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 1971

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
September 1971
1-Month 		0.56"
(14.22mm)		 0.45"
(11.43mm)		 0.11"
(2.79mm)		 93rd Driest
Driest since:
 1974
36th Wettest
Wettest since:
 1918
Ties: 1909
Aug–Sep 1971
2-Month 		0.88"
(22.35mm)		 0.69"
(17.53mm)		 0.19"
(4.82mm)		 98th Driest
Driest since:
 1937, 2018
31st Wettest
Wettest since:
 1983
Ties: 1984
Jul–Sep 1971
3-Month 		1.03"
(26.16mm)		 0.87"
(22.10mm)		 0.16"
(4.06mm)		 91st Driest
Driest since:
 1928
38th Wettest
Wettest since:
 1976
Jun–Sep 1971
4-Month 		1.44"
(36.58mm)		 1.22"
(30.99mm)		 0.22"
(5.59mm)		 95th Driest
Driest since:
 2002
34th Wettest
Wettest since:
 1982
May–Sep 1971
5-Month 		2.97"
(75.44mm)		 2.10"
(53.34mm)		 0.87"
(22.10mm)		 113th Driest
Driest since:
 1924
16th Wettest
Wettest since:
 1998
Apr–Sep 1971
6-Month 		4.15"
(105.41mm)		 3.74"
(95.00mm)		 0.41"
(10.41mm)		 92nd Driest
Driest since:
 1924
37th Wettest
Wettest since:
 1896
Ties: 1955
Mar–Sep 1971
7-Month 		7.41"
(188.21mm)		 6.95"
(176.53mm)		 0.46"
(11.68mm)		 87th Driest
Driest since:
 2008
42nd Wettest
Wettest since:
 1995
Feb–Sep 1971
8-Month 		8.13"
(206.50mm)		 10.80"
(274.32mm)		 -2.67"
(-67.82mm)		 41st Driest
Driest since:
 2021
88th Wettest
Wettest since:
 1998
Jan–Sep 1971
9-Month 		10.52"
(267.21mm)		 15.05"
(382.27mm)		 -4.53"
(-115.06mm)		 27th Driest
Driest since:
 2022
102nd Wettest
Wettest since:
 1998
Dec 1970–Sep 1971
10-Month 		16.19"
(411.23mm)		 18.67"
(474.22mm)		 -2.48"
(-62.99mm)		 59th Driest
Driest since:
 1924
69th Wettest
Wettest since:
 1983
Nov 1970–Sep 1971
11-Month 		22.75"
(577.85mm)		 21.25"
(539.75mm)		 1.50"
(38.10mm)		 85th Driest
Driest since:
 1924
43rd Wettest
Wettest since:
 1983
Oct 1970–Sep 1971
12-Month 		23.72"
(602.49mm)		 22.45"
(570.23mm)		 1.27"
(32.26mm)		 82nd Driest
Driest since:
 1924
46th Wettest
Wettest since:
 1983
Apr 1970–Sep 1971
18-Month 		25.57"
(649.48mm)		 26.19"
(665.23mm)		 -0.62"
(-15.75mm)		 67th Driest
Driest since:
 2021
61st Wettest
Wettest since:
 1983
Oct 1969–Sep 1971
24-Month 		46.18"
(1,172.97mm)		 44.90"
(1,140.46mm)		 1.28"
(32.51mm)		 77th Driest
Driest since:
 1977
50th Wettest
Wettest since:
 1983
Ties: 1937
Oct 1968–Sep 1971
36-Month 		78.14"
(1,984.76mm)		 67.32"
(1,709.93mm)		 10.82"
(274.83mm)		 106th Driest
Driest since:
 2022
20th Wettest
Wettest since:
 1984
Oct 1967–Sep 1971
48-Month 		95.49"
(2,425.45mm)		 89.51"
(2,273.55mm)		 5.98"
(151.90mm)		 88th Driest
Driest since:
 2015
37th Wettest
Wettest since:
 1998
Oct 1966–Sep 1971
60-Month 		123.81"
(3,144.77mm)		 111.69"
(2,836.93mm)		 12.12"
(307.84mm)		 102nd Driest
Driest since:
 1991
22nd Wettest
Wettest since:
 1999

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