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 1965

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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
April 1965
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: 1982, 2020
Mar–Apr 1965
2-Month
4.68"
(118.87mm)
5.03"
(127.76mm)
-0.35"
(-8.89mm)
45th Driest
Driest since:
1910
84th Wettest
Wettest since:
1973
Ties: 2010
Feb–Apr 1965
3-Month
6.84"
(173.74mm)
7.16"
(181.86mm)
-0.32"
(-8.12mm)
51st Driest
Driest since:
1910
78th Wettest
Wettest since:
1983
Jan–Apr 1965
4-Month
9.18"
(233.17mm)
9.48"
(240.79mm)
-0.30"
(-7.62mm)
58th Driest
Driest since:
1910
71st Wettest
Wettest since:
1998
Ties: 1970
Dec 1964–Apr 1965
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: 1982
Nov 1964–Apr 1965
6-Month
14.89"
(378.21mm)
14.05"
(356.87mm)
0.84"
(21.34mm)
98th Driest
Driest since:
1977
30th Wettest
Wettest since:
1983
Oct 1964–Apr 1965
7-Month
16.25"
(412.75mm)
16.22"
(411.99mm)
0.03"
(0.76mm)
67th Driest
Driest since:
1981
61st Wettest
Wettest since:
1983
Ties: 1906
Sep 1964–Apr 1965
8-Month
18.79"
(477.27mm)
18.71"
(475.23mm)
0.08"
(2.04mm)
68th Driest
Driest since:
1918
60th Wettest
Wettest since:
2019
Aug 1964–Apr 1965
9-Month
21.66"
(550.16mm)
21.33"
(541.78mm)
0.33"
(8.38mm)
77th Driest
Driest since:
1918
51st Wettest
Wettest since:
2019
Ties: 1948
Jul 1964–Apr 1965
10-Month
24.27"
(616.46mm)
24.12"
(612.65mm)
0.15"
(3.81mm)
72nd Driest
Driest since:
1931
56th Wettest
Wettest since:
2019
Ties: 1947, 1996
Jun 1964–Apr 1965
11-Month
27.08"
(687.83mm)
27.04"
(686.82mm)
0.04"
(1.01mm)
58th Driest
Driest since:
1931
70th Wettest
Wettest since:
2019
May 1964–Apr 1965
12-Month
29.33"
(744.98mm)
29.95"
(760.73mm)
-0.62"
(-15.75mm)
45th Driest
Driest since:
1918
83rd Wettest
Wettest since:
2019
Nov 1963–Apr 1965
18-Month
43.58"
(1,106.93mm)
44.02"
(1,118.11mm)
-0.44"
(-11.18mm)
51st Driest
Driest since:
1931
76th Wettest
Wettest since:
2020
May 1963–Apr 1965
24-Month
57.07"
(1,449.58mm)
59.92"
(1,521.97mm)
-2.85"
(-72.39mm)
25th Driest
Driest since:
1955
102nd Wettest
Wettest since:
2020
Ties: 1902
May 1962–Apr 1965
36-Month
84.73"
(2,152.14mm)
89.88"
(2,282.95mm)
-5.15"
(-130.81mm)
12th Driest
Driest since:
1955
114th Wettest
Wettest since:
2020
May 1961–Apr 1965
48-Month
115.27"
(2,927.86mm)
119.77"
(3,042.16mm)
-4.50"
(-114.30mm)
19th Driest
Driest since:
1956
106th Wettest
Wettest since:
2019
May 1960–Apr 1965
60-Month
144.62"
(3,673.35mm)
149.63"
(3,800.60mm)
-5.01"
(-127.25mm)
20th Driest
Driest since:
1957
104th Wettest
Wettest since:
2020

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