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, October 1918

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
October 1918
1-Month 		1.00"
(25.40mm)		 1.20"
(30.48mm)		 -0.20"
(-5.08mm)		 60th Driest
Driest since:
 1917
69th Wettest
Wettest since:
 1962
Ties: 2005
Sep–Oct 1918
2-Month 		2.55"
(64.77mm)		 1.65"
(41.91mm)		 0.90"
(22.86mm)		 108th Driest
Driest since:
 2020
21st Wettest
Wettest since:
 1962
Ties: 1956, 2000
Aug–Oct 1918
3-Month 		2.82"
(71.63mm)		 1.89"
(48.01mm)		 0.93"
(23.62mm)		 106th Driest
Driest since:
 1995, 2002
23rd Wettest
Wettest since:
 1962
Ties: 2000
Jul–Oct 1918
4-Month 		3.06"
(77.72mm)		 2.07"
(52.58mm)		 0.99"
(25.14mm)		 107th Driest
Driest since:
 2002, 2020
22nd Wettest
Wettest since:
 1962
Jun–Oct 1918
5-Month 		3.18"
(80.77mm)		 2.42"
(61.47mm)		 0.76"
(19.30mm)		 100th Driest
Driest since:
 2002
29th Wettest
Wettest since:
 1982
May–Oct 1918
6-Month 		3.53"
(89.66mm)		 3.30"
(83.82mm)		 0.23"
(5.84mm)		 76th Driest
Driest since:
 2002
53rd Wettest
Wettest since:
 1957
Apr–Oct 1918
7-Month 		4.14"
(105.16mm)		 4.93"
(125.22mm)		 -0.79"
(-20.06mm)		 43rd Driest
Driest since:
 2002
86th Wettest
Wettest since:
 1963
Mar–Oct 1918
8-Month 		9.47"
(240.54mm)		 8.14"
(206.76mm)		 1.33"
(33.78mm)		 97th Driest
Driest since:
 2008
32nd Wettest
Wettest since:
 1983
Feb–Oct 1918
9-Month 		14.67"
(372.62mm)		 11.99"
(304.55mm)		 2.68"
(68.07mm)		 99th Driest
Driest since:
 1966
30th Wettest
Wettest since:
 1998
Jan–Oct 1918
10-Month 		15.73"
(399.54mm)		 16.24"
(412.50mm)		 -0.51"
(-12.96mm)		 70th Driest
Driest since:
 2022
59th Wettest
Wettest since:
 1998
Dec 1917–Oct 1918
11-Month 		16.92"
(429.77mm)		 19.87"
(504.70mm)		 -2.95"
(-74.93mm)		 51st Driest
Driest since:
 1977
77th Wettest
Wettest since:
 1983
Nov 1917–Oct 1918
12-Month 		18.48"
(469.39mm)		 22.44"
(569.98mm)		 -3.96"
(-100.59mm)		 47th Driest
Driest since:
 1977
81st Wettest
Wettest since:
 1983
May 1917–Oct 1918
18-Month 		19.97"
(507.24mm)		 25.75"
(654.05mm)		 -5.78"
(-146.81mm)		 34th Driest
Driest since:
 1977
94th Wettest
Wettest since:
 1983
Nov 1916–Oct 1918
24-Month 		35.63"
(905.00mm)		 44.87"
(1,139.70mm)		 -9.24"
(-234.70mm)		 24th Driest
Driest since:
 1977
103rd Wettest
Wettest since:
 1983
Nov 1915–Oct 1918
36-Month 		62.11"
(1,577.59mm)		 67.29"
(1,709.17mm)		 -5.18"
(-131.58mm)		 48th Driest
Driest since:
 2022
78th Wettest
Wettest since:
 1984
Nov 1914–Oct 1918
48-Month 		87.72"
(2,228.09mm)		 89.47"
(2,272.54mm)		 -1.75"
(-44.45mm)		 65th Driest
Driest since:
 2015
60th Wettest
Wettest since:
 1998
Ties: 1902
Nov 1913–Oct 1918
60-Month 		118.18"
(3,001.77mm)		 111.65"
(2,835.91mm)		 6.53"
(165.86mm)		 87th Driest
Driest since:
 1991
37th Wettest
Wettest since:
 1999

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