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 1982

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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
April 1982
1-Month
2.52"
(64.01mm)
2.52"
(64.01mm)
0.00"
(0.00mm)
63rd Driest
Driest since:
1987
66th Wettest
Wettest since:
1957
Ties: 1965, 2020
Mar–Apr 1982
2-Month
5.03"
(127.76mm)
5.03"
(127.76mm)
0.00"
(0.00mm)
70th Driest
Driest since:
1910
59th Wettest
Wettest since:
1973
Feb–Apr 1982
3-Month
7.26"
(184.40mm)
7.16"
(181.86mm)
0.10"
(2.54mm)
80th Driest
Driest since:
1910
49th Wettest
Wettest since:
1983
Jan–Apr 1982
4-Month
10.10"
(256.54mm)
9.48"
(240.79mm)
0.62"
(15.75mm)
94th Driest
Driest since:
1910
35th Wettest
Wettest since:
1998
Dec 1981–Apr 1982
5-Month
12.51"
(317.75mm)
11.82"
(300.23mm)
0.69"
(17.52mm)
96th Driest
Driest since:
1931
32nd Wettest
Wettest since:
1983
Ties: 1965
Nov 1981–Apr 1982
6-Month
14.52"
(368.81mm)
14.05"
(356.87mm)
0.47"
(11.94mm)
88th Driest
Driest since:
1977
40th Wettest
Wettest since:
1983
Oct 1981–Apr 1982
7-Month
17.62"
(447.55mm)
16.22"
(411.99mm)
1.40"
(35.56mm)
100th Driest
Driest since:
1981
28th Wettest
Wettest since:
1983
Ties: 1952
Sep 1981–Apr 1982
8-Month
19.70"
(500.38mm)
18.71"
(475.23mm)
0.99"
(25.15mm)
95th Driest
Driest since:
1918
33rd Wettest
Wettest since:
2019
Ties: 1907, 1937
Aug 1981–Apr 1982
9-Month
22.46"
(570.48mm)
21.33"
(541.78mm)
1.13"
(28.70mm)
93rd Driest
Driest since:
1918
35th Wettest
Wettest since:
2019
Jul 1981–Apr 1982
10-Month
25.55"
(648.97mm)
24.12"
(612.65mm)
1.43"
(36.32mm)
98th Driest
Driest since:
1931
30th Wettest
Wettest since:
2019
Jun 1981–Apr 1982
11-Month
28.96"
(735.58mm)
27.04"
(686.82mm)
1.92"
(48.76mm)
105th Driest
Driest since:
1931
23rd Wettest
Wettest since:
2019
May 1981–Apr 1982
12-Month
32.51"
(825.75mm)
29.95"
(760.73mm)
2.56"
(65.02mm)
111th Driest
Driest since:
1918
17th Wettest
Wettest since:
2019
Nov 1980–Apr 1982
18-Month
43.39"
(1,102.11mm)
44.02"
(1,118.11mm)
-0.63"
(-16.00mm)
48th Driest
Driest since:
1931
79th Wettest
Wettest since:
2020
May 1980–Apr 1982
24-Month
57.99"
(1,472.95mm)
59.92"
(1,521.97mm)
-1.93"
(-49.02mm)
33rd Driest
Driest since:
1955
94th Wettest
Wettest since:
2020
Ties: 1978
May 1979–Apr 1982
36-Month
89.30"
(2,268.22mm)
89.88"
(2,282.95mm)
-0.58"
(-14.73mm)
57th Driest
Driest since:
1955
69th Wettest
Wettest since:
2020
May 1978–Apr 1982
48-Month
121.47"
(3,085.34mm)
119.77"
(3,042.16mm)
1.70"
(43.18mm)
74th Driest
Driest since:
1956
51st Wettest
Wettest since:
2019
Ties: 1980
May 1977–Apr 1982
60-Month
153.48"
(3,898.39mm)
149.63"
(3,800.60mm)
3.85"
(97.79mm)
87th Driest
Driest since:
1957
37th Wettest
Wettest since:
2020

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