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 1902

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
September 1902
1-Month
0.05"
(1.27mm)
0.45"
(11.43mm)
-0.40"
(-10.16mm)
7th Driest
Driest since:
1974
122nd Wettest
Wettest since:
1918
Ties: 1992
Aug–Sep 1902
2-Month
0.17"
(4.32mm)
0.69"
(17.53mm)
-0.52"
(-13.21mm)
12th Driest
Driest since:
1937, 2018
117th Wettest
Wettest since:
1983
Jul–Sep 1902
3-Month
0.36"
(9.14mm)
0.87"
(22.10mm)
-0.51"
(-12.96mm)
19th Driest
Driest since:
1928
110th Wettest
Wettest since:
1976
Ties: 1970
Jun–Sep 1902
4-Month
0.44"
(11.18mm)
1.22"
(30.99mm)
-0.78"
(-19.81mm)
10th Driest
Driest since:
2002
119th Wettest
Wettest since:
1982
Ties: 1960
May–Sep 1902
5-Month
1.38"
(35.05mm)
2.10"
(53.34mm)
-0.72"
(-18.29mm)
26th Driest
Driest since:
1924
103rd Wettest
Wettest since:
1998
Apr–Sep 1902
6-Month
3.49"
(88.65mm)
3.74"
(95.00mm)
-0.25"
(-6.35mm)
69th Driest
Driest since:
1924
60th Wettest
Wettest since:
1896
Mar–Sep 1902
7-Month
6.69"
(169.93mm)
6.95"
(176.53mm)
-0.26"
(-6.60mm)
72nd Driest
Driest since:
2008
57th Wettest
Wettest since:
1995
Ties: 2017
Feb–Sep 1902
8-Month
14.58"
(370.33mm)
10.80"
(274.32mm)
3.78"
(96.01mm)
113th Driest
Driest since:
2021
16th Wettest
Wettest to Date
1998
Jan–Sep 1902
9-Month
15.87"
(403.10mm)
15.05"
(382.27mm)
0.82"
(20.83mm)
83rd Driest
Driest since:
2022
46th Wettest
Wettest since:
1998
Dec 1901–Sep 1902
10-Month
17.54"
(445.52mm)
18.67"
(474.22mm)
-1.13"
(-28.70mm)
69th Driest
Driest since:
1924
59th Wettest
Wettest since:
1983
Nov 1901–Sep 1902
11-Month
20.11"
(510.79mm)
21.25"
(539.75mm)
-1.14"
(-28.96mm)
65th Driest
Driest since:
1924
63rd Wettest
Wettest since:
1983
Oct 1901–Sep 1902
12-Month
21.61"
(548.89mm)
22.45"
(570.23mm)
-0.84"
(-21.34mm)
66th Driest
Driest since:
1924
62nd Wettest
Wettest since:
1983
Apr 1901–Sep 1902
18-Month
26.48"
(672.59mm)
26.19"
(665.23mm)
0.29"
(7.36mm)
78th Driest
Driest since:
2021
50th Wettest
Wettest since:
1983
Oct 1900–Sep 1902
24-Month
47.42"
(1,204.47mm)
44.90"
(1,140.46mm)
2.52"
(64.01mm)
84th Driest
Driest since:
1977
43rd Wettest
Wettest since:
1983
Oct 1899–Sep 1902
36-Month
69.54"
(1,766.32mm)
67.32"
(1,709.93mm)
2.22"
(56.39mm)
80th Driest
Driest since:
2022
46th Wettest
Wettest to Date
1984
Oct 1898–Sep 1902
48-Month
86.67"
(2,201.42mm)
89.51"
(2,273.55mm)
-2.84"
(-72.13mm)
57th Driest
Driest since:
2015
68th Wettest
Wettest to Date
1998
Oct 1897–Sep 1902
60-Month
101.83"
(2,586.48mm)
111.69"
(2,836.93mm)
-9.86"
(-250.45mm)
38th Driest
Driest since:
1991
86th Wettest
Wettest since:
1999

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