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 1928

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 1928
1-Month
0.10"
(2.54mm)
0.45"
(11.43mm)
-0.35"
(-8.89mm)
17th Driest
Driest since:
1974
112th Wettest
Wettest since:
1918
Ties: 1944, 1987, 2012, 2016
Aug–Sep 1928
2-Month
0.12"
(3.05mm)
0.69"
(17.53mm)
-0.57"
(-14.48mm)
3rd Driest
Driest since:
1937, 2018
126th Wettest
Wettest since:
1983
Ties: 2002, 2006
Jul–Sep 1928
3-Month
0.14"
(3.56mm)
0.87"
(22.10mm)
-0.73"
(-18.54mm)
1st Driest
Driest since:
1928
128th Wettest
Wettest since:
1976
Jun–Sep 1928
4-Month
0.26"
(6.60mm)
1.22"
(30.99mm)
-0.96"
(-24.39mm)
2nd Driest
Driest since:
2002
127th Wettest
Wettest since:
1982
May–Sep 1928
5-Month
0.82"
(20.83mm)
2.10"
(53.34mm)
-1.28"
(-32.51mm)
2nd Driest
Driest since:
1924
127th Wettest
Wettest since:
1998
Apr–Sep 1928
6-Month
2.32"
(58.93mm)
3.74"
(95.00mm)
-1.42"
(-36.07mm)
18th Driest
Driest since:
1924
111th Wettest
Wettest since:
1896
Ties: 1968
Mar–Sep 1928
7-Month
6.82"
(173.23mm)
6.95"
(176.53mm)
-0.13"
(-3.30mm)
78th Driest
Driest since:
2008
51st Wettest
Wettest since:
1995
Ties: 1915
Feb–Sep 1928
8-Month
9.05"
(229.87mm)
10.80"
(274.32mm)
-1.75"
(-44.45mm)
57th Driest
Driest since:
2021
72nd Wettest
Wettest since:
1998
Jan–Sep 1928
9-Month
10.76"
(273.30mm)
15.05"
(382.27mm)
-4.29"
(-108.97mm)
30th Driest
Driest since:
2022
99th Wettest
Wettest since:
1998
Dec 1927–Sep 1928
10-Month
13.67"
(347.22mm)
18.67"
(474.22mm)
-5.00"
(-127.00mm)
27th Driest
Driest since:
1924
101st Wettest
Wettest since:
1983
Nov 1927–Sep 1928
11-Month
17.32"
(439.93mm)
21.25"
(539.75mm)
-3.93"
(-99.82mm)
48th Driest
Driest since:
1924
80th Wettest
Wettest since:
1983
Oct 1927–Sep 1928
12-Month
19.15"
(486.41mm)
22.45"
(570.23mm)
-3.30"
(-83.82mm)
53rd Driest
Driest since:
1924
75th Wettest
Wettest since:
1983
Apr 1927–Sep 1928
18-Month
22.59"
(573.79mm)
26.19"
(665.23mm)
-3.60"
(-91.44mm)
46th Driest
Driest since:
2021
82nd Wettest
Wettest since:
1983
Oct 1926–Sep 1928
24-Month
46.62"
(1,184.15mm)
44.90"
(1,140.46mm)
1.72"
(43.69mm)
79th Driest
Driest since:
1977
48th Wettest
Wettest since:
1983
Oct 1925–Sep 1928
36-Month
64.36"
(1,634.74mm)
67.32"
(1,709.93mm)
-2.96"
(-75.19mm)
58th Driest
Driest since:
2022
68th Wettest
Wettest since:
1984
Oct 1924–Sep 1928
48-Month
88.40"
(2,245.36mm)
89.51"
(2,273.55mm)
-1.11"
(-28.19mm)
67th Driest
Driest since:
2015
58th Wettest
Wettest since:
1998
Oct 1923–Sep 1928
60-Month
98.34"
(2,497.84mm)
111.69"
(2,836.93mm)
-13.35"
(-339.09mm)
26th Driest
Driest since:
1991
98th Wettest
Wettest since:
1999

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