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 1930

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
July 1930
1-Month
0.04"
(1.02mm)
0.18"
(4.57mm)
-0.14"
(-3.55mm)
10th Driest
Driest since:
1940
119th Wettest
Wettest since:
1913
Ties: 1903, 1931, 1942, 1981, 1989
Jun–Jul 1930
2-Month
0.09"
(2.29mm)
0.53"
(13.46mm)
-0.44"
(-11.17mm)
3rd Driest
Driest since:
1901
126th Wettest
Wettest since:
1913
May–Jul 1930
3-Month
1.29"
(32.77mm)
1.41"
(35.81mm)
-0.12"
(-3.04mm)
68th Driest
Driest since:
1924
61st Wettest
Wettest since:
1998
Apr–Jul 1930
4-Month
2.80"
(71.12mm)
3.04"
(77.22mm)
-0.24"
(-6.10mm)
65th Driest
Driest since:
1909
64th Wettest
Wettest since:
1896
Mar–Jul 1930
5-Month
5.48"
(139.19mm)
6.26"
(159.00mm)
-0.78"
(-19.81mm)
64th Driest
Driest since:
2008
65th Wettest
Wettest since:
1995
Feb–Jul 1930
6-Month
8.35"
(212.09mm)
10.10"
(256.54mm)
-1.75"
(-44.45mm)
52nd Driest
Driest since:
1997
77th Wettest
Wettest since:
1998
Jan–Jul 1930
7-Month
12.94"
(328.68mm)
14.36"
(364.74mm)
-1.42"
(-36.06mm)
60th Driest
Driest since:
2022
69th Wettest
Wettest since:
1995
Ties: 1926
Dec 1929–Jul 1930
8-Month
17.32"
(439.93mm)
17.98"
(456.69mm)
-0.66"
(-16.76mm)
72nd Driest
Driest since:
1924
56th Wettest
Wettest since:
1998
Nov 1929–Jul 1930
9-Month
17.32"
(439.93mm)
20.55"
(521.97mm)
-3.23"
(-82.04mm)
52nd Driest
Driest since:
1924
76th Wettest
Wettest since:
1983, 1998
Oct 1929–Jul 1930
10-Month
17.49"
(444.25mm)
21.75"
(552.45mm)
-4.26"
(-108.20mm)
45th Driest
Driest since:
1977
83rd Wettest
Wettest since:
1983
Sep 1929–Jul 1930
11-Month
17.77"
(451.36mm)
22.20"
(563.88mm)
-4.43"
(-112.52mm)
45th Driest
Driest since:
1977
83rd Wettest
Wettest since:
1983
Aug 1929–Jul 1930
12-Month
18.01"
(457.45mm)
22.44"
(569.98mm)
-4.43"
(-112.53mm)
45th Driest
Driest since:
2021
83rd Wettest
Wettest since:
1983
Feb 1929–Jul 1930
18-Month
24.71"
(627.63mm)
32.51"
(825.75mm)
-7.80"
(-198.12mm)
19th Driest
Driest since:
2014
109th Wettest
Wettest since:
1983
Aug 1928–Jul 1930
24-Month
32.87"
(834.90mm)
44.90"
(1,140.46mm)
-12.03"
(-305.56mm)
12th Driest
Driest since:
1977
115th Wettest
Wettest since:
1983
Aug 1927–Jul 1930
36-Month
52.19"
(1,325.63mm)
67.31"
(1,709.67mm)
-15.12"
(-384.04mm)
11th Driest
Driest since:
2022
115th Wettest
Wettest since:
1984
Aug 1926–Jul 1930
48-Month
79.69"
(2,024.13mm)
89.50"
(2,273.30mm)
-9.81"
(-249.17mm)
36th Driest
Driest since:
2015
89th Wettest
Wettest since:
1998
Aug 1925–Jul 1930
60-Month
98.16"
(2,493.26mm)
111.68"
(2,836.67mm)
-13.52"
(-343.41mm)
24th Driest
Driest since:
1991
100th Wettest
Wettest since:
1999

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