
124th Driest
Driest since:
1966
1st Wettest
Wettest to Date
2009
Oct 2004–Sep 2009
60-Month
263.96"
(6,704.58mm)
223.10"
(5,666.74mm)
40.86"
(1,037.84mm)
120th Driest
Driest since:
1966
4th Wettest
Wettest to Date
2010

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