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 1966

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 1966
1-Month
5.12"
(130.05mm)
3.79"
(96.27mm)
1.33"
(33.78mm)
97th Driest
Driest since:
1914
32nd Wettest
Wettest since:
1938
Aug–Sep 1966
2-Month
7.09"
(180.09mm)
7.69"
(195.33mm)
-0.60"
(-15.24mm)
67th Driest
Driest since:
1984
62nd Wettest
Wettest since:
2011
Jul–Sep 1966
3-Month
10.32"
(262.13mm)
11.37"
(288.80mm)
-1.05"
(-26.67mm)
50th Driest
Driest since:
1968
79th Wettest
Wettest since:
2021
Ties: 1895, 1956, 2022
Jun–Sep 1966
4-Month
12.64"
(321.06mm)
15.02"
(381.51mm)
-2.38"
(-60.45mm)
36th Driest
Driest since:
1957
93rd Wettest
Wettest since:
1938
May–Sep 1966
5-Month
16.39"
(416.31mm)
18.61"
(472.69mm)
-2.22"
(-56.38mm)
35th Driest
Driest since:
1964
94th Wettest
Wettest since:
1938
Apr–Sep 1966
6-Month
17.59"
(446.79mm)
22.51"
(571.75mm)
-4.92"
(-124.96mm)
15th Driest
Driest since:
1964
114th Wettest
Wettest since:
1938
Mar–Sep 1966
7-Month
20.09"
(510.29mm)
26.45"
(671.83mm)
-6.36"
(-161.54mm)
10th Driest
Driest since:
1965
119th Wettest
Wettest since:
1938
Feb–Sep 1966
8-Month
23.28"
(591.31mm)
29.66"
(753.36mm)
-6.38"
(-162.05mm)
9th Driest
Driest since:
1957
120th Wettest
Wettest since:
2008
Jan–Sep 1966
9-Month
26.99"
(685.55mm)
33.30"
(845.82mm)
-6.31"
(-160.27mm)
10th Driest
Driest since:
1957
119th Wettest
Wettest since:
2008
Dec 1965–Sep 1966
10-Month
28.99"
(736.35mm)
37.13"
(943.10mm)
-8.14"
(-206.75mm)
7th Driest
Driest since:
1957
121st Wettest
Wettest since:
2008
Nov 1965–Sep 1966
11-Month
31.44"
(798.58mm)
41.15"
(1,045.21mm)
-9.71"
(-246.63mm)
4th Driest
Driest since:
1965
124th Wettest
Wettest since:
2008
Oct 1965–Sep 1966
12-Month
34.21"
(868.93mm)
44.66"
(1,134.36mm)
-10.45"
(-265.43mm)
3rd Driest
Driest since:
1965
125th Wettest
Wettest since:
2006
Apr 1965–Sep 1966
18-Month
49.08"
(1,246.63mm)
67.07"
(1,703.58mm)
-17.99"
(-456.95mm)
2nd Driest
Driest since:
1965
126th Wettest
Wettest since:
2006
Oct 1964–Sep 1966
24-Month
65.67"
(1,668.02mm)
89.25"
(2,266.95mm)
-23.58"
(-598.93mm)
1st Driest
Driest since:
1966
126th Wettest
Wettest since:
2007
Oct 1963–Sep 1966
36-Month
101.64"
(2,581.66mm)
133.88"
(3,400.55mm)
-32.24"
(-818.89mm)
1st Driest
Driest since:
1966
125th Wettest
Wettest since:
2008
Oct 1962–Sep 1966
48-Month
143.17"
(3,636.52mm)
178.50"
(4,533.90mm)
-35.33"
(-897.38mm)
1st Driest
Driest since:
1966
124th Wettest
Wettest since:
2009
Oct 1961–Sep 1966
60-Month
182.28"
(4,629.91mm)
223.10"
(5,666.74mm)
-40.82"
(-1,036.83mm)
1st Driest
Driest since:
1966
123rd Wettest
Wettest since:
2010

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