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, May 1901

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
May 1901
1-Month
2.66"
(67.56mm)
2.91"
(73.91mm)
-0.25"
(-6.35mm)
37th Driest Driest since: 1900 1934
92nd Wettest Wettest since: 1899 2019
Ties: 1969, 2000
Apr–May 1901
2-Month
5.19"
(131.83mm)
5.43"
(137.92mm)
-0.24"
(-6.09mm)
45th Driest Driest since: 1899 1934
84th Wettest Wettest since: 1900 1957
Ties: 1986, 1998
Mar–May 1901
3-Month
7.48"
(189.99mm)
7.94"
(201.68mm)
-0.46"
(-11.69mm)
39th Driest Driest since: 1899 1925
90th Wettest Wettest since: 1900 1957, 1991
Ties: 1959
Feb–May 1901
4-Month
9.61"
(244.09mm)
10.07"
(255.78mm)
-0.46"
(-11.69mm)
43rd Driest Driest since: 1898 1925
86th Wettest Wettest since: 1900 2019
Ties: 1917, 1955, 2021
Jan–May 1901
5-Month
11.60"
(294.64mm)
12.39"
(314.71mm)
-0.79"
(-20.07mm)
33rd Driest Driest since: 1895 1934
96th Wettest Wettest since: 1900 2019
Ties: 1968
Dec 1900–May 1901
6-Month
13.26"
(336.80mm)
14.73"
(374.14mm)
-1.47"
(-37.34mm)
17th Driest Driest since: 1901 1931
111th Wettest Wettest since: 1900 2019
Nov 1900–May 1901
7-Month
15.63"
(397.00mm)
16.96"
(430.78mm)
-1.33"
(-33.78mm)
26th Driest Driest since: 1901 1934
102nd Wettest Wettest since: 1900 1983
Oct 1900–May 1901
8-Month
18.38"
(466.85mm)
19.13"
(485.90mm)
-0.75"
(-19.05mm)
40th Driest Driest since: 1896 1934
88th Wettest Wettest since: 1900 2019
Sep 1900–May 1901
9-Month
21.31"
(541.27mm)
21.62"
(549.15mm)
-0.31"
(-7.88mm)
56th Driest Driest since: 1900 1934
72nd Wettest Wettest since: 1897 2019
Aug 1900–May 1901
10-Month
23.73"
(602.74mm)
24.25"
(615.95mm)
-0.52"
(-13.21mm)
50th Driest Driest since: 1900 1918
78th Wettest Wettest since: 1899 2019
Jul 1900–May 1901
11-Month
26.80"
(680.72mm)
27.03"
(686.56mm)
-0.23"
(-5.84mm)
56th Driest Driest since: 1900 1931
72nd Wettest Wettest since: 1899 2019
Ties: 1905
Jun 1900–May 1901
12-Month
29.83"
(757.68mm)
29.95"
(760.73mm)
-0.12"
(-3.05mm)
56th Driest Driest since: 1900 1934
72nd Wettest Wettest since: 1899 2019
Dec 1899–May 1901
18-Month
44.59"
(1,132.59mm)
44.70"
(1,135.38mm)
-0.11"
(-2.79mm)
58th Driest Driest since: 1900 1931
69th Wettest Wettest since: 1897 2019
Jun 1899–May 1901
24-Month
58.71"
(1,491.23mm)
59.92"
(1,521.97mm)
-1.21"
(-30.74mm)
39th Driest Driest since: 1899 1931
88th Wettest Wettest since: 1900 2020
Jun 1898–May 1901
36-Month
88.76"
(2,254.50mm)
89.88"
(2,282.95mm)
-1.12"
(-28.45mm)
45th Driest Driest since: 1900 1955
81st Wettest Wettest since: 1899 2019
Jun 1897–May 1901
48-Month
116.87"
(2,968.50mm)
119.78"
(3,042.41mm)
-2.91"
(-73.91mm)
35th Driest Driest since: 1901 1956
90th Wettest Wettest since: 1900 2019
Jun 1896–May 1901
60-Month
147.57"
(3,748.28mm)
149.64"
(3,800.86mm)
-2.07"
(-52.58mm)
43rd Driest Driest since: 1900 1957
81st Wettest Wettest to Date 2020
Ties: 1981

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, Precipitation, published September 2022, retrieved on September 26, 2022 from https://www.ncdc.noaa.gov/cag/