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 1911

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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
April 1911
1-Month
2.85"
(72.39mm)
2.52"
(64.01mm)
0.33"
(8.38mm)
98th Driest
Driest since:
1987
31st Wettest
Wettest since:
1957
Mar–Apr 1911
2-Month
4.56"
(115.82mm)
5.03"
(127.76mm)
-0.47"
(-11.94mm)
32nd Driest
Driest since:
1910
97th Wettest
Wettest since:
1973
Ties: 1949, 1954
Feb–Apr 1911
3-Month
6.69"
(169.93mm)
7.16"
(181.86mm)
-0.47"
(-11.93mm)
40th Driest
Driest since:
1910
89th Wettest
Wettest since:
1983
Ties: 1955, 1996, 2010
Jan–Apr 1911
4-Month
9.13"
(231.90mm)
9.47"
(240.54mm)
-0.34"
(-8.64mm)
54th Driest
Driest since:
1910
75th Wettest
Wettest since:
1998
Dec 1910–Apr 1911
5-Month
10.82"
(274.83mm)
11.82"
(300.23mm)
-1.00"
(-25.40mm)
28th Driest
Driest since:
1931
100th Wettest
Wettest since:
1983
Nov 1910–Apr 1911
6-Month
12.58"
(319.53mm)
14.05"
(356.87mm)
-1.47"
(-37.34mm)
13th Driest
Driest since:
1977
115th Wettest
Wettest since:
1983
Oct 1910–Apr 1911
7-Month
14.62"
(371.35mm)
16.22"
(411.99mm)
-1.60"
(-40.64mm)
18th Driest
Driest since:
1981
110th Wettest
Wettest since:
1983
Sep 1910–Apr 1911
8-Month
16.79"
(426.47mm)
18.71"
(475.23mm)
-1.92"
(-48.76mm)
16th Driest
Driest since:
1918
112th Wettest
Wettest since:
2019
Aug 1910–Apr 1911
9-Month
19.04"
(483.62mm)
21.33"
(541.78mm)
-2.29"
(-58.16mm)
12th Driest
Driest since:
1918
116th Wettest
Wettest since:
2019
Jul 1910–Apr 1911
10-Month
21.63"
(549.40mm)
24.12"
(612.65mm)
-2.49"
(-63.25mm)
11th Driest
Driest since:
1931
117th Wettest
Wettest since:
2019
Jun 1910–Apr 1911
11-Month
24.11"
(612.39mm)
27.04"
(686.82mm)
-2.93"
(-74.43mm)
9th Driest
Driest since:
1931
119th Wettest
Wettest since:
2019
May 1910–Apr 1911
12-Month
26.70"
(678.18mm)
29.95"
(760.73mm)
-3.25"
(-82.55mm)
9th Driest
Driest since:
1918
119th Wettest
Wettest since:
2019
Nov 1909–Apr 1911
18-Month
39.59"
(1,005.59mm)
44.02"
(1,118.11mm)
-4.43"
(-112.52mm)
8th Driest
Driest since:
1931
119th Wettest
Wettest since:
2020
May 1909–Apr 1911
24-Month
55.12"
(1,400.05mm)
59.92"
(1,521.97mm)
-4.80"
(-121.92mm)
12th Driest
Driest since:
1955
115th Wettest
Wettest since:
2020
May 1908–Apr 1911
36-Month
85.53"
(2,172.46mm)
89.88"
(2,282.95mm)
-4.35"
(-110.49mm)
17th Driest
Driest since:
1955
109th Wettest
Wettest since:
2020
May 1907–Apr 1911
48-Month
116.63"
(2,962.40mm)
119.77"
(3,042.16mm)
-3.14"
(-79.76mm)
32nd Driest
Driest since:
1956
93rd Wettest
Wettest since:
2019
May 1906–Apr 1911
60-Month
149.22"
(3,790.19mm)
149.63"
(3,800.60mm)
-0.41"
(-10.41mm)
59th Driest
Driest since:
1957
65th Wettest
Wettest since:
2020

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