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 1945

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  • Record Wettest
PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Wettest/Driest
Since
Record
April 1945
1-Month
3.05"
(77.47mm)
2.52"
(64.01mm)
0.53"
(13.46mm)
114th Driest
Driest since:
1987
15th Wettest
Wettest since:
1957
Ties: 1927, 1958
Mar–Apr 1945
2-Month
6.17"
(156.72mm)
5.03"
(127.76mm)
1.14"
(28.96mm)
121st Driest
Driest since:
1910
8th Wettest
Wettest since:
1973
Feb–Apr 1945
3-Month
8.92"
(226.57mm)
7.16"
(181.86mm)
1.76"
(44.71mm)
123rd Driest
Driest since:
1910
6th Wettest
Wettest since:
1983
Jan–Apr 1945
4-Month
10.72"
(272.29mm)
9.48"
(240.79mm)
1.24"
(31.50mm)
117th Driest
Driest since:
1910
12th Wettest
Wettest since:
1998
Dec 1944–Apr 1945
5-Month
12.78"
(324.61mm)
11.82"
(300.23mm)
0.96"
(24.38mm)
104th Driest
Driest since:
1931
24th Wettest
Wettest since:
1983
Nov 1944–Apr 1945
6-Month
15.46"
(392.68mm)
14.05"
(356.87mm)
1.41"
(35.81mm)
105th Driest
Driest since:
1977
23rd Wettest
Wettest since:
1983
Oct 1944–Apr 1945
7-Month
16.80"
(426.72mm)
16.22"
(411.99mm)
0.58"
(14.73mm)
89th Driest
Driest since:
1981
39th Wettest
Wettest since:
1983
Sep 1944–Apr 1945
8-Month
19.19"
(487.43mm)
18.71"
(475.23mm)
0.48"
(12.20mm)
80th Driest
Driest since:
1918
48th Wettest
Wettest since:
2019
Aug 1944–Apr 1945
9-Month
22.15"
(562.61mm)
21.33"
(541.78mm)
0.82"
(20.83mm)
87th Driest
Driest since:
1918
41st Wettest
Wettest since:
2019
Jul 1944–Apr 1945
10-Month
24.46"
(621.28mm)
24.12"
(612.65mm)
0.34"
(8.63mm)
74th Driest
Driest since:
1931
54th Wettest
Wettest since:
2019
Jun 1944–Apr 1945
11-Month
27.47"
(697.74mm)
27.04"
(686.82mm)
0.43"
(10.92mm)
74th Driest
Driest since:
1931
54th Wettest
Wettest since:
2019
May 1944–Apr 1945
12-Month
30.47"
(773.94mm)
29.95"
(760.73mm)
0.52"
(13.21mm)
72nd Driest
Driest since:
1918
56th Wettest
Wettest since:
2019
Nov 1943–Apr 1945
18-Month
44.52"
(1,130.81mm)
44.02"
(1,118.11mm)
0.50"
(12.70mm)
70th Driest
Driest since:
1931
57th Wettest
Wettest since:
2020
May 1943–Apr 1945
24-Month
59.66"
(1,515.36mm)
59.92"
(1,521.97mm)
-0.26"
(-6.61mm)
58th Driest
Driest since:
1955
69th Wettest
Wettest since:
2020
May 1942–Apr 1945
36-Month
90.60"
(2,301.24mm)
89.88"
(2,282.95mm)
0.72"
(18.29mm)
71st Driest
Driest since:
1955
55th Wettest
Wettest since:
2020
May 1941–Apr 1945
48-Month
123.34"
(3,132.84mm)
119.77"
(3,042.16mm)
3.57"
(90.68mm)
93rd Driest
Driest since:
1956
32nd Wettest
Wettest since:
2019
May 1940–Apr 1945
60-Month
152.48"
(3,872.99mm)
149.63"
(3,800.60mm)
2.85"
(72.39mm)
77th Driest
Driest since:
1957
47th Wettest
Wettest since:
2020

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