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 1940

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
August 1940
1-Month
0.02"
(0.51mm)
0.24"
(6.10mm)
-0.22"
(-5.59mm)
3rd Driest
Driest since:
1937, 2002
126th Wettest
Wettest since:
1983
Ties: 1911, 1928, 1960
Jul–Aug 1940
2-Month
0.03"
(0.76mm)
0.42"
(10.67mm)
-0.39"
(-9.91mm)
1st Driest
Driest since:
1940
128th Wettest
Wettest since:
1983
Jun–Aug 1940
3-Month
0.16"
(4.06mm)
0.77"
(19.56mm)
-0.61"
(-15.50mm)
2nd Driest
Driest since:
2002
127th Wettest
Wettest since:
1913
Ties: 1928
May–Aug 1940
4-Month
0.84"
(21.34mm)
1.65"
(41.91mm)
-0.81"
(-20.57mm)
17th Driest
Driest since:
1924
112th Wettest
Wettest since:
1998
Apr–Aug 1940
5-Month
2.08"
(52.83mm)
3.28"
(83.31mm)
-1.20"
(-30.48mm)
24th Driest
Driest since:
2021
105th Wettest
Wettest since:
1896
Mar–Aug 1940
6-Month
5.82"
(147.83mm)
6.50"
(165.10mm)
-0.68"
(-17.27mm)
64th Driest
Driest since:
2008
65th Wettest
Wettest since:
1995
Feb–Aug 1940
7-Month
13.59"
(345.19mm)
10.35"
(262.89mm)
3.24"
(82.30mm)
108th Driest
Driest since:
1997, 2021
21st Wettest
Wettest since:
1998
Jan–Aug 1940
8-Month
20.64"
(524.26mm)
14.60"
(370.84mm)
6.04"
(153.42mm)
112th Driest
Driest since:
2022
17th Wettest
Wettest since:
1995
Dec 1939–Aug 1940
9-Month
23.65"
(600.71mm)
18.22"
(462.79mm)
5.43"
(137.92mm)
106th Driest
Driest since:
1924
22nd Wettest
Wettest since:
1998
Nov 1939–Aug 1940
10-Month
24.11"
(612.39mm)
20.80"
(528.32mm)
3.31"
(84.07mm)
93rd Driest
Driest since:
1924
35th Wettest
Wettest since:
1983
Oct 1939–Aug 1940
11-Month
25.10"
(637.54mm)
22.00"
(558.80mm)
3.10"
(78.74mm)
95th Driest
Driest since:
1924
33rd Wettest
Wettest since:
1983
Sep 1939–Aug 1940
12-Month
26.21"
(665.73mm)
22.44"
(569.98mm)
3.77"
(95.75mm)
97th Driest
Driest since:
2021
31st Wettest
Wettest since:
1983
Mar 1939–Aug 1940
18-Month
30.93"
(785.62mm)
28.96"
(735.58mm)
1.97"
(50.04mm)
87th Driest
Driest since:
1977
41st Wettest
Wettest since:
1983
Sep 1938–Aug 1940
24-Month
41.91"
(1,064.51mm)
44.90"
(1,140.46mm)
-2.99"
(-75.95mm)
52nd Driest
Driest since:
1977
75th Wettest
Wettest since:
1983
Sep 1937–Aug 1940
36-Month
75.25"
(1,911.35mm)
67.31"
(1,709.67mm)
7.94"
(201.68mm)
97th Driest
Driest since:
2022
29th Wettest
Wettest since:
1984
Sep 1936–Aug 1940
48-Month
98.46"
(2,500.88mm)
89.50"
(2,273.30mm)
8.96"
(227.58mm)
99th Driest
Driest since:
2015
26th Wettest
Wettest since:
1998
Sep 1935–Aug 1940
60-Month
121.59"
(3,088.39mm)
111.68"
(2,836.67mm)
9.91"
(251.72mm)
98th Driest
Driest since:
1991
26th Wettest
Wettest since:
1999

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