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 August 2022. For more information, please see Climatological Rankings.


Contiguous U.S.

Precipitation Rankings, September 1947

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 1947
1-Month
2.16"
(54.86mm)
2.49"
(63.25mm)
-0.33"
(-8.39mm)
26th Driest Driest since: 1943 1956
102nd Wettest Wettest since: 1946 1986
Ties: 1932
Aug–Sep 1947
2-Month
4.55"
(115.57mm)
5.11"
(129.79mm)
-0.56"
(-14.22mm)
21st Driest Driest since: 1943 1956
107th Wettest Wettest since: 1946 1977
Ties: 1929, 1937
Jul–Sep 1947
3-Month
6.54"
(166.12mm)
7.88"
(200.15mm)
-1.34"
(-34.03mm)
6th Driest Driest since: 1930 1930
122nd Wettest Wettest since: 1946 1915
Ties: 1952
Jun–Sep 1947
4-Month
10.37"
(263.40mm)
10.81"
(274.57mm)
-0.44"
(-11.17mm)
36th Driest Driest since: 1943 1930
92nd Wettest Wettest since: 1946 1915
May–Sep 1947
5-Month
13.56"
(344.42mm)
13.72"
(348.49mm)
-0.16"
(-4.07mm)
51st Driest Driest since: 1943 1956
77th Wettest Wettest since: 1946 1915
Apr–Sep 1947
6-Month
16.57"
(420.88mm)
16.24"
(412.50mm)
0.33"
(8.38mm)
72nd Driest Driest since: 1946 1956
56th Wettest Wettest since: 1945 1915
Mar–Sep 1947
7-Month
18.84"
(478.54mm)
18.75"
(476.25mm)
0.09"
(2.29mm)
61st Driest Driest since: 1946 1956
67th Wettest Wettest since: 1945 1973
Feb–Sep 1947
8-Month
19.87"
(504.70mm)
20.88"
(530.35mm)
-1.01"
(-25.65mm)
32nd Driest Driest since: 1943 1930
96th Wettest Wettest since: 1946 2019
Ties: 1953, 2007
Jan–Sep 1947
9-Month
22.30"
(566.42mm)
23.20"
(589.28mm)
-0.90"
(-22.86mm)
33rd Driest Driest since: 1943 1934
95th Wettest Wettest since: 1946 2019
Dec 1946–Sep 1947
10-Month
24.24"
(615.70mm)
25.54"
(648.72mm)
-1.30"
(-33.02mm)
28th Driest Driest since: 1939 1931
99th Wettest Wettest since: 1946 2019
Nov 1946–Sep 1947
11-Month
27.32"
(693.93mm)
27.77"
(705.36mm)
-0.45"
(-11.43mm)
49th Driest Driest since: 1943 1934
78th Wettest Wettest since: 1946 2019
Oct 1946–Sep 1947
12-Month
30.04"
(763.02mm)
29.94"
(760.48mm)
0.10"
(2.54mm)
62nd Driest Driest since: 1944 1934
65th Wettest Wettest since: 1946 2019
Apr 1946–Sep 1947
18-Month
46.12"
(1,171.45mm)
46.20"
(1,173.48mm)
-0.08"
(-2.03mm)
56th Driest Driest since: 1944 1931
71st Wettest Wettest since: 1946 2019
Oct 1945–Sep 1947
24-Month
60.33"
(1,532.38mm)
59.92"
(1,521.97mm)
0.41"
(10.41mm)
61st Driest Driest since: 1944 1918
65th Wettest Wettest since: 1946 2020
Oct 1944–Sep 1947
36-Month
92.50"
(2,349.50mm)
89.87"
(2,282.70mm)
2.63"
(66.80mm)
87th Driest Driest since: 1946 1956
38th Wettest Wettest since: 1943 2019
Oct 1943–Sep 1947
48-Month
122.12"
(3,101.85mm)
119.78"
(3,042.41mm)
2.34"
(59.44mm)
79th Driest Driest since: 1946 1956
45th Wettest Wettest since: 1945 2019
Oct 1942–Sep 1947
60-Month
151.30"
(3,843.02mm)
149.66"
(3,801.36mm)
1.64"
(41.66mm)
68th Driest Driest since: 1944 1956
55th Wettest Wettest since: 1946 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, Precipitation, published September 2022, retrieved on October 1, 2022 from https://www.ncdc.noaa.gov/cag/