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.

California

Precipitation Rankings, September 1941

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
September 1941
1-Month 		0.20"
(5.08mm)		 0.45"
(11.43mm)		 -0.25"
(-6.35mm)		 46th Driest
Driest since:
 1974
83rd Wettest
Wettest since:
 1918
Aug–Sep 1941
2-Month 		0.70"
(17.78mm)		 0.69"
(17.53mm)		 0.01"
(0.25mm)		 85th Driest
Driest since:
 1937, 2018
44th Wettest
Wettest since:
 1983
Ties: 1921, 1945, 1955, 1973, 2017
Jul–Sep 1941
3-Month 		0.85"
(21.59mm)		 0.87"
(22.10mm)		 -0.02"
(-0.51mm)		 80th Driest
Driest since:
 1928
49th Wettest
Wettest since:
 1976
Jun–Sep 1941
4-Month 		1.30"
(33.02mm)		 1.22"
(30.99mm)		 0.08"
(2.03mm)		 80th Driest
Driest since:
 2002
49th Wettest
Wettest since:
 1982
Ties: 2015
May–Sep 1941
5-Month 		2.57"
(65.28mm)		 2.10"
(53.34mm)		 0.47"
(11.94mm)		 94th Driest
Driest since:
 1924
35th Wettest
Wettest since:
 1998
Apr–Sep 1941
6-Month 		6.39"
(162.31mm)		 3.74"
(95.00mm)		 2.65"
(67.31mm)		 122nd Driest
Driest since:
 1924
7th Wettest
Wettest since:
 1896
Ties: 1982
Mar–Sep 1941
7-Month 		10.91"
(277.11mm)		 6.95"
(176.53mm)		 3.96"
(100.58mm)		 115th Driest
Driest since:
 2008
14th Wettest
Wettest since:
 1995
Feb–Sep 1941
8-Month 		17.70"
(449.58mm)		 10.80"
(274.32mm)		 6.90"
(175.26mm)		 122nd Driest
Driest since:
 2021
7th Wettest
Wettest since:
 1998
Jan–Sep 1941
9-Month 		23.48"
(596.39mm)		 15.05"
(382.27mm)		 8.43"
(214.12mm)		 121st Driest
Driest since:
 2022
8th Wettest
Wettest since:
 1998
Dec 1940–Sep 1941
10-Month 		31.89"
(810.01mm)		 18.67"
(474.22mm)		 13.22"
(335.79mm)		 125th Driest
Driest since:
 1924
3rd Wettest
Wettest to Date
 1983
Nov 1940–Sep 1941
11-Month 		33.13"
(841.50mm)		 21.25"
(539.75mm)		 11.88"
(301.75mm)		 123rd Driest
Driest since:
 1924
5th Wettest
Wettest to Date
 1983
Oct 1940–Sep 1941
12-Month 		34.87"
(885.70mm)		 22.45"
(570.23mm)		 12.42"
(315.47mm)		 123rd Driest
Driest since:
 1924
5th Wettest
Wettest to Date
 1983
Apr 1940–Sep 1941
18-Month 		37.59"
(954.79mm)		 26.19"
(665.23mm)		 11.40"
(289.56mm)		 121st Driest
Driest since:
 2021
7th Wettest
Wettest to Date
 1983
Oct 1939–Sep 1941
24-Month 		60.61"
(1,539.49mm)		 44.90"
(1,140.46mm)		 15.71"
(399.03mm)		 121st Driest
Driest since:
 1977
6th Wettest
Wettest to Date
 1983
Oct 1938–Sep 1941
36-Month 		76.96"
(1,954.78mm)		 67.32"
(1,709.93mm)		 9.64"
(244.85mm)		 102nd Driest
Driest since:
 2022
24th Wettest
Wettest since:
 1984
Oct 1937–Sep 1941
48-Month 		110.67"
(2,811.02mm)		 89.51"
(2,273.55mm)		 21.16"
(537.47mm)		 118th Driest
Driest since:
 2015
7th Wettest
Wettest since:
 1998
Oct 1936–Sep 1941
60-Month 		133.79"
(3,398.27mm)		 111.69"
(2,836.93mm)		 22.10"
(561.34mm)		 117th Driest
Driest since:
 1991
7th Wettest
Wettest to Date
 1999

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