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 September 2021. For more information, please see Climatological Rankings.


Contiguous U.S.

Precipitation Rankings, May 1947

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
May 1947
1-Month
3.19"
(81.03mm)
2.91"
(73.91mm)
0.28"
(7.12mm)
90th Driest Driest since: 1945 1934
38th Wettest Wettest since: 1946 2019
Apr–May 1947
2-Month
6.20"
(157.48mm)
5.43"
(137.92mm)
0.77"
(19.56mm)
107th Driest Driest since: 1946 1934
21st Wettest Wettest since: 1944 1957
Mar–May 1947
3-Month
8.47"
(215.14mm)
7.94"
(201.68mm)
0.53"
(13.46mm)
97th Driest Driest since: 1946 1925
31st Wettest Wettest since: 1945 1957, 1991
Ties: 2020
Feb–May 1947
4-Month
9.50"
(241.30mm)
10.07"
(255.78mm)
-0.57"
(-14.48mm)
38th Driest Driest since: 1939 1925
90th Wettest Wettest since: 1946 2019
Jan–May 1947
5-Month
11.93"
(303.02mm)
12.39"
(314.71mm)
-0.46"
(-11.69mm)
50th Driest Driest since: 1943 1934
78th Wettest Wettest since: 1946 2019
Ties: 1951
Dec 1946–May 1947
6-Month
13.87"
(352.30mm)
14.73"
(374.14mm)
-0.86"
(-21.84mm)
38th Driest Driest since: 1939 1931
89th Wettest Wettest since: 1946 2019
Ties: 1987
Nov 1946–May 1947
7-Month
16.95"
(430.53mm)
16.96"
(430.78mm)
-0.01"
(-0.25mm)
63rd Driest Driest since: 1942 1934
64th Wettest Wettest since: 1946 1983
Oct 1946–May 1947
8-Month
19.67"
(499.62mm)
19.13"
(485.90mm)
0.54"
(13.72mm)
78th Driest Driest since: 1946 1934
49th Wettest Wettest since: 1945 2019
Ties: 1945
Sep 1946–May 1947
9-Month
22.31"
(566.67mm)
21.62"
(549.15mm)
0.69"
(17.52mm)
83rd Driest Driest since: 1945 1934
44th Wettest Wettest since: 1946 2019
Aug 1946–May 1947
10-Month
24.89"
(632.21mm)
24.25"
(615.95mm)
0.64"
(16.26mm)
74th Driest Driest since: 1944 1918
53rd Wettest Wettest since: 1946 2019
Jul 1946–May 1947
11-Month
27.46"
(697.48mm)
27.03"
(686.56mm)
0.43"
(10.92mm)
70th Driest Driest since: 1945 1931
57th Wettest Wettest since: 1946 2019
Ties: 1921
Jun 1946–May 1947
12-Month
30.34"
(770.64mm)
29.95"
(760.73mm)
0.39"
(9.91mm)
68th Driest Driest since: 1945 1934
59th Wettest Wettest since: 1946 2019
Ties: 1945
Dec 1945–May 1947
18-Month
45.72"
(1,161.29mm)
44.70"
(1,135.38mm)
1.02"
(25.91mm)
79th Driest Driest since: 1944 1931
47th Wettest Wettest since: 1946 2019
Ties: 1927
Jun 1945–May 1947
24-Month
62.46"
(1,586.48mm)
59.92"
(1,521.97mm)
2.54"
(64.51mm)
94th Driest Driest since: 1946 1931
32nd Wettest Wettest since: 1946 2020
Ties: 1946
Jun 1944–May 1947
36-Month
92.80"
(2,357.12mm)
89.88"
(2,282.95mm)
2.92"
(74.17mm)
90th Driest Driest since: 1946 1955
35th Wettest Wettest since: 1944 2019
Jun 1943–May 1947
48-Month
121.60"
(3,088.64mm)
119.78"
(3,042.41mm)
1.82"
(46.23mm)
76th Driest Driest since: 1943 1956
48th Wettest Wettest since: 1946 2019
Jun 1942–May 1947
60-Month
152.77"
(3,880.36mm)
149.64"
(3,800.86mm)
3.13"
(79.50mm)
79th Driest Driest since: 1944 1957
44th Wettest Wettest since: 1946 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2021, retrieved on October 19, 2021 from https://www.ncdc.noaa.gov/cag/