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 1906

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
September 1906
1-Month 		0.27"
(6.86mm)		 0.45"
(11.43mm)		 -0.18"
(-4.57mm)		 58th Driest
Driest since:
 1974
71st Wettest
Wettest since:
 1918
Ties: 1900, 1961, 1984, 1996
Aug–Sep 1906
2-Month 		0.59"
(14.99mm)		 0.69"
(17.53mm)		 -0.10"
(-2.54mm)		 67th Driest
Driest since:
 1937, 2018
62nd Wettest
Wettest since:
 1983
Jul–Sep 1906
3-Month 		0.72"
(18.29mm)		 0.87"
(22.10mm)		 -0.15"
(-3.81mm)		 61st Driest
Driest since:
 1928
68th Wettest
Wettest since:
 1976
Ties: 1981
Jun–Sep 1906
4-Month 		1.49"
(37.85mm)		 1.22"
(30.99mm)		 0.27"
(6.86mm)		 99th Driest
Driest since:
 2002
30th Wettest
Wettest since:
 1982
May–Sep 1906
5-Month 		4.16"
(105.66mm)		 2.10"
(53.34mm)		 2.06"
(52.32mm)		 127th Driest
Driest since:
 1924
2nd Wettest
Wettest to Date
 1998
Apr–Sep 1906
6-Month 		5.90"
(149.86mm)		 3.74"
(95.00mm)		 2.16"
(54.86mm)		 114th Driest
Driest since:
 1924
15th Wettest
Wettest since:
 1896
Mar–Sep 1906
7-Month 		13.69"
(347.73mm)		 6.95"
(176.53mm)		 6.74"
(171.20mm)		 126th Driest
Driest since:
 2008
3rd Wettest
Wettest to Date
 1995
Feb–Sep 1906
8-Month 		17.78"
(451.61mm)		 10.80"
(274.32mm)		 6.98"
(177.29mm)		 123rd Driest
Driest since:
 2021
6th Wettest
Wettest since:
 1998
Jan–Sep 1906
9-Month 		24.31"
(617.47mm)		 15.05"
(382.27mm)		 9.26"
(235.20mm)		 122nd Driest
Driest since:
 2022
7th Wettest
Wettest to Date
 1998
Dec 1905–Sep 1906
10-Month 		25.79"
(655.07mm)		 18.67"
(474.22mm)		 7.12"
(180.85mm)		 116th Driest
Driest since:
 1924
12th Wettest
Wettest to Date
 1983
Nov 1905–Sep 1906
11-Month 		27.96"
(710.18mm)		 21.25"
(539.75mm)		 6.71"
(170.43mm)		 111th Driest
Driest since:
 1924
17th Wettest
Wettest to Date
 1983
Oct 1905–Sep 1906
12-Month 		28.14"
(714.76mm)		 22.45"
(570.23mm)		 5.69"
(144.53mm)		 103rd Driest
Driest since:
 1924
25th Wettest
Wettest since:
 1983
Apr 1905–Sep 1906
18-Month 		31.53"
(800.86mm)		 26.19"
(665.23mm)		 5.34"
(135.63mm)		 104th Driest
Driest since:
 2021
24th Wettest
Wettest since:
 1983
Oct 1904–Sep 1906
24-Month 		51.55"
(1,309.37mm)		 44.90"
(1,140.46mm)		 6.65"
(168.91mm)		 105th Driest
Driest since:
 1977
22nd Wettest
Wettest since:
 1983
Oct 1903–Sep 1906
36-Month 		79.92"
(2,029.97mm)		 67.32"
(1,709.93mm)		 12.60"
(320.04mm)		 112th Driest
Driest since:
 2022
14th Wettest
Wettest to Date
 1984
Oct 1902–Sep 1906
48-Month 		102.58"
(2,605.53mm)		 89.51"
(2,273.55mm)		 13.07"
(331.98mm)		 107th Driest
Driest since:
 2015
18th Wettest
Wettest to Date
 1998
Oct 1901–Sep 1906
60-Month 		124.19"
(3,154.43mm)		 111.69"
(2,836.93mm)		 12.50"
(317.50mm)		 103rd Driest
Driest since:
 1991
21st Wettest
Wettest to Date
 1999

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