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, January 1899

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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
January 1899
1-Month
2.61"
(66.29mm)
2.31"
(58.67mm)
0.30"
(7.62mm)
99th Driest
Driest since:
1981
30th Wettest
Wettest since:
1916
Ties: 1975, 2006
Dec 1898–Jan 1899
2-Month
4.33"
(109.98mm)
4.66"
(118.36mm)
-0.33"
(-8.38mm)
44th Driest
Driest since:
1981
84th Wettest
Wettest since:
1932
Ties: 2003
Nov 1898–Jan 1899
3-Month
6.59"
(167.39mm)
6.89"
(175.01mm)
-0.30"
(-7.62mm)
50th Driest
Driest since:
1977
78th Wettest
Wettest since:
2016
Oct 1898–Jan 1899
4-Month
9.09"
(230.89mm)
9.06"
(230.12mm)
0.03"
(0.77mm)
60th Driest
Driest since:
1981
68th Wettest
Wettest since:
2016
Sep 1898–Jan 1899
5-Month
11.42"
(290.07mm)
11.55"
(293.37mm)
-0.13"
(-3.30mm)
54th Driest
Driest since:
1940
74th Wettest
Wettest since:
2019
Aug 1898–Jan 1899
6-Month
14.48"
(367.79mm)
14.17"
(359.92mm)
0.31"
(7.87mm)
71st Driest
Driest since:
1940
57th Wettest
Wettest to Date
2019
Jul 1898–Jan 1899
7-Month
17.36"
(440.94mm)
16.96"
(430.78mm)
0.40"
(10.16mm)
77th Driest
Driest since:
1940
51st Wettest
Wettest to Date
2019
Ties: 1950
Jun 1898–Jan 1899
8-Month
20.43"
(518.92mm)
19.88"
(504.95mm)
0.55"
(13.97mm)
80th Driest
Driest since:
1981
48th Wettest
Wettest to Date
2019
May 1898–Jan 1899
9-Month
23.66"
(600.96mm)
22.79"
(578.87mm)
0.87"
(22.09mm)
84th Driest
Driest since:
1918
44th Wettest
Wettest to Date
2016
Ties: 1985
Apr 1898–Jan 1899
10-Month
25.68"
(652.27mm)
25.32"
(643.13mm)
0.36"
(9.14mm)
68th Driest
Driest since:
1940
60th Wettest
Wettest to Date
2016
Mar 1898–Jan 1899
11-Month
28.10"
(713.74mm)
27.83"
(706.88mm)
0.27"
(6.86mm)
66th Driest
Driest since:
1957
62nd Wettest
Wettest to Date
1974
Ties: 1950
Feb 1898–Jan 1899
12-Month
29.75"
(755.65mm)
29.96"
(760.98mm)
-0.21"
(-5.33mm)
51st Driest
Driest since:
1931
77th Wettest
Wettest since:
1974
Aug 1897–Jan 1899
18-Month
42.73"
(1,085.34mm)
44.14"
(1,121.16mm)
-1.41"
(-35.82mm)
35th Driest
Driest since:
1955
92nd Wettest
Wettest since:
2020
Feb 1897–Jan 1899
24-Month
59.49"
(1,511.05mm)
59.93"
(1,522.22mm)
-0.44"
(-11.17mm)
54th Driest
Driest since:
1918
73rd Wettest
Wettest since:
2020
Feb 1896–Jan 1899
36-Month
89.25"
(2,266.95mm)
89.86"
(2,282.44mm)
-0.61"
(-15.49mm)
59th Driest
Driest since:
1957
67th Wettest
Wettest to Date
2020
Feb 1895–Jan 1899
48-Month
115.88"
(2,943.35mm)
119.76"
(3,041.90mm)
-3.88"
(-98.55mm)
27th Driest
Driest since:
1957
98th Wettest
Wettest to Date
2020

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