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 1921

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
May 1921
1-Month
2.55"
(64.77mm)
2.91"
(73.91mm)
-0.36"
(-9.14mm)
27th Driest Driest since: 1914 1934
101st Wettest Wettest since: 1920 2019
Ties: 1985
Apr–May 1921
2-Month
5.34"
(135.64mm)
5.43"
(137.92mm)
-0.09"
(-2.28mm)
63rd Driest Driest since: 1917 1934
65th Wettest Wettest since: 1920 1957
Ties: 1959
Mar–May 1921
3-Month
7.86"
(199.64mm)
7.94"
(201.68mm)
-0.08"
(-2.04mm)
61st Driest Driest since: 1918 1925
67th Wettest Wettest since: 1920 1957, 1991
Feb–May 1921
4-Month
9.63"
(244.60mm)
10.07"
(255.78mm)
-0.44"
(-11.18mm)
47th Driest Driest since: 1918 1925
81st Wettest Wettest since: 1920 2019
Ties: 2021
Jan–May 1921
5-Month
11.74"
(298.20mm)
12.39"
(314.71mm)
-0.65"
(-16.51mm)
40th Driest Driest since: 1918 1934
88th Wettest Wettest since: 1920 2019
Dec 1920–May 1921
6-Month
14.49"
(368.05mm)
14.73"
(374.14mm)
-0.24"
(-6.09mm)
55th Driest Driest since: 1918 1931
72nd Wettest Wettest since: 1920 2019
Nov 1920–May 1921
7-Month
16.75"
(425.45mm)
16.96"
(430.78mm)
-0.21"
(-5.33mm)
58th Driest Driest since: 1918 1934
69th Wettest Wettest since: 1920 1983
Ties: 1900
Oct 1920–May 1921
8-Month
18.92"
(480.57mm)
19.13"
(485.90mm)
-0.21"
(-5.33mm)
54th Driest Driest since: 1918 1934
73rd Wettest Wettest since: 1920 2019
Sep 1920–May 1921
9-Month
21.36"
(542.54mm)
21.62"
(549.15mm)
-0.26"
(-6.61mm)
57th Driest Driest since: 1918 1934
70th Wettest Wettest since: 1920 2019
Aug 1920–May 1921
10-Month
24.76"
(628.90mm)
24.25"
(615.95mm)
0.51"
(12.95mm)
71st Driest Driest since: 1918 1918
56th Wettest Wettest since: 1920 2019
Jul 1920–May 1921
11-Month
27.46"
(697.48mm)
27.03"
(686.56mm)
0.43"
(10.92mm)
70th Driest Driest since: 1918 1931
57th Wettest Wettest since: 1920 2019
Ties: 1947
Jun 1920–May 1921
12-Month
30.35"
(770.89mm)
29.95"
(760.73mm)
0.40"
(10.16mm)
70th Driest Driest since: 1919 1934
57th Wettest Wettest since: 1920 2019
Ties: 1962
Dec 1919–May 1921
18-Month
44.85"
(1,139.19mm)
44.70"
(1,135.38mm)
0.15"
(3.81mm)
64th Driest Driest since: 1919 1931
62nd Wettest Wettest since: 1920 2019
Ties: 1962
Jun 1919–May 1921
24-Month
61.93"
(1,573.02mm)
59.92"
(1,521.97mm)
2.01"
(51.05mm)
89th Driest Driest since: 1920 1931
37th Wettest Wettest since: 1916 2020
Jun 1918–May 1921
36-Month
92.19"
(2,341.63mm)
89.88"
(2,282.95mm)
2.31"
(58.68mm)
84th Driest Driest since: 1920 1955
41st Wettest Wettest since: 1909 2019
Jun 1917–May 1921
48-Month
117.13"
(2,975.10mm)
119.78"
(3,042.41mm)
-2.65"
(-67.31mm)
36th Driest Driest since: 1920 1956
88th Wettest Wettest since: 1917 2019
Jun 1916–May 1921
60-Month
145.69"
(3,700.53mm)
149.64"
(3,800.86mm)
-3.95"
(-100.33mm)
30th Driest Driest since: 1918 1957
93rd Wettest Wettest since: 1920 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2021, retrieved on October 24, 2021 from https://www.ncdc.noaa.gov/cag/