National Rankings

National Data Info
Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Contiguous U.S.

Precipitation Rankings, April 1976

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
April 1976
1-Month 		2.29"
(58.17mm)		 2.52"
(64.01mm)		 -0.23"
(-5.84mm)		 42nd Driest
Driest since:
 1987
87th Wettest
Wettest since:
 1957
Mar–Apr 1976
2-Month 		4.86"
(123.44mm)		 5.03"
(127.76mm)		 -0.17"
(-4.32mm)		 59th Driest
Driest since:
 1910
70th Wettest
Wettest since:
 1973
Feb–Apr 1976
3-Month 		6.75"
(171.45mm)		 7.16"
(181.86mm)		 -0.41"
(-10.41mm)		 48th Driest
Driest since:
 1910
81st Wettest
Wettest since:
 1983
Jan–Apr 1976
4-Month 		8.51"
(216.15mm)		 9.48"
(240.79mm)		 -0.97"
(-24.64mm)		 21st Driest
Driest since:
 1910
108th Wettest
Wettest since:
 1998
Dec 1975–Apr 1976
5-Month 		10.62"
(269.75mm)		 11.82"
(300.23mm)		 -1.20"
(-30.48mm)		 20th Driest
Driest since:
 1931
108th Wettest
Wettest since:
 1983
Nov 1975–Apr 1976
6-Month 		12.90"
(327.66mm)		 14.05"
(356.87mm)		 -1.15"
(-29.21mm)		 24th Driest
Driest since:
 1977
104th Wettest
Wettest since:
 1983
Oct 1975–Apr 1976
7-Month 		15.20"
(386.08mm)		 16.22"
(411.99mm)		 -1.02"
(-25.91mm)		 30th Driest
Driest since:
 1981
98th Wettest
Wettest since:
 1983
Ties: 1898
Sep 1975–Apr 1976
8-Month 		17.86"
(453.64mm)		 18.71"
(475.23mm)		 -0.85"
(-21.59mm)		 41st Driest
Driest since:
 1918
87th Wettest
Wettest since:
 2019
Ties: 1989
Aug 1975–Apr 1976
9-Month 		20.69"
(525.53mm)		 21.33"
(541.78mm)		 -0.64"
(-16.25mm)		 42nd Driest
Driest since:
 1918
86th Wettest
Wettest since:
 2019
Jul 1975–Apr 1976
10-Month 		23.66"
(600.96mm)		 24.12"
(612.65mm)		 -0.46"
(-11.69mm)		 47th Driest
Driest since:
 1931
81st Wettest
Wettest since:
 2019
Jun 1975–Apr 1976
11-Month 		26.97"
(685.04mm)		 27.04"
(686.82mm)		 -0.07"
(-1.78mm)		 52nd Driest
Driest since:
 1931
76th Wettest
Wettest since:
 2019
May 1975–Apr 1976
12-Month 		30.25"
(768.35mm)		 29.95"
(760.73mm)		 0.30"
(7.62mm)		 63rd Driest
Driest since:
 1918
65th Wettest
Wettest since:
 2019
Nov 1974–Apr 1976
18-Month 		46.14"
(1,171.96mm)		 44.02"
(1,118.11mm)		 2.12"
(53.85mm)		 97th Driest
Driest since:
 1931
30th Wettest
Wettest since:
 2020
May 1974–Apr 1976
24-Month 		62.15"
(1,578.61mm)		 59.92"
(1,521.97mm)		 2.23"
(56.64mm)		 92nd Driest
Driest since:
 1955
35th Wettest
Wettest since:
 2020
May 1973–Apr 1976
36-Month 		95.35"
(2,421.89mm)		 89.88"
(2,282.95mm)		 5.47"
(138.94mm)		 108th Driest
Driest since:
 1955
18th Wettest
Wettest since:
 2020
May 1972–Apr 1976
48-Month 		130.30"
(3,309.62mm)		 119.77"
(3,042.16mm)		 10.53"
(267.46mm)		 117th Driest
Driest since:
 1956
8th Wettest
Wettest since:
 2019
May 1971–Apr 1976
60-Month 		160.81"
(4,084.57mm)		 149.63"
(3,800.60mm)		 11.18"
(283.97mm)		 115th Driest
Driest since:
 1957
9th Wettest
Wettest to Date
 2020

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