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, September 1988

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
September 1988
1-Month
0.11"
(2.79mm)
0.45"
(11.43mm)
-0.34"
(-8.64mm)
22nd Driest
Driest since:
1974
107th Wettest
Wettest since:
1918
Ties: 1922, 1926, 1947, 1949, 2002
Aug–Sep 1988
2-Month
0.52"
(13.21mm)
0.69"
(17.53mm)
-0.17"
(-4.32mm)
61st Driest
Driest since:
1937, 2018
68th Wettest
Wettest since:
1983
Ties: 1929
Jul–Sep 1988
3-Month
0.61"
(15.49mm)
0.87"
(22.10mm)
-0.26"
(-6.61mm)
46th Driest
Driest since:
1928
83rd Wettest
Wettest since:
1976
Jun–Sep 1988
4-Month
1.18"
(29.97mm)
1.22"
(30.99mm)
-0.04"
(-1.02mm)
70th Driest
Driest since:
2002
59th Wettest
Wettest since:
1982
Ties: 1961
May–Sep 1988
5-Month
2.09"
(53.09mm)
2.10"
(53.34mm)
-0.01"
(-0.25mm)
72nd Driest
Driest since:
1924
57th Wettest
Wettest since:
1998
Ties: 2003
Apr–Sep 1988
6-Month
4.51"
(114.55mm)
3.74"
(95.00mm)
0.77"
(19.55mm)
96th Driest
Driest since:
1924
33rd Wettest
Wettest since:
1896
Mar–Sep 1988
7-Month
5.10"
(129.54mm)
6.95"
(176.53mm)
-1.85"
(-46.99mm)
37th Driest
Driest since:
2008
92nd Wettest
Wettest since:
1995
Feb–Sep 1988
8-Month
5.90"
(149.86mm)
10.80"
(274.32mm)
-4.90"
(-124.46mm)
10th Driest
Driest since:
2021
119th Wettest
Wettest since:
1998
Jan–Sep 1988
9-Month
9.74"
(247.40mm)
15.05"
(382.27mm)
-5.31"
(-134.87mm)
20th Driest
Driest since:
2022
109th Wettest
Wettest since:
1998
Dec 1987–Sep 1988
10-Month
14.78"
(375.41mm)
18.67"
(474.22mm)
-3.89"
(-98.81mm)
39th Driest
Driest since:
1924
89th Wettest
Wettest since:
1983
Nov 1987–Sep 1988
11-Month
17.04"
(432.82mm)
21.25"
(539.75mm)
-4.21"
(-106.93mm)
44th Driest
Driest since:
1924
84th Wettest
Wettest since:
1983
Oct 1987–Sep 1988
12-Month
18.37"
(466.60mm)
22.45"
(570.23mm)
-4.08"
(-103.63mm)
47th Driest
Driest since:
1924
81st Wettest
Wettest since:
1983
Apr 1987–Sep 1988
18-Month
19.99"
(507.75mm)
26.19"
(665.23mm)
-6.20"
(-157.48mm)
25th Driest
Driest since:
2021
103rd Wettest
Wettest since:
1983
Oct 1986–Sep 1988
24-Month
32.34"
(821.44mm)
44.90"
(1,140.46mm)
-12.56"
(-319.02mm)
12th Driest
Driest since:
1977
115th Wettest
Wettest since:
1983
Oct 1985–Sep 1988
36-Month
60.77"
(1,543.56mm)
67.32"
(1,709.93mm)
-6.55"
(-166.37mm)
44th Driest
Driest since:
2022
82nd Wettest
Wettest since:
1984
Oct 1984–Sep 1988
48-Month
79.01"
(2,006.85mm)
89.51"
(2,273.55mm)
-10.50"
(-266.70mm)
29th Driest
Driest since:
2015
96th Wettest
Wettest since:
1998
Oct 1983–Sep 1988
60-Month
101.39"
(2,575.31mm)
111.69"
(2,836.93mm)
-10.30"
(-261.62mm)
35th Driest
Driest since:
1991
89th Wettest
Wettest since:
1999

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