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 1955

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
September 1955
1-Month 		0.35"
(8.89mm)		 0.45"
(11.43mm)		 -0.10"
(-2.54mm)		 76th Driest
Driest since:
 1974
53rd Wettest
Wettest since:
 1918
Ties: 2000
Aug–Sep 1955
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, 1941, 1945, 1973, 2017
Jul–Sep 1955
3-Month 		0.96"
(24.38mm)		 0.87"
(22.10mm)		 0.09"
(2.28mm)		 88th Driest
Driest since:
 1928
41st Wettest
Wettest since:
 1976
Ties: 1968, 2003
Jun–Sep 1955
4-Month 		1.06"
(26.92mm)		 1.22"
(30.99mm)		 -0.16"
(-4.07mm)		 61st Driest
Driest since:
 2002
68th Wettest
Wettest since:
 1982
Ties: 1953
May–Sep 1955
5-Month 		1.73"
(43.94mm)		 2.10"
(53.34mm)		 -0.37"
(-9.40mm)		 50th Driest
Driest since:
 1924
79th Wettest
Wettest since:
 1998
Ties: 1929, 1932
Apr–Sep 1955
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: 1971
Mar–Sep 1955
7-Month 		4.85"
(123.19mm)		 6.95"
(176.53mm)		 -2.10"
(-53.34mm)		 29th Driest
Driest since:
 2008
100th Wettest
Wettest since:
 1995
Ties: 1964
Feb–Sep 1955
8-Month 		6.35"
(161.29mm)		 10.80"
(274.32mm)		 -4.45"
(-113.03mm)		 13th Driest
Driest since:
 2021
116th Wettest
Wettest since:
 1998
Jan–Sep 1955
9-Month 		9.96"
(252.98mm)		 15.05"
(382.27mm)		 -5.09"
(-129.29mm)		 22nd Driest
Driest since:
 2022
107th Wettest
Wettest since:
 1998
Dec 1954–Sep 1955
10-Month 		13.63"
(346.20mm)		 18.67"
(474.22mm)		 -5.04"
(-128.02mm)		 26th Driest
Driest since:
 1924
102nd Wettest
Wettest since:
 1983
Nov 1954–Sep 1955
11-Month 		16.38"
(416.05mm)		 21.25"
(539.75mm)		 -4.87"
(-123.70mm)		 32nd Driest
Driest since:
 1924
96th Wettest
Wettest since:
 1983
Oct 1954–Sep 1955
12-Month 		16.67"
(423.42mm)		 22.45"
(570.23mm)		 -5.78"
(-146.81mm)		 26th Driest
Driest since:
 1924
102nd Wettest
Wettest since:
 1983
Ties: 1913, 2001
Apr 1954–Sep 1955
18-Month 		19.88"
(504.95mm)		 26.19"
(665.23mm)		 -6.31"
(-160.28mm)		 23rd Driest
Driest since:
 2021
105th Wettest
Wettest since:
 1983
Oct 1953–Sep 1955
24-Month 		37.84"
(961.14mm)		 44.90"
(1,140.46mm)		 -7.06"
(-179.32mm)		 34th Driest
Driest since:
 1977
93rd Wettest
Wettest since:
 1983
Oct 1952–Sep 1955
36-Month 		59.78"
(1,518.41mm)		 67.32"
(1,709.93mm)		 -7.54"
(-191.52mm)		 37th Driest
Driest since:
 2022
89th Wettest
Wettest since:
 1984
Oct 1951–Sep 1955
48-Month 		90.57"
(2,300.48mm)		 89.51"
(2,273.55mm)		 1.06"
(26.93mm)		 75th Driest
Driest since:
 2015
50th Wettest
Wettest since:
 1998
Oct 1950–Sep 1955
60-Month 		113.57"
(2,884.68mm)		 111.69"
(2,836.93mm)		 1.88"
(47.75mm)		 74th Driest
Driest since:
 1991
50th Wettest
Wettest since:
 1999

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