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 1990

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 1990
1-Month
1.91"
(48.51mm)
3.79"
(96.27mm)
-1.88"
(-47.76mm)
20th Driest
Driest since:
1914
109th Wettest
Wettest since:
1938
Aug–Sep 1990
2-Month
9.28"
(235.71mm)
7.69"
(195.33mm)
1.59"
(40.38mm)
90th Driest
Driest since:
1984
39th Wettest
Wettest since:
2011
Jul–Sep 1990
3-Month
12.85"
(326.39mm)
11.37"
(288.80mm)
1.48"
(37.59mm)
91st Driest
Driest since:
1968
38th Wettest
Wettest since:
2021
Jun–Sep 1990
4-Month
14.84"
(376.94mm)
15.02"
(381.51mm)
-0.18"
(-4.57mm)
61st Driest
Driest since:
1957
68th Wettest
Wettest since:
1938
May–Sep 1990
5-Month
21.96"
(557.78mm)
18.61"
(472.69mm)
3.35"
(85.09mm)
98th Driest
Driest since:
1964
31st Wettest
Wettest since:
1938
Apr–Sep 1990
6-Month
26.53"
(673.86mm)
22.51"
(571.75mm)
4.02"
(102.11mm)
102nd Driest
Driest since:
1964
27th Wettest
Wettest since:
1938
Mar–Sep 1990
7-Month
29.10"
(739.14mm)
26.45"
(671.83mm)
2.65"
(67.31mm)
89th Driest
Driest since:
1965
40th Wettest
Wettest since:
1938
Feb–Sep 1990
8-Month
32.96"
(837.18mm)
29.66"
(753.36mm)
3.30"
(83.82mm)
96th Driest
Driest since:
1957
33rd Wettest
Wettest since:
2008
Ties: 1919
Jan–Sep 1990
9-Month
37.62"
(955.55mm)
33.30"
(845.82mm)
4.32"
(109.73mm)
101st Driest
Driest since:
1957
28th Wettest
Wettest since:
2008
Dec 1989–Sep 1990
10-Month
38.72"
(983.49mm)
37.13"
(943.10mm)
1.59"
(40.39mm)
76th Driest
Driest since:
1957
52nd Wettest
Wettest since:
2008
Nov 1989–Sep 1990
11-Month
43.39"
(1,102.11mm)
41.15"
(1,045.21mm)
2.24"
(56.90mm)
80th Driest
Driest since:
1965
48th Wettest
Wettest since:
2008
Oct 1989–Sep 1990
12-Month
49.88"
(1,266.95mm)
44.66"
(1,134.36mm)
5.22"
(132.59mm)
96th Driest
Driest since:
1965
32nd Wettest
Wettest since:
2006
Apr 1989–Sep 1990
18-Month
80.98"
(2,056.89mm)
67.07"
(1,703.58mm)
13.91"
(353.31mm)
122nd Driest
Driest since:
1965
6th Wettest
Wettest since:
2006
Oct 1988–Sep 1990
24-Month
99.83"
(2,535.68mm)
89.25"
(2,266.95mm)
10.58"
(268.73mm)
102nd Driest
Driest since:
1966
25th Wettest
Wettest since:
2007
Oct 1987–Sep 1990
36-Month
139.87"
(3,552.70mm)
133.88"
(3,400.55mm)
5.99"
(152.15mm)
78th Driest
Driest since:
1966
48th Wettest
Wettest since:
2008
Oct 1986–Sep 1990
48-Month
190.62"
(4,841.75mm)
178.50"
(4,533.90mm)
12.12"
(307.85mm)
85th Driest
Driest since:
1966
40th Wettest
Wettest since:
2009
Oct 1985–Sep 1990
60-Month
234.49"
(5,956.05mm)
223.10"
(5,666.74mm)
11.39"
(289.31mm)
79th Driest
Driest since:
1966
45th Wettest
Wettest since:
2010

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