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 June 2020. For more information, please see Climatological Rankings.


Contiguous U.S.

Precipitation Rankings, May 1977

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 1977
1-Month
2.67"
(67.82mm)
2.91"
(73.91mm)
-0.24"
(-6.09mm)
40th Driest Driest since: 1970 1934
87th Wettest Wettest since: 1976 2019
Ties: 1941
Apr–May 1977
2-Month
4.94"
(125.48mm)
5.43"
(137.92mm)
-0.49"
(-12.44mm)
31st Driest Driest since: 1971 1934
96th Wettest Wettest since: 1976 1957
Mar–May 1977
3-Month
8.04"
(204.22mm)
7.94"
(201.68mm)
0.10"
(2.54mm)
71st Driest Driest since: 1976 1925
56th Wettest Wettest since: 1975 1957, 1991
Feb–May 1977
4-Month
9.27"
(235.46mm)
10.07"
(255.78mm)
-0.80"
(-20.32mm)
27th Driest Driest since: 1972 1925
100th Wettest Wettest since: 1976 2019
Jan–May 1977
5-Month
10.85"
(275.59mm)
12.39"
(314.71mm)
-1.54"
(-39.12mm)
11th Driest Driest since: 1963 1934
116th Wettest Wettest since: 1976 2019
Dec 1976–May 1977
6-Month
12.21"
(310.13mm)
14.73"
(374.14mm)
-2.52"
(-64.01mm)
4th Driest Driest since: 1963 1931
122nd Wettest Wettest since: 1976 2019
Nov 1976–May 1977
7-Month
13.32"
(338.33mm)
16.96"
(430.78mm)
-3.64"
(-92.45mm)
2nd Driest Driest since: 1934 1934
124th Wettest Wettest since: 1976 1983
Oct 1976–May 1977
8-Month
15.76"
(400.30mm)
19.13"
(485.90mm)
-3.37"
(-85.60mm)
4th Driest Driest since: 1934 1934
122nd Wettest Wettest since: 1976 2019
Sep 1976–May 1977
9-Month
18.21"
(462.53mm)
21.62"
(549.15mm)
-3.41"
(-86.62mm)
4th Driest Driest since: 1934 1934
122nd Wettest Wettest since: 1976 2019
Aug 1976–May 1977
10-Month
20.21"
(513.33mm)
24.25"
(615.95mm)
-4.04"
(-102.62mm)
3rd Driest Driest since: 1934 1918
123rd Wettest Wettest since: 1976 2019
Jul 1976–May 1977
11-Month
22.95"
(582.93mm)
27.03"
(686.56mm)
-4.08"
(-103.63mm)
5th Driest Driest since: 1934 1931
121st Wettest Wettest since: 1976 2019
Jun 1976–May 1977
12-Month
25.72"
(653.29mm)
29.95"
(760.73mm)
-4.23"
(-107.44mm)
5th Driest Driest since: 1934 1934
121st Wettest Wettest since: 1976 2019
Dec 1975–May 1977
18-Month
39.27"
(997.46mm)
44.70"
(1,135.38mm)
-5.43"
(-137.92mm)
5th Driest Driest since: 1931 1931
120th Wettest Wettest since: 1976 2019
Jun 1975–May 1977
24-Month
55.62"
(1,412.75mm)
59.92"
(1,521.97mm)
-4.30"
(-109.22mm)
17th Driest Driest since: 1964 1931
108th Wettest Wettest since: 1976 2020
Jun 1974–May 1977
36-Month
87.73"
(2,228.34mm)
89.88"
(2,282.95mm)
-2.15"
(-54.61mm)
39th Driest Driest since: 1968 1955
85th Wettest Wettest since: 1976 2019
Ties: 1938
Jun 1973–May 1977
48-Month
120.97"
(3,072.64mm)
119.78"
(3,042.41mm)
1.19"
(30.23mm)
69th Driest Driest since: 1972 1956
54th Wettest Wettest since: 1976 2019
Jun 1972–May 1977
60-Month
156.00"
(3,962.40mm)
149.64"
(3,800.86mm)
6.36"
(161.54mm)
102nd Driest Driest since: 1973 1957
20th Wettest Wettest since: 1976 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published July 2020, retrieved on July 11, 2020 from https://www.ncdc.noaa.gov/cag/