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 1984

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  • Record Wettest
PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Wettest/Driest
Since
Record
April 1984
1-Month
2.95"
(74.93mm)
2.52"
(64.01mm)
0.43"
(10.92mm)
105th Driest
Driest since:
1987
24th Wettest
Wettest since:
1957
Mar–Apr 1984
2-Month
5.70"
(144.78mm)
5.03"
(127.76mm)
0.67"
(17.02mm)
104th Driest
Driest since:
1910
25th Wettest
Wettest since:
1973
Feb–Apr 1984
3-Month
7.81"
(198.37mm)
7.16"
(181.86mm)
0.65"
(16.51mm)
98th Driest
Driest since:
1910
31st Wettest
Wettest since:
1983
Jan–Apr 1984
4-Month
9.16"
(232.66mm)
9.48"
(240.79mm)
-0.32"
(-8.13mm)
55th Driest
Driest since:
1910
74th Wettest
Wettest since:
1998
Ties: 1914, 1917
Dec 1983–Apr 1984
5-Month
12.60"
(320.04mm)
11.82"
(300.23mm)
0.78"
(19.81mm)
98th Driest
Driest since:
1931
30th Wettest
Wettest since:
1983
Nov 1983–Apr 1984
6-Month
16.52"
(419.61mm)
14.05"
(356.87mm)
2.47"
(62.74mm)
119th Driest
Driest since:
1977
9th Wettest
Wettest since:
1983
Oct 1983–Apr 1984
7-Month
19.13"
(485.90mm)
16.22"
(411.99mm)
2.91"
(73.91mm)
121st Driest
Driest since:
1981
7th Wettest
Wettest since:
1983
Sep 1983–Apr 1984
8-Month
21.39"
(543.31mm)
18.71"
(475.23mm)
2.68"
(68.08mm)
119th Driest
Driest since:
1918
9th Wettest
Wettest since:
2019
Ties: 1927
Aug 1983–Apr 1984
9-Month
23.76"
(603.50mm)
21.33"
(541.78mm)
2.43"
(61.72mm)
113th Driest
Driest since:
1918
15th Wettest
Wettest since:
2019
Ties: 1958
Jul 1983–Apr 1984
10-Month
25.84"
(656.34mm)
24.12"
(612.65mm)
1.72"
(43.69mm)
102nd Driest
Driest since:
1931
26th Wettest
Wettest since:
2019
Jun 1983–Apr 1984
11-Month
28.79"
(731.27mm)
27.04"
(686.82mm)
1.75"
(44.45mm)
101st Driest
Driest since:
1931
27th Wettest
Wettest since:
2019
Ties: 1920
May 1983–Apr 1984
12-Month
32.26"
(819.40mm)
29.95"
(760.73mm)
2.31"
(58.67mm)
110th Driest
Driest since:
1918
18th Wettest
Wettest since:
2019
Nov 1982–Apr 1984
18-Month
50.67"
(1,287.02mm)
44.02"
(1,118.11mm)
6.65"
(168.91mm)
124th Driest
Driest since:
1931
3rd Wettest
Wettest since:
2020
May 1982–Apr 1984
24-Month
67.68"
(1,719.07mm)
59.92"
(1,521.97mm)
7.76"
(197.10mm)
121st Driest
Driest since:
1955
6th Wettest
Wettest since:
2020
May 1981–Apr 1984
36-Month
100.19"
(2,544.83mm)
89.88"
(2,282.95mm)
10.31"
(261.88mm)
124th Driest
Driest since:
1955
2nd Wettest
Wettest to Date
2020
May 1980–Apr 1984
48-Month
125.67"
(3,192.02mm)
119.77"
(3,042.16mm)
5.90"
(149.86mm)
104th Driest
Driest since:
1956
21st Wettest
Wettest since:
2019
May 1979–Apr 1984
60-Month
156.98"
(3,987.29mm)
149.63"
(3,800.60mm)
7.35"
(186.69mm)
105th Driest
Driest since:
1957
19th Wettest
Wettest since:
2020

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