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, July 1940

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
July 1940
1-Month 		0.01"
(0.25mm)		 0.18"
(4.57mm)		 -0.17"
(-4.32mm)		 1st Driest
Driest since:
 1940
128th Wettest
Wettest since:
 1913
Jun–Jul 1940
2-Month 		0.14"
(3.56mm)		 0.53"
(13.46mm)		 -0.39"
(-9.90mm)		 8th Driest
Driest since:
 1901
121st Wettest
Wettest since:
 1913
Ties: 1928, 1942, 2004
May–Jul 1940
3-Month 		0.82"
(20.83mm)		 1.41"
(35.81mm)		 -0.59"
(-14.98mm)		 29th Driest
Driest since:
 1924
100th Wettest
Wettest since:
 1998
Apr–Jul 1940
4-Month 		2.06"
(52.32mm)		 3.04"
(77.22mm)		 -0.98"
(-24.90mm)		 30th Driest
Driest since:
 1909
99th Wettest
Wettest since:
 1896
Mar–Jul 1940
5-Month 		5.80"
(147.32mm)		 6.26"
(159.00mm)		 -0.46"
(-11.68mm)		 66th Driest
Driest since:
 2008
63rd Wettest
Wettest since:
 1995
Feb–Jul 1940
6-Month 		13.57"
(344.68mm)		 10.10"
(256.54mm)		 3.47"
(88.14mm)		 111th Driest
Driest since:
 1997
18th Wettest
Wettest since:
 1998
Jan–Jul 1940
7-Month 		20.62"
(523.75mm)		 14.36"
(364.74mm)		 6.26"
(159.01mm)		 113th Driest
Driest since:
 2022
16th Wettest
Wettest since:
 1995
Dec 1939–Jul 1940
8-Month 		23.63"
(600.20mm)		 17.98"
(456.69mm)		 5.65"
(143.51mm)		 106th Driest
Driest since:
 1924
22nd Wettest
Wettest since:
 1998
Nov 1939–Jul 1940
9-Month 		24.09"
(611.89mm)		 20.55"
(521.97mm)		 3.54"
(89.92mm)		 94th Driest
Driest since:
 1924
34th Wettest
Wettest since:
 1983, 1998
Oct 1939–Jul 1940
10-Month 		25.08"
(637.03mm)		 21.75"
(552.45mm)		 3.33"
(84.58mm)		 96th Driest
Driest since:
 1977
32nd Wettest
Wettest since:
 1983
Sep 1939–Jul 1940
11-Month 		26.19"
(665.23mm)		 22.20"
(563.88mm)		 3.99"
(101.35mm)		 98th Driest
Driest since:
 1977
30th Wettest
Wettest since:
 1983
Aug 1939–Jul 1940
12-Month 		26.37"
(669.80mm)		 22.44"
(569.98mm)		 3.93"
(99.82mm)		 98th Driest
Driest since:
 2021
30th Wettest
Wettest since:
 1983
Feb 1939–Jul 1940
18-Month 		32.88"
(835.15mm)		 32.51"
(825.75mm)		 0.37"
(9.40mm)		 79th Driest
Driest since:
 2014
49th Wettest
Wettest since:
 1983
Aug 1938–Jul 1940
24-Month 		42.00"
(1,066.80mm)		 44.90"
(1,140.46mm)		 -2.90"
(-73.66mm)		 53rd Driest
Driest since:
 1977
74th Wettest
Wettest since:
 1983
Aug 1937–Jul 1940
36-Month 		75.24"
(1,911.10mm)		 67.31"
(1,709.67mm)		 7.93"
(201.43mm)		 97th Driest
Driest since:
 2022
29th Wettest
Wettest since:
 1984
Aug 1936–Jul 1940
48-Month 		98.68"
(2,506.47mm)		 89.50"
(2,273.30mm)		 9.18"
(233.17mm)		 99th Driest
Driest since:
 2015
26th Wettest
Wettest since:
 1998
Aug 1935–Jul 1940
60-Month 		121.92"
(3,096.77mm)		 111.68"
(2,836.67mm)		 10.24"
(260.10mm)		 99th Driest
Driest since:
 1991
25th Wettest
Wettest since:
 1999

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