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 1946

View Period (Months):
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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 1946
1-Month
1.66"
(42.16mm)
2.52"
(64.01mm)
-0.86"
(-21.85mm)
2nd Driest
Driest since:
1987
127th Wettest
Wettest since:
1957
Mar–Apr 1946
2-Month
4.33"
(109.98mm)
5.03"
(127.76mm)
-0.70"
(-17.78mm)
18th Driest
Driest since:
1910
111th Wettest
Wettest since:
1973
Feb–Apr 1946
3-Month
6.39"
(162.31mm)
7.16"
(181.86mm)
-0.77"
(-19.55mm)
20th Driest
Driest since:
1910
109th Wettest
Wettest since:
1983
Ties: 1918
Jan–Apr 1946
4-Month
8.93"
(226.82mm)
9.47"
(240.54mm)
-0.54"
(-13.72mm)
42nd Driest
Driest since:
1910
87th Wettest
Wettest since:
1998
Ties: 2004
Dec 1945–Apr 1946
5-Month
11.63"
(295.40mm)
11.82"
(300.23mm)
-0.19"
(-4.83mm)
58th Driest
Driest since:
1931
70th Wettest
Wettest since:
1983
Nov 1945–Apr 1946
6-Month
13.87"
(352.30mm)
14.05"
(356.87mm)
-0.18"
(-4.57mm)
68th Driest
Driest since:
1977
60th Wettest
Wettest since:
1983
Oct 1945–Apr 1946
7-Month
15.87"
(403.10mm)
16.22"
(411.99mm)
-0.35"
(-8.89mm)
54th Driest
Driest since:
1981
74th Wettest
Wettest since:
1983
Ties: 1915
Sep 1945–Apr 1946
8-Month
19.31"
(490.47mm)
18.71"
(475.23mm)
0.60"
(15.24mm)
84th Driest
Driest since:
1918
44th Wettest
Wettest since:
2019
Ties: 1972
Aug 1945–Apr 1946
9-Month
21.91"
(556.51mm)
21.33"
(541.78mm)
0.58"
(14.73mm)
83rd Driest
Driest since:
1918
45th Wettest
Wettest since:
2019
Ties: 1937
Jul 1945–Apr 1946
10-Month
24.96"
(633.98mm)
24.12"
(612.65mm)
0.84"
(21.33mm)
88th Driest
Driest since:
1931
40th Wettest
Wettest since:
2019
Jun 1945–Apr 1946
11-Month
28.37"
(720.60mm)
27.04"
(686.82mm)
1.33"
(33.78mm)
94th Driest
Driest since:
1931
34th Wettest
Wettest since:
2019
May 1945–Apr 1946
12-Month
31.24"
(793.50mm)
29.95"
(760.73mm)
1.29"
(32.77mm)
92nd Driest
Driest since:
1918
36th Wettest
Wettest since:
2019
Nov 1944–Apr 1946
18-Month
46.70"
(1,186.18mm)
44.02"
(1,118.11mm)
2.68"
(68.07mm)
105th Driest
Driest since:
1931
22nd Wettest
Wettest since:
2020
May 1944–Apr 1946
24-Month
61.71"
(1,567.43mm)
59.92"
(1,521.97mm)
1.79"
(45.46mm)
85th Driest
Driest since:
1955
42nd Wettest
Wettest since:
2020
May 1943–Apr 1946
36-Month
90.90"
(2,308.86mm)
89.88"
(2,282.95mm)
1.02"
(25.91mm)
75th Driest
Driest since:
1955
51st Wettest
Wettest since:
2020
May 1942–Apr 1946
48-Month
121.84"
(3,094.74mm)
119.77"
(3,042.16mm)
2.07"
(52.58mm)
79th Driest
Driest since:
1956
46th Wettest
Wettest since:
2019
May 1941–Apr 1946
60-Month
154.58"
(3,926.33mm)
149.63"
(3,800.60mm)
4.95"
(125.73mm)
97th Driest
Driest since:
1957
27th Wettest
Wettest since:
2020

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