Climate at a Glance

Statewide Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of September 2021. For more information, please see Climatological Rankings.


California

Precipitation Rankings, September 1940

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 1940
1-Month
0.64"
(16.26mm)
0.45"
(11.43mm)
0.19"
(4.83mm)
101st Driest Driest since: 1938 1974
27th Wettest Wettest since: 1939 1918
Aug–Sep 1940
2-Month
0.66"
(16.76mm)
0.69"
(17.53mm)
-0.03"
(-0.77mm)
76th Driest Driest since: 1938 1937, 2018
52nd Wettest Wettest since: 1939 1983
Ties: 1910, 1913
Jul–Sep 1940
3-Month
0.67"
(17.02mm)
0.87"
(22.10mm)
-0.20"
(-5.08mm)
54th Driest Driest since: 1937 1928
74th Wettest Wettest since: 1939 1976
Jun–Sep 1940
4-Month
0.80"
(20.32mm)
1.22"
(30.99mm)
-0.42"
(-10.67mm)
32nd Driest Driest since: 1935 2002
96th Wettest Wettest since: 1939 1982
May–Sep 1940
5-Month
1.48"
(37.59mm)
2.10"
(53.34mm)
-0.62"
(-15.75mm)
30th Driest Driest since: 1937 1924
98th Wettest Wettest since: 1939 1998
Ties: 1917, 2017
Apr–Sep 1940
6-Month
2.72"
(69.09mm)
3.74"
(95.00mm)
-1.02"
(-25.91mm)
31st Driest Driest since: 1928 1924
97th Wettest Wettest since: 1939 1896
Mar–Sep 1940
7-Month
6.46"
(164.08mm)
6.95"
(176.53mm)
-0.49"
(-12.45mm)
67th Driest Driest since: 1939 2008
61st Wettest Wettest since: 1938 1995
Feb–Sep 1940
8-Month
14.23"
(361.44mm)
10.80"
(274.32mm)
3.43"
(87.12mm)
109th Driest Driest since: 1939 2021
19th Wettest Wettest since: 1938 1998
Jan–Sep 1940
9-Month
21.28"
(540.51mm)
15.05"
(382.27mm)
6.23"
(158.24mm)
110th Driest Driest since: 1939 2013
18th Wettest Wettest since: 1938 1998
Dec 1939–Sep 1940
10-Month
24.29"
(616.97mm)
18.67"
(474.22mm)
5.62"
(142.75mm)
106th Driest Driest since: 1939 1924
21st Wettest Wettest since: 1938 1983
Nov 1939–Sep 1940
11-Month
24.75"
(628.65mm)
21.25"
(539.75mm)
3.50"
(88.90mm)
95th Driest Driest since: 1939 1924
32nd Wettest Wettest since: 1938 1983
Ties: 1943
Oct 1939–Sep 1940
12-Month
25.74"
(653.80mm)
22.45"
(570.23mm)
3.29"
(83.57mm)
94th Driest Driest since: 1939 1924
33rd Wettest Wettest since: 1938 1983
Apr 1939–Sep 1940
18-Month
28.92"
(734.57mm)
26.19"
(665.23mm)
2.73"
(69.34mm)
91st Driest Driest since: 1939 2021
36th Wettest Wettest since: 1938 1983
Oct 1938–Sep 1940
24-Month
42.09"
(1,069.09mm)
44.90"
(1,140.46mm)
-2.81"
(-71.37mm)
52nd Driest Driest since: 1935 1977
74th Wettest Wettest since: 1939 1983
Oct 1937–Sep 1940
36-Month
75.80"
(1,925.32mm)
67.32"
(1,709.93mm)
8.48"
(215.39mm)
99th Driest Driest since: 1939 2014
26th Wettest Wettest since: 1938 1984
Oct 1936–Sep 1940
48-Month
98.92"
(2,512.57mm)
89.51"
(2,273.55mm)
9.41"
(239.02mm)
98th Driest Driest since: 1939 2015
26th Wettest Wettest since: 1938 1998
Oct 1935–Sep 1940
60-Month
121.98"
(3,098.29mm)
111.69"
(2,836.93mm)
10.29"
(261.36mm)
98th Driest Driest since: 1939 1991
25th Wettest Wettest since: 1911 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2021, retrieved on October 27, 2021 from https://www.ncdc.noaa.gov/cag/