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 2011

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
January 2011
1-Month
1.65"
(41.91mm)
2.31"
(58.67mm)
-0.66"
(-16.76mm)
15th Driest
Driest since:
1981
114th Wettest
Wettest since:
1916
Ties: 2022
Dec 2010–Jan 2011
2-Month
4.10"
(104.14mm)
4.66"
(118.36mm)
-0.56"
(-14.22mm)
30th Driest
Driest since:
1981
98th Wettest
Wettest since:
1932
Ties: 1900, 1929
Nov 2010–Jan 2011
3-Month
6.32"
(160.53mm)
6.89"
(175.01mm)
-0.57"
(-14.48mm)
36th Driest
Driest since:
1977
92nd Wettest
Wettest since:
2016
Ties: 1994
Oct 2010–Jan 2011
4-Month
8.29"
(210.57mm)
9.06"
(230.12mm)
-0.77"
(-19.55mm)
32nd Driest
Driest since:
1981
96th Wettest
Wettest since:
2016
Sep 2010–Jan 2011
5-Month
11.07"
(281.18mm)
11.55"
(293.37mm)
-0.48"
(-12.19mm)
43rd Driest
Driest since:
1940
85th Wettest
Wettest since:
2019
Aug 2010–Jan 2011
6-Month
13.58"
(344.93mm)
14.17"
(359.92mm)
-0.59"
(-14.99mm)
40th Driest
Driest since:
1940
88th Wettest
Wettest since:
2019
Ties: 1948
Jul 2010–Jan 2011
7-Month
16.90"
(429.26mm)
16.96"
(430.78mm)
-0.06"
(-1.52mm)
52nd Driest
Driest since:
1940
76th Wettest
Wettest since:
2019
Jun 2010–Jan 2011
8-Month
20.39"
(517.91mm)
19.88"
(504.95mm)
0.51"
(12.96mm)
79th Driest
Driest since:
1981
49th Wettest
Wettest since:
2019
Ties: 1980
May 2010–Jan 2011
9-Month
23.71"
(602.23mm)
22.79"
(578.87mm)
0.92"
(23.36mm)
87th Driest
Driest since:
1918
41st Wettest
Wettest since:
2016
Ties: 1994
Apr 2010–Jan 2011
10-Month
26.09"
(662.69mm)
25.32"
(643.13mm)
0.77"
(19.56mm)
78th Driest
Driest since:
1940
50th Wettest
Wettest since:
2016
Mar 2010–Jan 2011
11-Month
28.39"
(721.11mm)
27.83"
(706.88mm)
0.56"
(14.23mm)
76th Driest
Driest since:
1957
52nd Wettest
Wettest since:
1974
Feb 2010–Jan 2011
12-Month
30.40"
(772.16mm)
29.96"
(760.98mm)
0.44"
(11.18mm)
70th Driest
Driest since:
1931
58th Wettest
Wettest since:
1974
Aug 2009–Jan 2011
18-Month
47.25"
(1,200.15mm)
44.14"
(1,121.16mm)
3.11"
(78.99mm)
102nd Driest
Driest since:
1955
25th Wettest
Wettest since:
2020
Feb 2009–Jan 2011
24-Month
63.72"
(1,618.49mm)
59.93"
(1,522.22mm)
3.79"
(96.27mm)
101st Driest
Driest since:
1918
26th Wettest
Wettest since:
2020
Feb 2008–Jan 2011
36-Month
94.35"
(2,396.49mm)
89.86"
(2,282.44mm)
4.49"
(114.05mm)
99th Driest
Driest since:
1957
27th Wettest
Wettest since:
2020
Feb 2007–Jan 2011
48-Month
123.52"
(3,137.41mm)
119.76"
(3,041.90mm)
3.76"
(95.51mm)
91st Driest
Driest since:
1957
34th Wettest
Wettest since:
2020
Feb 2006–Jan 2011
60-Month
152.95"
(3,884.93mm)
149.63"
(3,800.60mm)
3.32"
(84.33mm)
83rd Driest
Driest since:
1957
41st Wettest
Wettest since:
2020

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