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 2020. For more information, please see Climatological Rankings.


Contiguous U.S.

Precipitation Rankings, May 1951

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
May 1951
1-Month
2.37"
(60.20mm)
2.91"
(73.91mm)
-0.54"
(-13.71mm)
18th Driest Driest since: 1940 1934
109th Wettest Wettest since: 1950 2019
Apr–May 1951
2-Month
4.72"
(119.89mm)
5.43"
(137.92mm)
-0.71"
(-18.03mm)
20th Driest Driest since: 1939 1934
107th Wettest Wettest since: 1950 1957
Mar–May 1951
3-Month
7.32"
(185.93mm)
7.94"
(201.68mm)
-0.62"
(-15.75mm)
30th Driest Driest since: 1939 1925
97th Wettest Wettest since: 1950 1957, 1991
Feb–May 1951
4-Month
9.59"
(243.59mm)
10.07"
(255.78mm)
-0.48"
(-12.19mm)
42nd Driest Driest since: 1947 1925
85th Wettest Wettest since: 1950 2019
Jan–May 1951
5-Month
11.93"
(303.02mm)
12.39"
(314.71mm)
-0.46"
(-11.69mm)
49th Driest Driest since: 1947 1934
78th Wettest Wettest since: 1950 2019
Ties: 1947
Dec 1950–May 1951
6-Month
13.86"
(352.04mm)
14.73"
(374.14mm)
-0.87"
(-22.10mm)
36th Driest Driest since: 1939 1931
90th Wettest Wettest since: 1950 2019
Nov 1950–May 1951
7-Month
15.96"
(405.38mm)
16.96"
(430.78mm)
-1.00"
(-25.40mm)
38th Driest Driest since: 1940 1934
88th Wettest Wettest since: 1950 1983
Oct 1950–May 1951
8-Month
17.86"
(453.64mm)
19.13"
(485.90mm)
-1.27"
(-32.26mm)
26th Driest Driest since: 1940 1934
100th Wettest Wettest since: 1950 2019
Sep 1950–May 1951
9-Month
20.55"
(521.97mm)
21.62"
(549.15mm)
-1.07"
(-27.18mm)
32nd Driest Driest since: 1940 1934
94th Wettest Wettest since: 1950 2019
Aug 1950–May 1951
10-Month
23.10"
(586.74mm)
24.25"
(615.95mm)
-1.15"
(-29.21mm)
36th Driest Driest since: 1944 1918
90th Wettest Wettest since: 1950 2019
Jul 1950–May 1951
11-Month
26.96"
(684.78mm)
27.03"
(686.56mm)
-0.07"
(-1.78mm)
58th Driest Driest since: 1948 1931
68th Wettest Wettest since: 1950 2019
Jun 1950–May 1951
12-Month
29.76"
(755.90mm)
29.95"
(760.73mm)
-0.19"
(-4.83mm)
52nd Driest Driest since: 1944 1934
74th Wettest Wettest since: 1950 2019
Dec 1949–May 1951
18-Month
45.02"
(1,143.51mm)
44.70"
(1,135.38mm)
0.32"
(8.13mm)
64th Driest Driest since: 1948 1931
61st Wettest Wettest since: 1950 2019
Jun 1949–May 1951
24-Month
60.00"
(1,524.00mm)
59.92"
(1,521.97mm)
0.08"
(2.03mm)
62nd Driest Driest since: 1945 1931
63rd Wettest Wettest since: 1950 2020
Jun 1948–May 1951
36-Month
90.96"
(2,310.38mm)
89.88"
(2,282.95mm)
1.08"
(27.43mm)
73rd Driest Driest since: 1945 1955
51st Wettest Wettest since: 1950 2019
Ties: 2009
Jun 1947–May 1951
48-Month
121.21"
(3,078.73mm)
119.78"
(3,042.41mm)
1.43"
(36.32mm)
71st Driest Driest since: 1943 1956
52nd Wettest Wettest since: 1950 2019
Jun 1946–May 1951
60-Month
151.55"
(3,849.37mm)
149.64"
(3,800.86mm)
1.91"
(48.51mm)
71st Driest Driest since: 1944 1957
51st Wettest Wettest since: 1950 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2020, retrieved on October 22, 2020 from https://www.ncdc.noaa.gov/cag/