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 2019

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 2019
1-Month
2.56"
(65.02mm)
2.31"
(58.67mm)
0.25"
(6.35mm)
95th Driest
Driest since:
1981
34th Wettest
Wettest since:
1916
Dec 2018–Jan 2019
2-Month
5.81"
(147.57mm)
4.66"
(118.36mm)
1.15"
(29.21mm)
115th Driest
Driest since:
1981
13th Wettest
Wettest since:
1932
Nov 2018–Jan 2019
3-Month
8.52"
(216.41mm)
6.89"
(175.01mm)
1.63"
(41.40mm)
116th Driest
Driest since:
1977
12th Wettest
Wettest since:
2016
Ties: 1916
Oct 2018–Jan 2019
4-Month
11.95"
(303.53mm)
9.06"
(230.12mm)
2.89"
(73.41mm)
126th Driest
Driest since:
1981
2nd Wettest
Wettest since:
2016
Sep 2018–Jan 2019
5-Month
15.52"
(394.21mm)
11.55"
(293.37mm)
3.97"
(100.84mm)
127th Driest
Driest since:
1940
1st Wettest
Wettest to Date
2019
Aug 2018–Jan 2019
6-Month
18.50"
(469.90mm)
14.17"
(359.92mm)
4.33"
(109.98mm)
127th Driest
Driest since:
1940
1st Wettest
Wettest to Date
2019
Jul 2018–Jan 2019
7-Month
21.36"
(542.54mm)
16.96"
(430.78mm)
4.40"
(111.76mm)
127th Driest
Driest since:
1940
1st Wettest
Wettest to Date
2019
Jun 2018–Jan 2019
8-Month
24.51"
(622.55mm)
19.88"
(504.95mm)
4.63"
(117.60mm)
127th Driest
Driest since:
1981
1st Wettest
Wettest to Date
2019
May 2018–Jan 2019
9-Month
27.53"
(699.26mm)
22.79"
(578.87mm)
4.74"
(120.39mm)
126th Driest
Driest since:
1918
2nd Wettest
Wettest since:
2016
Apr 2018–Jan 2019
10-Month
29.99"
(761.75mm)
25.32"
(643.13mm)
4.67"
(118.62mm)
126th Driest
Driest since:
1940
2nd Wettest
Wettest since:
2016
Mar 2018–Jan 2019
11-Month
32.47"
(824.74mm)
27.83"
(706.88mm)
4.64"
(117.86mm)
125th Driest
Driest since:
1957
3rd Wettest
Wettest since:
1974
Feb 2018–Jan 2019
12-Month
35.36"
(898.14mm)
29.96"
(760.98mm)
5.40"
(137.16mm)
126th Driest
Driest since:
1931
2nd Wettest
Wettest since:
1974
Aug 2017–Jan 2019
18-Month
48.71"
(1,237.23mm)
44.14"
(1,121.16mm)
4.57"
(116.07mm)
119th Driest
Driest since:
1955
8th Wettest
Wettest since:
2020
Feb 2017–Jan 2019
24-Month
66.28"
(1,683.51mm)
59.93"
(1,522.22mm)
6.35"
(161.29mm)
122nd Driest
Driest since:
1918
5th Wettest
Wettest since:
2020
Feb 2016–Jan 2019
36-Month
98.90"
(2,512.06mm)
89.86"
(2,282.44mm)
9.04"
(229.62mm)
121st Driest
Driest since:
1957
5th Wettest
Wettest since:
2020
Feb 2015–Jan 2019
48-Month
133.70"
(3,395.98mm)
119.76"
(3,041.90mm)
13.94"
(354.08mm)
123rd Driest
Driest since:
1957
2nd Wettest
Wettest to Date
2020
Feb 2014–Jan 2019
60-Month
165.01"
(4,191.25mm)
149.63"
(3,800.60mm)
15.38"
(390.65mm)
122nd Driest
Driest since:
1957
2nd Wettest
Wettest to Date
2020

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