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 2013

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  • Record Wettest
PeriodValue1901-2000
Mean
AnomalyRank
(1895-2023)
Wettest/Driest
Since
Record
April 2013
1-Month
2.90"
(73.66mm)
2.52"
(64.01mm)
0.38"
(9.65mm)
102nd Driest
Driest since:
1987
28th Wettest
Wettest since:
1957
Mar–Apr 2013
2-Month
4.62"
(117.35mm)
5.03"
(127.76mm)
-0.41"
(-10.41mm)
41st Driest
Driest since:
1910
89th Wettest
Wettest since:
1973
Ties: 1968
Feb–Apr 2013
3-Month
6.64"
(168.66mm)
7.16"
(181.86mm)
-0.52"
(-13.20mm)
36th Driest
Driest since:
1910
94th Wettest
Wettest since:
1983
Ties: 2022
Jan–Apr 2013
4-Month
9.01"
(228.85mm)
9.48"
(240.79mm)
-0.47"
(-11.94mm)
48th Driest
Driest since:
1910
82nd Wettest
Wettest since:
1998
Ties: 1962, 2003
Dec 2012–Apr 2013
5-Month
11.89"
(302.01mm)
11.82"
(300.23mm)
0.07"
(1.78mm)
71st Driest
Driest since:
1931
58th Wettest
Wettest since:
1983
Ties: 1906
Nov 2012–Apr 2013
6-Month
13.21"
(335.53mm)
14.05"
(356.87mm)
-0.84"
(-21.34mm)
35th Driest
Driest since:
1977
94th Wettest
Wettest since:
1983
Oct 2012–Apr 2013
7-Month
15.44"
(392.18mm)
16.22"
(411.99mm)
-0.78"
(-19.81mm)
38th Driest
Driest since:
1981
91st Wettest
Wettest since:
1983
Sep 2012–Apr 2013
8-Month
17.78"
(451.61mm)
18.71"
(475.23mm)
-0.93"
(-23.62mm)
38th Driest
Driest since:
1918
91st Wettest
Wettest since:
2019
Aug 2012–Apr 2013
9-Month
20.25"
(514.35mm)
21.33"
(541.78mm)
-1.08"
(-27.43mm)
35th Driest
Driest since:
1918
94th Wettest
Wettest since:
2019
Ties: 1909
Jul 2012–Apr 2013
10-Month
22.76"
(578.10mm)
24.12"
(612.65mm)
-1.36"
(-34.55mm)
33rd Driest
Driest since:
1931
96th Wettest
Wettest since:
2019
Jun 2012–Apr 2013
11-Month
25.00"
(635.00mm)
27.04"
(686.82mm)
-2.04"
(-51.82mm)
21st Driest
Driest since:
1931
108th Wettest
Wettest since:
2019
May 2012–Apr 2013
12-Month
27.50"
(698.50mm)
29.95"
(760.73mm)
-2.45"
(-62.23mm)
18th Driest
Driest since:
1918
111th Wettest
Wettest since:
2019
Nov 2011–Apr 2013
18-Month
41.27"
(1,048.26mm)
44.02"
(1,118.11mm)
-2.75"
(-69.85mm)
21st Driest
Driest since:
1931
107th Wettest
Wettest since:
2020
May 2011–Apr 2013
24-Month
56.68"
(1,439.67mm)
59.92"
(1,521.97mm)
-3.24"
(-82.30mm)
23rd Driest
Driest since:
1955
105th Wettest
Wettest since:
2020
May 2010–Apr 2013
36-Month
88.70"
(2,252.98mm)
89.88"
(2,282.95mm)
-1.18"
(-29.97mm)
46th Driest
Driest since:
1955
81st Wettest
Wettest since:
2020
May 2009–Apr 2013
48-Month
121.63"
(3,089.40mm)
119.77"
(3,042.16mm)
1.86"
(47.24mm)
76th Driest
Driest since:
1956
50th Wettest
Wettest since:
2019
May 2008–Apr 2013
60-Month
151.81"
(3,855.97mm)
149.63"
(3,800.60mm)
2.18"
(55.37mm)
70th Driest
Driest since:
1957
55th Wettest
Wettest since:
2020

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