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


Contiguous U.S.

Precipitation Rankings, April 1978

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
April 1978
1-Month
2.54"
(64.52mm)
2.52"
(64.01mm)
0.02"
(0.51mm)
71st Driest Driest since: 1977 1987
57th Wettest Wettest since: 1975 1957
Ties: 1933, 1948, 2006, 2008
Mar–Apr 1978
2-Month
4.80"
(121.92mm)
5.03"
(127.76mm)
-0.23"
(-5.84mm)
52nd Driest Driest since: 1972 1910
76th Wettest Wettest since: 1977 1973
Ties: 1996, 2007
Feb–Apr 1978
3-Month
6.57"
(166.88mm)
7.16"
(181.86mm)
-0.59"
(-14.98mm)
29th Driest Driest since: 1972 1910
99th Wettest Wettest since: 1977 1983
Ties: 1981
Jan–Apr 1978
4-Month
9.75"
(247.65mm)
9.47"
(240.54mm)
0.28"
(7.11mm)
82nd Driest Driest since: 1977 1910
46th Wettest Wettest since: 1975 1998
Dec 1977–Apr 1978
5-Month
12.47"
(316.74mm)
11.82"
(300.23mm)
0.65"
(16.51mm)
93rd Driest Driest since: 1977 1931
34th Wettest Wettest since: 1975 1983
Nov 1977–Apr 1978
6-Month
15.33"
(389.38mm)
14.05"
(356.87mm)
1.28"
(32.51mm)
102nd Driest Driest since: 1977 1977
25th Wettest Wettest since: 1975 1983
Oct 1977–Apr 1978
7-Month
17.52"
(445.01mm)
16.22"
(411.99mm)
1.30"
(33.02mm)
96th Driest Driest since: 1977 1981
31st Wettest Wettest since: 1975 1983
Sep 1977–Apr 1978
8-Month
20.74"
(526.80mm)
18.71"
(475.23mm)
2.03"
(51.57mm)
110th Driest Driest since: 1977 1918
17th Wettest Wettest since: 1974 2019
Ties: 2020
Aug 1977–Apr 1978
9-Month
24.29"
(616.97mm)
21.33"
(541.78mm)
2.96"
(75.19mm)
118th Driest Driest since: 1977 1918
9th Wettest Wettest since: 1973 2019
Jul 1977–Apr 1978
10-Month
26.85"
(681.99mm)
24.12"
(612.65mm)
2.73"
(69.34mm)
115th Driest Driest since: 1977 1931
12th Wettest Wettest since: 1974 2019
Jun 1977–Apr 1978
11-Month
29.34"
(745.24mm)
27.04"
(686.82mm)
2.30"
(58.42mm)
110th Driest Driest since: 1977 1931
17th Wettest Wettest since: 1974 2019
May 1977–Apr 1978
12-Month
32.01"
(813.05mm)
29.95"
(760.73mm)
2.06"
(52.32mm)
103rd Driest Driest since: 1977 1918
24th Wettest Wettest since: 1974 2019
Nov 1976–Apr 1978
18-Month
42.66"
(1,083.56mm)
44.02"
(1,118.11mm)
-1.36"
(-34.55mm)
38th Driest Driest since: 1977 1931
88th Wettest Wettest since: 1976 2020
May 1976–Apr 1978
24-Month
57.99"
(1,472.95mm)
59.92"
(1,521.97mm)
-1.93"
(-49.02mm)
33rd Driest Driest since: 1977 1955
93rd Wettest Wettest since: 1976 2020
Ties: 1982
May 1975–Apr 1978
36-Month
88.24"
(2,241.30mm)
89.88"
(2,282.95mm)
-1.64"
(-41.65mm)
43rd Driest Driest since: 1977 1955
82nd Wettest Wettest since: 1976 2020
May 1974–Apr 1978
48-Month
120.14"
(3,051.56mm)
119.77"
(3,042.16mm)
0.37"
(9.40mm)
60th Driest Driest since: 1970 1956
64th Wettest Wettest since: 1977 2019
May 1973–Apr 1978
60-Month
153.34"
(3,894.84mm)
149.63"
(3,800.60mm)
3.71"
(94.24mm)
86th Driest Driest since: 1972 1957
37th Wettest Wettest since: 1977 2020
Ties: 1962

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published December 2021, retrieved on December 9, 2021 from https://www.ncdc.noaa.gov/cag/