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 1898

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
September 1898
1-Month 		0.63"
(16.00mm)		 0.45"
(11.43mm)		 0.18"
(4.57mm)		 100th Driest
Driest since:
 1974
29th Wettest
Wettest since:
 1918
Ties: 1930
Aug–Sep 1898
2-Month 		0.80"
(20.32mm)		 0.69"
(17.53mm)		 0.11"
(2.79mm)		 90th Driest
Driest since:
 1937, 2018
39th Wettest
Wettest since:
 1983
Jul–Sep 1898
3-Month 		0.90"
(22.86mm)		 0.87"
(22.10mm)		 0.03"
(0.76mm)		 83rd Driest
Driest since:
 1928
46th Wettest
Wettest since:
 1976
Ties: 1952
Jun–Sep 1898
4-Month 		1.38"
(35.05mm)		 1.22"
(30.99mm)		 0.16"
(4.06mm)		 89th Driest
Driest since:
 2002
40th Wettest
Wettest since:
 1982
May–Sep 1898
5-Month 		3.11"
(78.99mm)		 2.10"
(53.34mm)		 1.01"
(25.65mm)		 116th Driest
Driest since:
 1924
13th Wettest
Wettest since:
 1998
Apr–Sep 1898
6-Month 		3.63"
(92.20mm)		 3.74"
(95.00mm)		 -0.11"
(-2.80mm)		 78th Driest
Driest since:
 1924
51st Wettest
Wettest since:
 1896
Mar–Sep 1898
7-Month 		4.57"
(116.08mm)		 6.95"
(176.53mm)		 -2.38"
(-60.45mm)		 22nd Driest
Driest to Date
 2008
107th Wettest
Wettest since:
 1995
Ties: 1946
Feb–Sep 1898
8-Month 		7.63"
(193.80mm)		 10.80"
(274.32mm)		 -3.17"
(-80.52mm)		 31st Driest
Driest to Date
 2021
98th Wettest
Wettest since:
 1998
Jan–Sep 1898
9-Month 		8.97"
(227.84mm)		 15.05"
(382.27mm)		 -6.08"
(-154.43mm)		 18th Driest
Driest to Date
 2022
111th Wettest
Wettest since:
 1998
Dec 1897–Sep 1898
10-Month 		11.39"
(289.31mm)		 18.67"
(474.22mm)		 -7.28"
(-184.91mm)		 9th Driest
Driest to Date
 1924
119th Wettest
Wettest since:
 1983
Nov 1897–Sep 1898
11-Month 		13.22"
(335.79mm)		 21.25"
(539.75mm)		 -8.03"
(-203.96mm)		 8th Driest
Driest to Date
 1924
120th Wettest
Wettest since:
 1983
Oct 1897–Sep 1898
12-Month 		15.16"
(385.06mm)		 22.45"
(570.23mm)		 -7.29"
(-185.17mm)		 11th Driest
Driest to Date
 1924
117th Wettest
Wettest since:
 1983
Apr 1897–Sep 1898
18-Month 		17.45"
(443.23mm)		 26.19"
(665.23mm)		 -8.74"
(-222.00mm)		 5th Driest
Driest to Date
 2021
123rd Wettest
Wettest since:
 1983
Oct 1896–Sep 1898
24-Month 		40.33"
(1,024.38mm)		 44.90"
(1,140.46mm)		 -4.57"
(-116.08mm)		 41st Driest
Driest to Date
 1977
86th Wettest
Wettest since:
 1983
Oct 1895–Sep 1898
36-Month 		65.06"
(1,652.52mm)		 67.32"
(1,709.93mm)		 -2.26"
(-57.41mm)		 64th Driest
Driest to Date
 2022
62nd Wettest
Wettest to Date
 1984
Ties: 1901

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