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 1991

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
August 1991
1-Month
0.20"
(5.08mm)
0.24"
(6.10mm)
-0.04"
(-1.02mm)
66th Driest
Driest since:
1937, 2002
63rd Wettest
Wettest since:
1983
Ties: 1907, 1992
Jul–Aug 1991
2-Month
0.46"
(11.68mm)
0.42"
(10.67mm)
0.04"
(1.01mm)
86th Driest
Driest since:
1940
43rd Wettest
Wettest since:
1983
Jun–Aug 1991
3-Month
0.78"
(19.81mm)
0.77"
(19.56mm)
0.01"
(0.25mm)
74th Driest
Driest since:
2002
55th Wettest
Wettest since:
1913
Ties: 1944, 1963
May–Aug 1991
4-Month
1.60"
(40.64mm)
1.65"
(41.91mm)
-0.05"
(-1.27mm)
76th Driest
Driest since:
1924
53rd Wettest
Wettest since:
1998
Apr–Aug 1991
5-Month
2.35"
(59.69mm)
3.29"
(83.57mm)
-0.94"
(-23.88mm)
32nd Driest
Driest since:
2021
97th Wettest
Wettest since:
1896
Mar–Aug 1991
6-Month
11.46"
(291.08mm)
6.50"
(165.10mm)
4.96"
(125.98mm)
123rd Driest
Driest since:
2008
6th Wettest
Wettest since:
1995
Feb–Aug 1991
7-Month
13.70"
(347.98mm)
10.35"
(262.89mm)
3.35"
(85.09mm)
110th Driest
Driest since:
1997, 2021
19th Wettest
Wettest since:
1998
Jan–Aug 1991
8-Month
14.70"
(373.38mm)
14.60"
(370.84mm)
0.10"
(2.54mm)
78th Driest
Driest since:
2022
51st Wettest
Wettest since:
1995
Dec 1990–Aug 1991
9-Month
15.61"
(396.49mm)
18.22"
(462.79mm)
-2.61"
(-66.30mm)
57th Driest
Driest since:
1924
71st Wettest
Wettest since:
1998
Nov 1990–Aug 1991
10-Month
16.32"
(414.53mm)
20.80"
(528.32mm)
-4.48"
(-113.79mm)
40th Driest
Driest since:
1924
88th Wettest
Wettest since:
1983
Oct 1990–Aug 1991
11-Month
16.79"
(426.47mm)
22.00"
(558.80mm)
-5.21"
(-132.33mm)
34th Driest
Driest since:
1924
94th Wettest
Wettest since:
1983
Sep 1990–Aug 1991
12-Month
17.20"
(436.88mm)
22.44"
(569.98mm)
-5.24"
(-133.10mm)
33rd Driest
Driest since:
2021
95th Wettest
Wettest since:
1983
Mar 1990–Aug 1991
18-Month
22.61"
(574.29mm)
28.96"
(735.58mm)
-6.35"
(-161.29mm)
28th Driest
Driest since:
1977
100th Wettest
Wettest since:
1983
Sep 1989–Aug 1991
24-Month
33.14"
(841.76mm)
44.90"
(1,140.46mm)
-11.76"
(-298.70mm)
14th Driest
Driest since:
1977
113th Wettest
Wettest since:
1983
Sep 1988–Aug 1991
36-Month
51.11"
(1,298.19mm)
67.31"
(1,709.67mm)
-16.20"
(-411.48mm)
8th Driest
Driest since:
2022
118th Wettest
Wettest since:
1984
Sep 1987–Aug 1991
48-Month
69.47"
(1,764.54mm)
89.50"
(2,273.30mm)
-20.03"
(-508.76mm)
6th Driest
Driest since:
2015
119th Wettest
Wettest since:
1998
Sep 1986–Aug 1991
60-Month
84.74"
(2,152.40mm)
111.68"
(2,836.67mm)
-26.94"
(-684.27mm)
1st Driest
Driest since:
1991
123rd Wettest
Wettest since:
1999

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