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 1927

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Wettest/Driest
Since		Record
January 1927
1-Month		1.77"
(44.96mm)		2.31"
(58.67mm)		-0.54"
(-13.71mm)		20th Driest
Driest since:
1981
110th Wettest
Wettest since:
1916
Dec 1926–Jan 1927
2-Month		4.44"
(112.78mm)		4.66"
(118.36mm)		-0.22"
(-5.58mm)		54th Driest
Driest since:
1981
75th Wettest
Wettest since:
1932
Ties: 2009
Nov 1926–Jan 1927
3-Month		7.31"
(185.67mm)		6.89"
(175.01mm)		0.42"
(10.66mm)		90th Driest
Driest since:
1977
39th Wettest
Wettest since:
2016
Oct 1926–Jan 1927
4-Month		9.80"
(248.92mm)		9.06"
(230.12mm)		0.74"
(18.80mm)		92nd Driest
Driest since:
1981
37th Wettest
Wettest since:
2016
Sep 1926–Jan 1927
5-Month		13.03"
(330.96mm)		11.55"
(293.37mm)		1.48"
(37.59mm)		108th Driest
Driest since:
1940
21st Wettest
Wettest since:
2019
Ties: 1969
Aug 1926–Jan 1927
6-Month		16.25"
(412.75mm)		14.17"
(359.92mm)		2.08"
(52.83mm)		116th Driest
Driest since:
1940
13th Wettest
Wettest since:
2019
Jul 1926–Jan 1927
7-Month		19.11"
(485.39mm)		16.96"
(430.78mm)		2.15"
(54.61mm)		116th Driest
Driest since:
1940
13th Wettest
Wettest since:
2019
Ties: 1983
Jun 1926–Jan 1927
8-Month		21.60"
(548.64mm)		19.88"
(504.95mm)		1.72"
(43.69mm)		105th Driest
Driest since:
1981
24th Wettest
Wettest since:
2019
May 1926–Jan 1927
9-Month		23.81"
(604.77mm)		22.79"
(578.87mm)		1.02"
(25.90mm)		92nd Driest
Driest since:
1918
37th Wettest
Wettest since:
2016
Ties: 2015
Apr 1926–Jan 1927
10-Month		25.99"
(660.15mm)		25.32"
(643.13mm)		0.67"
(17.02mm)		75th Driest
Driest since:
1940
54th Wettest
Wettest since:
2016
Ties: 1903
Mar 1926–Jan 1927
11-Month		28.30"
(718.82mm)		27.83"
(706.88mm)		0.47"
(11.94mm)		73rd Driest
Driest since:
1957
56th Wettest
Wettest since:
1974
Feb 1926–Jan 1927
12-Month		30.35"
(770.89mm)		29.96"
(760.98mm)		0.39"
(9.91mm)		69th Driest
Driest since:
1931
60th Wettest
Wettest since:
1974
Aug 1925–Jan 1927
18-Month		44.46"
(1,129.28mm)		44.14"
(1,121.16mm)		0.32"
(8.12mm)		67th Driest
Driest since:
1955
61st Wettest
Wettest since:
2020
Feb 1925–Jan 1927
24-Month		57.38"
(1,457.45mm)		59.93"
(1,522.22mm)		-2.55"
(-64.77mm)		29th Driest
Driest since:
1918
99th Wettest
Wettest since:
2020
Feb 1924–Jan 1927
36-Month		84.19"
(2,138.43mm)		89.86"
(2,282.44mm)		-5.67"
(-144.01mm)		9th Driest
Driest since:
1957
118th Wettest
Wettest since:
2020
Feb 1923–Jan 1927
48-Month		115.43"
(2,931.92mm)		119.76"
(3,041.90mm)		-4.33"
(-109.98mm)		21st Driest
Driest since:
1957
105th Wettest
Wettest since:
2020
Feb 1922–Jan 1927
60-Month		145.73"
(3,701.54mm)		149.63"
(3,800.60mm)		-3.90"
(-99.06mm)		28th Driest
Driest since:
1957
97th Wettest
Wettest since:
2020
Ties: 1918

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