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 2022

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 2022
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: 2011
Dec 2021–Jan 2022
2-Month
4.05"
(102.87mm)
4.66"
(118.36mm)
-0.61"
(-15.49mm)
27th Driest
Driest since:
1981
101st Wettest
Wettest since:
1932
Ties: 1902
Nov 2021–Jan 2022
3-Month
5.35"
(135.89mm)
6.89"
(175.01mm)
-1.54"
(-39.12mm)
12th Driest
Driest since:
1977
116th Wettest
Wettest since:
2016
Oct 2021–Jan 2022
4-Month
8.50"
(215.90mm)
9.06"
(230.12mm)
-0.56"
(-14.22mm)
41st Driest
Driest since:
1981
87th Wettest
Wettest since:
2016
Ties: 1900
Sep 2021–Jan 2022
5-Month
10.89"
(276.61mm)
11.55"
(293.37mm)
-0.66"
(-16.76mm)
41st Driest
Driest since:
1940
87th Wettest
Wettest since:
2019
Aug 2021–Jan 2022
6-Month
14.03"
(356.36mm)
14.17"
(359.92mm)
-0.14"
(-3.56mm)
56th Driest
Driest since:
1940
72nd Wettest
Wettest since:
2019
Jul 2021–Jan 2022
7-Month
17.44"
(442.98mm)
16.96"
(430.78mm)
0.48"
(12.20mm)
80th Driest
Driest since:
1940
48th Wettest
Wettest since:
2019
Jun 2021–Jan 2022
8-Month
20.41"
(518.41mm)
19.88"
(504.95mm)
0.53"
(13.46mm)
79th Driest
Driest since:
1981
49th Wettest
Wettest since:
2019
May 2021–Jan 2022
9-Month
23.39"
(594.11mm)
22.79"
(578.87mm)
0.60"
(15.24mm)
72nd Driest
Driest since:
1918
56th Wettest
Wettest since:
2016
Apr 2021–Jan 2022
10-Month
25.45"
(646.43mm)
25.32"
(643.13mm)
0.13"
(3.30mm)
56th Driest
Driest since:
1940
72nd Wettest
Wettest since:
2016
Mar 2021–Jan 2022
11-Month
27.96"
(710.18mm)
27.83"
(706.88mm)
0.13"
(3.30mm)
62nd Driest
Driest since:
1957
66th Wettest
Wettest since:
1974
Feb 2021–Jan 2022
12-Month
29.98"
(761.49mm)
29.96"
(760.98mm)
0.02"
(0.51mm)
57th Driest
Driest since:
1931
71st Wettest
Wettest since:
1974
Aug 2020–Jan 2022
18-Month
43.10"
(1,094.74mm)
44.14"
(1,121.16mm)
-1.04"
(-26.42mm)
38th Driest
Driest since:
1955
89th Wettest
Wettest since:
2020
Feb 2020–Jan 2022
24-Month
59.69"
(1,516.13mm)
59.93"
(1,522.22mm)
-0.24"
(-6.09mm)
57th Driest
Driest since:
1918
70th Wettest
Wettest since:
2020
Feb 2019–Jan 2022
36-Month
94.71"
(2,405.63mm)
89.86"
(2,282.44mm)
4.85"
(123.19mm)
101st Driest
Driest since:
1957
25th Wettest
Wettest since:
2020
Feb 2018–Jan 2022
48-Month
130.07"
(3,303.78mm)
119.76"
(3,041.90mm)
10.31"
(261.88mm)
119th Driest
Driest since:
1957
6th Wettest
Wettest since:
2020
Feb 2017–Jan 2022
60-Month
160.99"
(4,089.15mm)
149.63"
(3,800.60mm)
11.36"
(288.55mm)
117th Driest
Driest since:
1957
7th Wettest
Wettest since:
2020

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