Climate at a Glance

National 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 January 2021. For more information, please see Climatological Rankings.


Contiguous U.S.

Precipitation Rankings, September 1931

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
September 1931
1-Month
2.06"
(52.32mm)
2.49"
(63.25mm)
-0.43"
(-10.93mm)
19th Driest Driest since: 1922 1956
108th Wettest Wettest since: 1930 1986
Aug–Sep 1931
2-Month
4.78"
(121.41mm)
5.11"
(129.79mm)
-0.33"
(-8.38mm)
33rd Driest Driest since: 1930 1956
94th Wettest Wettest since: 1928 1977
Ties: 1896
Jul–Sep 1931
3-Month
7.49"
(190.25mm)
7.88"
(200.15mm)
-0.39"
(-9.90mm)
31st Driest Driest since: 1930 1930
96th Wettest Wettest since: 1928 1915
Jun–Sep 1931
4-Month
9.63"
(244.60mm)
10.81"
(274.57mm)
-1.18"
(-29.97mm)
13th Driest Driest since: 1930 1930
114th Wettest Wettest since: 1929 1915
May–Sep 1931
5-Month
11.92"
(302.77mm)
13.72"
(348.49mm)
-1.80"
(-45.72mm)
9th Driest Driest since: 1930 1956
118th Wettest Wettest since: 1929 1915
Apr–Sep 1931
6-Month
13.99"
(355.35mm)
16.24"
(412.50mm)
-2.25"
(-57.15mm)
6th Driest Driest since: 1930 1956
121st Wettest Wettest since: 1929 1915
Mar–Sep 1931
7-Month
16.30"
(414.02mm)
18.75"
(476.25mm)
-2.45"
(-62.23mm)
9th Driest Driest since: 1930 1956
118th Wettest Wettest since: 1929 1973
Feb–Sep 1931
8-Month
18.14"
(460.76mm)
20.88"
(530.35mm)
-2.74"
(-69.59mm)
8th Driest Driest since: 1930 1930
119th Wettest Wettest since: 1929 2019
Jan–Sep 1931
9-Month
19.70"
(500.38mm)
23.20"
(589.28mm)
-3.50"
(-88.90mm)
4th Driest Driest since: 1910 1934
123rd Wettest Wettest since: 1930 2019
Dec 1930–Sep 1931
10-Month
20.98"
(532.89mm)
25.54"
(648.72mm)
-4.56"
(-115.83mm)
1st Driest Driest to Date 1931
125th Wettest Wettest since: 1930 2019
Nov 1930–Sep 1931
11-Month
23.26"
(590.80mm)
27.77"
(705.36mm)
-4.51"
(-114.56mm)
2nd Driest Driest to Date 1934
124th Wettest Wettest since: 1930 2019
Oct 1930–Sep 1931
12-Month
25.57"
(649.48mm)
29.94"
(760.48mm)
-4.37"
(-111.00mm)
3rd Driest Driest since: 1918 1934
123rd Wettest Wettest since: 1930 2019
Apr 1930–Sep 1931
18-Month
38.98"
(990.09mm)
46.20"
(1,173.48mm)
-7.22"
(-183.39mm)
1st Driest Driest to Date 1931
125th Wettest Wettest since: 1930 2019
Oct 1929–Sep 1931
24-Month
52.05"
(1,322.07mm)
59.92"
(1,521.97mm)
-7.87"
(-199.90mm)
2nd Driest Driest since: 1918 1918
123rd Wettest Wettest since: 1930 2020
Oct 1928–Sep 1931
36-Month
81.55"
(2,071.37mm)
89.87"
(2,282.70mm)
-8.32"
(-211.33mm)
3rd Driest Driest to Date 1956
121st Wettest Wettest since: 1930 2019
Oct 1927–Sep 1931
48-Month
112.71"
(2,862.83mm)
119.78"
(3,042.41mm)
-7.07"
(-179.58mm)
10th Driest Driest to Date 1956
113th Wettest Wettest since: 1930 2019
Oct 1926–Sep 1931
60-Month
145.02"
(3,683.51mm)
149.66"
(3,801.36mm)
-4.64"
(-117.85mm)
24th Driest Driest since: 1926 1956
98th Wettest Wettest since: 1930 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published February 2021, retrieved on February 25, 2021 from https://www.ncdc.noaa.gov/cag/