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, August 1918

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
August 1918
1-Month 		0.27"
(6.86mm)		 0.24"
(6.10mm)		 0.03"
(0.76mm)		 86th Driest
Driest since:
 1937, 2002
43rd Wettest
Wettest since:
 1983
Ties: 1921, 1954, 1997, 2000, 2017
Jul–Aug 1918
2-Month 		0.51"
(12.95mm)		 0.42"
(10.67mm)		 0.09"
(2.28mm)		 93rd Driest
Driest since:
 1940
36th Wettest
Wettest since:
 1983
Ties: 1935, 1954
Jun–Aug 1918
3-Month 		0.63"
(16.00mm)		 0.77"
(19.56mm)		 -0.14"
(-3.56mm)		 56th Driest
Driest since:
 2002
73rd Wettest
Wettest since:
 1913
May–Aug 1918
4-Month 		0.98"
(24.89mm)		 1.65"
(41.91mm)		 -0.67"
(-17.02mm)		 21st Driest
Driest since:
 1924
108th Wettest
Wettest since:
 1998
Apr–Aug 1918
5-Month 		1.59"
(40.39mm)		 3.29"
(83.57mm)		 -1.70"
(-43.18mm)		 13th Driest
Driest since:
 2021
116th Wettest
Wettest since:
 1896
Ties: 1919
Mar–Aug 1918
6-Month 		6.92"
(175.77mm)		 6.50"
(165.10mm)		 0.42"
(10.67mm)		 83rd Driest
Driest since:
 2008
46th Wettest
Wettest since:
 1995
Ties: 1903
Feb–Aug 1918
7-Month 		12.12"
(307.85mm)		 10.35"
(262.89mm)		 1.77"
(44.96mm)		 94th Driest
Driest since:
 1997, 2021
35th Wettest
Wettest since:
 1998
Jan–Aug 1918
8-Month 		13.18"
(334.77mm)		 14.60"
(370.84mm)		 -1.42"
(-36.07mm)		 61st Driest
Driest since:
 2022
68th Wettest
Wettest since:
 1995
Dec 1917–Aug 1918
9-Month 		14.37"
(365.00mm)		 18.22"
(462.79mm)		 -3.85"
(-97.79mm)		 39th Driest
Driest since:
 1924
89th Wettest
Wettest since:
 1998
Nov 1917–Aug 1918
10-Month 		15.93"
(404.62mm)		 20.80"
(528.32mm)		 -4.87"
(-123.70mm)		 33rd Driest
Driest since:
 1924
95th Wettest
Wettest since:
 1983
Oct 1917–Aug 1918
11-Month 		15.94"
(404.88mm)		 22.00"
(558.80mm)		 -6.06"
(-153.92mm)		 23rd Driest
Driest since:
 1924
105th Wettest
Wettest since:
 1983
Sep 1917–Aug 1918
12-Month 		16.13"
(409.70mm)		 22.44"
(569.98mm)		 -6.31"
(-160.28mm)		 19th Driest
Driest since:
 2021
109th Wettest
Wettest since:
 1983
Mar 1917–Aug 1918
18-Month 		20.31"
(515.87mm)		 28.96"
(735.58mm)		 -8.65"
(-219.71mm)		 9th Driest
Driest to Date
 1977
119th Wettest
Wettest since:
 1983
Sep 1916–Aug 1918
24-Month 		35.12"
(892.05mm)		 44.90"
(1,140.46mm)		 -9.78"
(-248.41mm)		 23rd Driest
Driest since:
 1977
104th Wettest
Wettest since:
 1983
Sep 1915–Aug 1918
36-Month 		59.79"
(1,518.67mm)		 67.31"
(1,709.67mm)		 -7.52"
(-191.00mm)		 36th Driest
Driest since:
 2022
90th Wettest
Wettest since:
 1984
Sep 1914–Aug 1918
48-Month 		86.91"
(2,207.51mm)		 89.50"
(2,273.30mm)		 -2.59"
(-65.79mm)		 58th Driest
Driest since:
 2015
67th Wettest
Wettest since:
 1998
Sep 1913–Aug 1918
60-Month 		115.88"
(2,943.35mm)		 111.68"
(2,836.67mm)		 4.20"
(106.68mm)		 82nd Driest
Driest since:
 1991
42nd Wettest
Wettest since:
 1999

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