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 1999

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 1999
1-Month
0.21"
(5.33mm)
0.24"
(6.10mm)
-0.03"
(-0.77mm)
69th Driest
Driest since:
1937, 2002
60th Wettest
Wettest since:
1983
Ties: 1923, 1926
Jul–Aug 1999
2-Month
0.52"
(13.21mm)
0.42"
(10.67mm)
0.10"
(2.54mm)
94th Driest
Driest since:
1940
35th Wettest
Wettest since:
1983
Jun–Aug 1999
3-Month
0.77"
(19.56mm)
0.77"
(19.56mm)
0.00"
(0.00mm)
71st Driest
Driest since:
2002
58th Wettest
Wettest since:
1913
Ties: 1899, 2009
May–Aug 1999
4-Month
1.10"
(27.94mm)
1.65"
(41.91mm)
-0.55"
(-13.97mm)
33rd Driest
Driest since:
1924
96th Wettest
Wettest since:
1998
Apr–Aug 1999
5-Month
2.97"
(75.44mm)
3.29"
(83.57mm)
-0.32"
(-8.13mm)
60th Driest
Driest since:
2021
69th Wettest
Wettest since:
1896
Ties: 1969
Mar–Aug 1999
6-Month
5.37"
(136.40mm)
6.50"
(165.10mm)
-1.13"
(-28.70mm)
55th Driest
Driest since:
2008
74th Wettest
Wettest since:
1995
Feb–Aug 1999
7-Month
10.35"
(262.89mm)
10.35"
(262.89mm)
0.00"
(0.00mm)
73rd Driest
Driest since:
1997, 2021
56th Wettest
Wettest since:
1998
Jan–Aug 1999
8-Month
13.89"
(352.81mm)
14.60"
(370.84mm)
-0.71"
(-18.03mm)
68th Driest
Driest since:
2022
61st Wettest
Wettest since:
1995
Dec 1998–Aug 1999
9-Month
15.54"
(394.72mm)
18.22"
(462.79mm)
-2.68"
(-68.07mm)
54th Driest
Driest since:
1924
74th Wettest
Wettest since:
1998
Nov 1998–Aug 1999
10-Month
19.88"
(504.95mm)
20.80"
(528.32mm)
-0.92"
(-23.37mm)
65th Driest
Driest since:
1924
63rd Wettest
Wettest since:
1983
Oct 1998–Aug 1999
11-Month
20.64"
(524.26mm)
22.00"
(558.80mm)
-1.36"
(-34.54mm)
62nd Driest
Driest since:
1924
66th Wettest
Wettest since:
1983
Sep 1998–Aug 1999
12-Month
21.38"
(543.05mm)
22.44"
(569.98mm)
-1.06"
(-26.93mm)
65th Driest
Driest since:
2021
63rd Wettest
Wettest since:
1983
Mar 1998–Aug 1999
18-Month
31.83"
(808.48mm)
28.96"
(735.58mm)
2.87"
(72.90mm)
93rd Driest
Driest since:
1977
35th Wettest
Wettest since:
1983
Sep 1997–Aug 1999
24-Month
59.23"
(1,504.44mm)
44.90"
(1,140.46mm)
14.33"
(363.98mm)
119th Driest
Driest since:
1977
8th Wettest
Wettest since:
1983
Sep 1996–Aug 1999
36-Month
85.18"
(2,163.57mm)
67.31"
(1,709.67mm)
17.87"
(453.90mm)
119th Driest
Driest since:
2022
7th Wettest
Wettest since:
1984
Sep 1995–Aug 1999
48-Month
109.67"
(2,785.62mm)
89.50"
(2,273.30mm)
20.17"
(512.32mm)
117th Driest
Driest since:
2015
8th Wettest
Wettest since:
1998
Sep 1994–Aug 1999
60-Month
146.12"
(3,711.45mm)
111.68"
(2,836.67mm)
34.44"
(874.78mm)
123rd Driest
Driest since:
1991
1st Wettest
Wettest to Date
1999

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