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 1929

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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
September 1929
1-Month
0.28"
(7.11mm)
0.45"
(11.43mm)
-0.17"
(-4.32mm)
63rd Driest
Driest since:
1974
66th Wettest
Wettest since:
1918
Ties: 2011
Aug–Sep 1929
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: 1988
Jul–Sep 1929
3-Month
0.55"
(13.97mm)
0.87"
(22.10mm)
-0.32"
(-8.13mm)
40th Driest
Driest since:
1928
89th Wettest
Wettest since:
1976
Ties: 1969
Jun–Sep 1929
4-Month
1.61"
(40.89mm)
1.22"
(30.99mm)
0.39"
(9.90mm)
104th Driest
Driest since:
2002
25th Wettest
Wettest since:
1982
May–Sep 1929
5-Month
1.73"
(43.94mm)
2.10"
(53.34mm)
-0.37"
(-9.40mm)
50th Driest
Driest since:
1924
79th Wettest
Wettest since:
1998
Ties: 1932, 1955
Apr–Sep 1929
6-Month
3.55"
(90.17mm)
3.74"
(95.00mm)
-0.19"
(-4.83mm)
75th Driest
Driest since:
1924
54th Wettest
Wettest since:
1896
Mar–Sep 1929
7-Month
5.39"
(136.91mm)
6.95"
(176.53mm)
-1.56"
(-39.62mm)
44th Driest
Driest since:
2008
85th Wettest
Wettest since:
1995
Ties: 1921
Feb–Sep 1929
8-Month
7.22"
(183.39mm)
10.80"
(274.32mm)
-3.58"
(-90.93mm)
23rd Driest
Driest since:
2021
106th Wettest
Wettest since:
1998
Ties: 1947
Jan–Sep 1929
9-Month
8.79"
(223.27mm)
15.05"
(382.27mm)
-6.26"
(-159.00mm)
16th Driest
Driest since:
2022
113th Wettest
Wettest since:
1998
Dec 1928–Sep 1929
10-Month
12.03"
(305.56mm)
18.67"
(474.22mm)
-6.64"
(-168.66mm)
15th Driest
Driest since:
1924
113th Wettest
Wettest since:
1983
Nov 1928–Sep 1929
11-Month
14.81"
(376.17mm)
21.25"
(539.75mm)
-6.44"
(-163.58mm)
16th Driest
Driest since:
1924
112th Wettest
Wettest since:
1983
Oct 1928–Sep 1929
12-Month
15.26"
(387.60mm)
22.45"
(570.23mm)
-7.19"
(-182.63mm)
12th Driest
Driest since:
1924
116th Wettest
Wettest since:
1983
Apr 1928–Sep 1929
18-Month
17.58"
(446.53mm)
26.19"
(665.23mm)
-8.61"
(-218.70mm)
7th Driest
Driest since:
2021
121st Wettest
Wettest since:
1983
Oct 1927–Sep 1929
24-Month
34.41"
(874.01mm)
44.90"
(1,140.46mm)
-10.49"
(-266.45mm)
22nd Driest
Driest since:
1977
105th Wettest
Wettest since:
1983
Oct 1926–Sep 1929
36-Month
61.88"
(1,571.75mm)
67.32"
(1,709.93mm)
-5.44"
(-138.18mm)
48th Driest
Driest since:
2022
78th Wettest
Wettest since:
1984
Oct 1925–Sep 1929
48-Month
79.62"
(2,022.35mm)
89.51"
(2,273.55mm)
-9.89"
(-251.20mm)
36th Driest
Driest since:
2015
89th Wettest
Wettest since:
1998
Oct 1924–Sep 1929
60-Month
103.66"
(2,632.96mm)
111.69"
(2,836.93mm)
-8.03"
(-203.97mm)
46th Driest
Driest since:
1991
78th Wettest
Wettest since:
1999

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