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 2008

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
April 2008
1-Month
2.54"
(64.52mm)
2.52"
(64.01mm)
0.02"
(0.51mm)
71st Driest
Driest since:
1987
58th Wettest
Wettest since:
1957
Ties: 1933, 1948, 1978, 2006
Mar–Apr 2008
2-Month
5.06"
(128.52mm)
5.03"
(127.76mm)
0.03"
(0.76mm)
73rd Driest
Driest since:
1910
56th Wettest
Wettest since:
1973
Ties: 1999
Feb–Apr 2008
3-Month
7.53"
(191.26mm)
7.16"
(181.86mm)
0.37"
(9.40mm)
88th Driest
Driest since:
1910
41st Wettest
Wettest since:
1983
Jan–Apr 2008
4-Month
9.74"
(247.40mm)
9.48"
(240.79mm)
0.26"
(6.61mm)
82nd Driest
Driest since:
1910
47th Wettest
Wettest since:
1998
Dec 2007–Apr 2008
5-Month
12.71"
(322.83mm)
11.82"
(300.23mm)
0.89"
(22.60mm)
101st Driest
Driest since:
1931
27th Wettest
Wettest since:
1983
Ties: 1949
Nov 2007–Apr 2008
6-Month
14.11"
(358.39mm)
14.05"
(356.87mm)
0.06"
(1.52mm)
74th Driest
Driest since:
1977
54th Wettest
Wettest since:
1983
Oct 2007–Apr 2008
7-Month
16.83"
(427.48mm)
16.22"
(411.99mm)
0.61"
(15.49mm)
90th Driest
Driest since:
1981
38th Wettest
Wettest since:
1983
Sep 2007–Apr 2008
8-Month
19.00"
(482.60mm)
18.71"
(475.23mm)
0.29"
(7.37mm)
75th Driest
Driest since:
1918
53rd Wettest
Wettest since:
2019
Aug 2007–Apr 2008
9-Month
21.60"
(548.64mm)
21.33"
(541.78mm)
0.27"
(6.86mm)
72nd Driest
Driest since:
1918
56th Wettest
Wettest since:
2019
Jul 2007–Apr 2008
10-Month
24.48"
(621.79mm)
24.12"
(612.65mm)
0.36"
(9.14mm)
75th Driest
Driest since:
1931
53rd Wettest
Wettest since:
2019
Jun 2007–Apr 2008
11-Month
27.39"
(695.71mm)
27.04"
(686.82mm)
0.35"
(8.89mm)
72nd Driest
Driest since:
1931
56th Wettest
Wettest since:
2019
Ties: 1951
May 2007–Apr 2008
12-Month
30.14"
(765.56mm)
29.95"
(760.73mm)
0.19"
(4.83mm)
60th Driest
Driest since:
1918
68th Wettest
Wettest since:
2019
Nov 2006–Apr 2008
18-Month
43.95"
(1,116.33mm)
44.02"
(1,118.11mm)
-0.07"
(-1.78mm)
58th Driest
Driest since:
1931
69th Wettest
Wettest since:
2020
May 2006–Apr 2008
24-Month
59.76"
(1,517.90mm)
59.92"
(1,521.97mm)
-0.16"
(-4.07mm)
61st Driest
Driest since:
1955
66th Wettest
Wettest since:
2020
May 2005–Apr 2008
36-Month
89.15"
(2,264.41mm)
89.88"
(2,282.95mm)
-0.73"
(-18.54mm)
54th Driest
Driest since:
1955
72nd Wettest
Wettest since:
2020
May 2004–Apr 2008
48-Month
123.14"
(3,127.76mm)
119.77"
(3,042.16mm)
3.37"
(85.60mm)
91st Driest
Driest since:
1956
34th Wettest
Wettest since:
2019
May 2003–Apr 2008
60-Month
153.57"
(3,900.68mm)
149.63"
(3,800.60mm)
3.94"
(100.08mm)
89th Driest
Driest since:
1957
35th Wettest
Wettest since:
2020

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