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, October 1940

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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
October 1940
1-Month 		1.38"
(35.05mm)		 3.50"
(88.90mm)		 -2.12"
(-53.85mm)		 10th Driest
Driest since:
 1924
119th Wettest
Wettest since:
 2005
Sep–Oct 1940
2-Month 		4.45"
(113.03mm)		 7.29"
(185.17mm)		 -2.84"
(-72.14mm)		 10th Driest
Driest since:
 1914
119th Wettest
Wettest since:
 2005
Aug–Oct 1940
3-Month 		6.18"
(156.97mm)		 11.19"
(284.23mm)		 -5.01"
(-127.26mm)		 1st Driest
Driest since:
 1940
128th Wettest
Wettest since:
 1955
Jul–Oct 1940
4-Month 		9.82"
(249.43mm)		 14.87"
(377.70mm)		 -5.05"
(-128.27mm)		 7th Driest
Driest since:
 1968
122nd Wettest
Wettest since:
 2021
Jun–Oct 1940
5-Month 		12.80"
(325.12mm)		 18.52"
(470.41mm)		 -5.72"
(-145.29mm)		 7th Driest
Driest since:
 1957
122nd Wettest
Wettest since:
 2021
May–Oct 1940
6-Month 		17.71"
(449.83mm)		 22.11"
(561.59mm)		 -4.40"
(-111.76mm)		 18th Driest
Driest since:
 1964
111th Wettest
Wettest since:
 2021
Apr–Oct 1940
7-Month 		23.48"
(596.39mm)		 26.02"
(660.91mm)		 -2.54"
(-64.52mm)		 34th Driest
Driest since:
 1964
95th Wettest
Wettest since:
 2021
Mar–Oct 1940
8-Month 		27.93"
(709.42mm)		 29.95"
(760.73mm)		 -2.02"
(-51.31mm)		 40th Driest
Driest since:
 1957
89th Wettest
Wettest since:
 2011
Feb–Oct 1940
9-Month 		31.99"
(812.55mm)		 33.16"
(842.26mm)		 -1.17"
(-29.71mm)		 46th Driest
Driest since:
 1957
83rd Wettest
Wettest since:
 2011
Jan–Oct 1940
10-Month 		34.38"
(873.25mm)		 36.80"
(934.72mm)		 -2.42"
(-61.47mm)		 42nd Driest
Driest since:
 1957
87th Wettest
Wettest since:
 2011
Dec 1939–Oct 1940
11-Month 		37.32"
(947.93mm)		 40.63"
(1,032.00mm)		 -3.31"
(-84.07mm)		 32nd Driest
Driest since:
 1957
96th Wettest
Wettest since:
 2011
Nov 1939–Oct 1940
12-Month 		38.66"
(981.96mm)		 44.65"
(1,134.11mm)		 -5.99"
(-152.15mm)		 20th Driest
Driest since:
 1965
108th Wettest
Wettest since:
 2011
May 1939–Oct 1940
18-Month 		56.55"
(1,436.37mm)		 66.71"
(1,694.43mm)		 -10.16"
(-258.06mm)		 12th Driest
Driest since:
 1965
116th Wettest
Wettest since:
 2006
Nov 1938–Oct 1940
24-Month 		79.12"
(2,009.65mm)		 89.26"
(2,267.20mm)		 -10.14"
(-257.55mm)		 15th Driest
Driest since:
 1966
112th Wettest
Wettest since:
 2009
Nov 1937–Oct 1940
36-Month 		136.32"
(3,462.53mm)		 133.87"
(3,400.30mm)		 2.45"
(62.23mm)		 64th Driest
Driest since:
 1966
62nd Wettest
Wettest since:
 2011
Nov 1936–Oct 1940
48-Month 		185.57"
(4,713.48mm)		 178.50"
(4,533.90mm)		 7.07"
(179.58mm)		 73rd Driest
Driest since:
 1966
52nd Wettest
Wettest since:
 2011
Nov 1935–Oct 1940
60-Month 		233.96"
(5,942.58mm)		 223.14"
(5,667.76mm)		 10.82"
(274.82mm)		 76th Driest
Driest since:
 1966
48th Wettest
Wettest since:
 2009

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