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 1931

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 1931
1-Month
1.56"
(39.62mm)
2.31"
(58.67mm)
-0.75"
(-19.05mm)
10th Driest
Driest since:
1981
119th Wettest
Wettest since:
1916
Dec 1930–Jan 1931
2-Month
2.84"
(72.14mm)
4.66"
(118.36mm)
-1.82"
(-46.22mm)
2nd Driest
Driest since:
1981
126th Wettest
Wettest since:
1932
Nov 1930–Jan 1931
3-Month
5.12"
(130.05mm)
6.89"
(175.01mm)
-1.77"
(-44.96mm)
8th Driest
Driest since:
1977
120th Wettest
Wettest since:
2016
Oct 1930–Jan 1931
4-Month
7.43"
(188.72mm)
9.06"
(230.12mm)
-1.63"
(-41.40mm)
12th Driest
Driest since:
1981
116th Wettest
Wettest since:
2016
Sep 1930–Jan 1931
5-Month
9.76"
(247.90mm)
11.55"
(293.37mm)
-1.79"
(-45.47mm)
15th Driest
Driest since:
1940
113th Wettest
Wettest since:
2019
Aug 1930–Jan 1931
6-Month
11.72"
(297.69mm)
14.17"
(359.92mm)
-2.45"
(-62.23mm)
8th Driest
Driest since:
1940
120th Wettest
Wettest since:
2019
Jul 1930–Jan 1931
7-Month
13.51"
(343.15mm)
16.96"
(430.78mm)
-3.45"
(-87.63mm)
2nd Driest
Driest since:
1940
126th Wettest
Wettest since:
2019
Ties: 1981
Jun 1930–Jan 1931
8-Month
15.84"
(402.34mm)
19.88"
(504.95mm)
-4.04"
(-102.61mm)
2nd Driest
Driest since:
1981
126th Wettest
Wettest since:
2019
May 1930–Jan 1931
9-Month
19.01"
(482.85mm)
22.79"
(578.87mm)
-3.78"
(-96.02mm)
5th Driest
Driest since:
1918
123rd Wettest
Wettest since:
2016
Apr 1930–Jan 1931
10-Month
20.84"
(529.34mm)
25.32"
(643.13mm)
-4.48"
(-113.79mm)
3rd Driest
Driest since:
1940
125th Wettest
Wettest since:
2016
Mar 1930–Jan 1931
11-Month
22.82"
(579.63mm)
27.83"
(706.88mm)
-5.01"
(-127.25mm)
2nd Driest
Driest since:
1957
126th Wettest
Wettest since:
1974
Feb 1930–Jan 1931
12-Month
24.56"
(623.82mm)
29.96"
(760.98mm)
-5.40"
(-137.16mm)
1st Driest
Driest since:
1931
127th Wettest
Wettest since:
1974
Aug 1929–Jan 1931
18-Month
38.46"
(976.88mm)
44.14"
(1,121.16mm)
-5.68"
(-144.28mm)
4th Driest
Driest since:
1955
123rd Wettest
Wettest since:
2020
Feb 1929–Jan 1931
24-Month
54.93"
(1,395.22mm)
59.93"
(1,522.22mm)
-5.00"
(-127.00mm)
13th Driest
Driest since:
1918
114th Wettest
Wettest since:
2020
Feb 1928–Jan 1931
36-Month
85.51"
(2,171.95mm)
89.86"
(2,282.44mm)
-4.35"
(-110.49mm)
18th Driest
Driest since:
1957
108th Wettest
Wettest since:
2020
Feb 1927–Jan 1931
48-Month
117.08"
(2,973.83mm)
119.76"
(3,041.90mm)
-2.68"
(-68.07mm)
39th Driest
Driest since:
1957
86th Wettest
Wettest since:
2020
Feb 1926–Jan 1931
60-Month
147.43"
(3,744.72mm)
149.63"
(3,800.60mm)
-2.20"
(-55.88mm)
44th Driest
Driest since:
1957
80th Wettest
Wettest since:
2020

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