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

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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 		4.04"
(102.62mm)		 4.66"
(118.36mm)		 -0.62"
(-15.74mm)		 27th Driest
Driest since:
 1981
101st Wettest
Wettest since:
 1932
Nov 2021–Jan 2022
3-Month 		5.34"
(135.64mm)		 6.89"
(175.01mm)		 -1.55"
(-39.37mm)		 12th Driest
Driest since:
 1977
116th Wettest
Wettest since:
 2016
Oct 2021–Jan 2022
4-Month 		8.49"
(215.65mm)		 9.06"
(230.12mm)		 -0.57"
(-14.47mm)		 41st Driest
Driest since:
 1981
87th Wettest
Wettest since:
 2016
Sep 2021–Jan 2022
5-Month 		10.88"
(276.35mm)		 11.55"
(293.37mm)		 -0.67"
(-17.02mm)		 41st Driest
Driest since:
 1940
87th Wettest
Wettest since:
 2019
Aug 2021–Jan 2022
6-Month 		14.01"
(355.85mm)		 14.17"
(359.92mm)		 -0.16"
(-4.07mm)		 56th Driest
Driest since:
 1940
72nd Wettest
Wettest since:
 2019
Jul 2021–Jan 2022
7-Month 		17.41"
(442.21mm)		 16.96"
(430.78mm)		 0.45"
(11.43mm)		 79th Driest
Driest since:
 1940
49th Wettest
Wettest since:
 2019
Jun 2021–Jan 2022
8-Month 		20.38"
(517.65mm)		 19.88"
(504.95mm)		 0.50"
(12.70mm)		 77th Driest
Driest since:
 1981
51st Wettest
Wettest since:
 2019
May 2021–Jan 2022
9-Month 		23.37"
(593.60mm)		 22.79"
(578.87mm)		 0.58"
(14.73mm)		 72nd Driest
Driest since:
 1918
56th Wettest
Wettest since:
 2016
Apr 2021–Jan 2022
10-Month 		25.43"
(645.92mm)		 25.32"
(643.13mm)		 0.11"
(2.79mm)		 56th Driest
Driest since:
 1940
72nd Wettest
Wettest since:
 2016
Mar 2021–Jan 2022
11-Month 		27.94"
(709.68mm)		 27.83"
(706.88mm)		 0.11"
(2.80mm)		 62nd Driest
Driest since:
 1957
66th Wettest
Wettest since:
 1974
Feb 2021–Jan 2022
12-Month 		29.96"
(760.98mm)		 29.96"
(760.98mm)		 0.00"
(0.00mm)		 56th Driest
Driest since:
 1931
72nd Wettest
Wettest since:
 1974
Ties: 1936
Aug 2020–Jan 2022
18-Month 		43.08"
(1,094.23mm)		 44.14"
(1,121.16mm)		 -1.06"
(-26.93mm)		 38th Driest
Driest since:
 1955
89th Wettest
Wettest since:
 2020
Feb 2020–Jan 2022
24-Month 		59.67"
(1,515.62mm)		 59.93"
(1,522.22mm)		 -0.26"
(-6.60mm)		 57th Driest
Driest since:
 1918
70th Wettest
Wettest since:
 2020
Feb 2019–Jan 2022
36-Month 		94.69"
(2,405.13mm)		 89.86"
(2,282.44mm)		 4.83"
(122.69mm)		 101st Driest
Driest since:
 1957
25th Wettest
Wettest since:
 2020
Feb 2018–Jan 2022
48-Month 		130.05"
(3,303.27mm)		 119.76"
(3,041.90mm)		 10.29"
(261.37mm)		 119th Driest
Driest since:
 1957
6th Wettest
Wettest since:
 2020
Feb 2017–Jan 2022
60-Month 		160.97"
(4,088.64mm)		 149.63"
(3,800.60mm)		 11.34"
(288.04mm)		 117th Driest
Driest since:
 1957
7th Wettest
Wettest since:
 2020

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