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 1911

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
September 1911
1-Month 		0.44"
(11.18mm)		 0.45"
(11.43mm)		 -0.01"
(-0.25mm)		 84th Driest
Driest since:
 1974
45th Wettest
Wettest since:
 1918
Aug–Sep 1911
2-Month 		0.46"
(11.68mm)		 0.69"
(17.53mm)		 -0.23"
(-5.85mm)		 53rd Driest
Driest since:
 1937, 2018
76th Wettest
Wettest since:
 1983
Ties: 1922, 2021
Jul–Sep 1911
3-Month 		0.71"
(18.03mm)		 0.87"
(22.10mm)		 -0.16"
(-4.07mm)		 59th Driest
Driest since:
 1928
70th Wettest
Wettest since:
 1976
Ties: 1922
Jun–Sep 1911
4-Month 		0.89"
(22.61mm)		 1.22"
(30.99mm)		 -0.33"
(-8.38mm)		 43rd Driest
Driest since:
 2002
86th Wettest
Wettest since:
 1982
Ties: 2021
May–Sep 1911
5-Month 		1.49"
(37.85mm)		 2.10"
(53.34mm)		 -0.61"
(-15.49mm)		 33rd Driest
Driest since:
 1924
96th Wettest
Wettest since:
 1998
Ties: 1960, 1969
Apr–Sep 1911
6-Month 		3.13"
(79.50mm)		 3.74"
(95.00mm)		 -0.61"
(-15.50mm)		 43rd Driest
Driest since:
 1924
86th Wettest
Wettest since:
 1896
Ties: 1950, 1961
Mar–Sep 1911
7-Month 		8.18"
(207.77mm)		 6.95"
(176.53mm)		 1.23"
(31.24mm)		 94th Driest
Driest since:
 2008
35th Wettest
Wettest since:
 1995
Feb–Sep 1911
8-Month 		11.18"
(283.97mm)		 10.80"
(274.32mm)		 0.38"
(9.65mm)		 79th Driest
Driest since:
 2021
50th Wettest
Wettest since:
 1998
Jan–Sep 1911
9-Month 		21.32"
(541.53mm)		 15.05"
(382.27mm)		 6.27"
(159.26mm)		 112th Driest
Driest since:
 2022
17th Wettest
Wettest since:
 1998
Dec 1910–Sep 1911
10-Month 		23.10"
(586.74mm)		 18.67"
(474.22mm)		 4.43"
(112.52mm)		 99th Driest
Driest since:
 1924
29th Wettest
Wettest since:
 1983
Nov 1910–Sep 1911
11-Month 		25.33"
(643.38mm)		 21.25"
(539.75mm)		 4.08"
(103.63mm)		 99th Driest
Driest since:
 1924
29th Wettest
Wettest since:
 1983
Oct 1910–Sep 1911
12-Month 		26.12"
(663.45mm)		 22.45"
(570.23mm)		 3.67"
(93.22mm)		 97th Driest
Driest since:
 1924
31st Wettest
Wettest since:
 1983
Apr 1910–Sep 1911
18-Month 		27.86"
(707.64mm)		 26.19"
(665.23mm)		 1.67"
(42.41mm)		 84th Driest
Driest since:
 2021
44th Wettest
Wettest since:
 1983
Ties: 1999
Oct 1909–Sep 1911
24-Month 		47.26"
(1,200.40mm)		 44.90"
(1,140.46mm)		 2.36"
(59.94mm)		 83rd Driest
Driest since:
 1977
44th Wettest
Wettest since:
 1983
Oct 1908–Sep 1911
36-Month 		75.47"
(1,916.94mm)		 67.32"
(1,709.93mm)		 8.15"
(207.01mm)		 98th Driest
Driest since:
 2022
28th Wettest
Wettest since:
 1984
Oct 1907–Sep 1911
48-Month 		94.35"
(2,396.49mm)		 89.51"
(2,273.55mm)		 4.84"
(122.94mm)		 86th Driest
Driest since:
 2015
39th Wettest
Wettest since:
 1998
Oct 1906–Sep 1911
60-Month 		125.55"
(3,188.97mm)		 111.69"
(2,836.93mm)		 13.86"
(352.04mm)		 104th Driest
Driest since:
 1991
20th Wettest
Wettest since:
 1999

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