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 2022

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
September 2022
1-Month 		0.85"
(21.59mm)		 0.45"
(11.43mm)		 0.40"
(10.16mm)		 108th Driest
Driest since:
 1974
21st Wettest
Wettest since:
 1918
Aug–Sep 2022
2-Month 		1.25"
(31.75mm)		 0.69"
(17.53mm)		 0.56"
(14.22mm)		 115th Driest
Driest since:
 1937, 2018
14th Wettest
Wettest since:
 1983
Jul–Sep 2022
3-Month 		1.38"
(35.05mm)		 0.87"
(22.10mm)		 0.51"
(12.95mm)		 109th Driest
Driest since:
 1928
20th Wettest
Wettest since:
 1976
Jun–Sep 2022
4-Month 		1.82"
(46.23mm)		 1.22"
(30.99mm)		 0.60"
(15.24mm)		 113th Driest
Driest since:
 2002
16th Wettest
Wettest since:
 1982
Ties: 1978, 1986
May–Sep 2022
5-Month 		2.12"
(53.85mm)		 2.10"
(53.34mm)		 0.02"
(0.51mm)		 76th Driest
Driest since:
 1924
53rd Wettest
Wettest since:
 1998
Apr–Sep 2022
6-Month 		3.84"
(97.54mm)		 3.74"
(95.00mm)		 0.10"
(2.54mm)		 84th Driest
Driest since:
 1924
45th Wettest
Wettest since:
 1896
Mar–Sep 2022
7-Month 		4.89"
(124.21mm)		 6.95"
(176.53mm)		 -2.06"
(-52.32mm)		 31st Driest
Driest since:
 2008
98th Wettest
Wettest since:
 1995
Feb–Sep 2022
8-Month 		5.13"
(130.30mm)		 10.80"
(274.32mm)		 -5.67"
(-144.02mm)		 8th Driest
Driest since:
 2021
121st Wettest
Wettest since:
 1998
Jan–Sep 2022
9-Month 		5.58"
(141.73mm)		 15.05"
(382.27mm)		 -9.47"
(-240.54mm)		 1st Driest
Driest since:
 2022
128th Wettest
Wettest since:
 1998
Dec 2021–Sep 2022
10-Month 		11.84"
(300.74mm)		 18.67"
(474.22mm)		 -6.83"
(-173.48mm)		 11th Driest
Driest since:
 1924
117th Wettest
Wettest since:
 1983
Nov 2021–Sep 2022
11-Month 		12.79"
(324.87mm)		 21.25"
(539.75mm)		 -8.46"
(-214.88mm)		 6th Driest
Driest since:
 1924
122nd Wettest
Wettest since:
 1983
Oct 2021–Sep 2022
12-Month 		16.45"
(417.83mm)		 22.45"
(570.23mm)		 -6.00"
(-152.40mm)		 23rd Driest
Driest since:
 1924
105th Wettest
Wettest since:
 1983
Apr 2021–Sep 2022
18-Month 		17.74"
(450.60mm)		 26.19"
(665.23mm)		 -8.45"
(-214.63mm)		 8th Driest
Driest since:
 2021
120th Wettest
Wettest since:
 1983
Oct 2020–Sep 2022
24-Month 		27.58"
(700.53mm)		 44.90"
(1,140.46mm)		 -17.32"
(-439.93mm)		 3rd Driest
Driest since:
 1977
124th Wettest
Wettest since:
 1983
Oct 2019–Sep 2022
36-Month 		43.22"
(1,097.79mm)		 67.32"
(1,709.93mm)		 -24.10"
(-612.14mm)		 1st Driest
Driest since:
 2022
125th Wettest
Wettest since:
 1984
Oct 2018–Sep 2022
48-Month 		71.59"
(1,818.39mm)		 89.51"
(2,273.55mm)		 -17.92"
(-455.16mm)		 13th Driest
Driest since:
 2015
112th Wettest
Wettest since:
 1998
Oct 2017–Sep 2022
60-Month 		87.41"
(2,220.21mm)		 111.69"
(2,836.93mm)		 -24.28"
(-616.72mm)		 5th Driest
Driest since:
 1991
119th Wettest
Wettest since:
 1999

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