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 1918

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 1918
1-Month
2.41"
(61.21mm)
2.31"
(58.67mm)
0.10"
(2.54mm)
82nd Driest
Driest since:
1981
47th Wettest
Wettest since:
1916
Dec 1917–Jan 1918
2-Month
4.07"
(103.38mm)
4.66"
(118.36mm)
-0.59"
(-14.98mm)
29th Driest
Driest since:
1981
99th Wettest
Wettest since:
1932
Nov 1917–Jan 1918
3-Month
5.02"
(127.51mm)
6.89"
(175.01mm)
-1.87"
(-47.50mm)
4th Driest
Driest since:
1977
124th Wettest
Wettest since:
2016
Oct 1917–Jan 1918
4-Month
6.40"
(162.56mm)
9.06"
(230.12mm)
-2.66"
(-67.56mm)
2nd Driest
Driest since:
1981
126th Wettest
Wettest since:
2016
Ties: 1940
Sep 1917–Jan 1918
5-Month
8.57"
(217.68mm)
11.55"
(293.37mm)
-2.98"
(-75.69mm)
2nd Driest
Driest since:
1940
126th Wettest
Wettest since:
2019
Aug 1917–Jan 1918
6-Month
11.01"
(279.65mm)
14.17"
(359.92mm)
-3.16"
(-80.27mm)
4th Driest
Driest since:
1940
124th Wettest
Wettest since:
2019
Jul 1917–Jan 1918
7-Month
13.52"
(343.41mm)
16.96"
(430.78mm)
-3.44"
(-87.37mm)
4th Driest
Driest since:
1940
124th Wettest
Wettest since:
2019
Jun 1917–Jan 1918
8-Month
15.96"
(405.38mm)
19.88"
(504.95mm)
-3.92"
(-99.57mm)
3rd Driest
Driest since:
1981
125th Wettest
Wettest since:
2019
May 1917–Jan 1918
9-Month
18.60"
(472.44mm)
22.79"
(578.87mm)
-4.19"
(-106.43mm)
1st Driest
Driest since:
1918
127th Wettest
Wettest since:
2016
Apr 1917–Jan 1918
10-Month
21.28"
(540.51mm)
25.32"
(643.13mm)
-4.04"
(-102.62mm)
4th Driest
Driest since:
1940
124th Wettest
Wettest since:
2016
Mar 1917–Jan 1918
11-Month
23.76"
(603.50mm)
27.83"
(706.88mm)
-4.07"
(-103.38mm)
5th Driest
Driest since:
1957
123rd Wettest
Wettest since:
1974
Feb 1917–Jan 1918
12-Month
25.57"
(649.48mm)
29.96"
(760.98mm)
-4.39"
(-111.50mm)
5th Driest
Driest since:
1931
123rd Wettest
Wettest since:
1974
Aug 1916–Jan 1918
18-Month
38.06"
(966.72mm)
44.14"
(1,121.16mm)
-6.08"
(-154.44mm)
3rd Driest
Driest since:
1955
124th Wettest
Wettest since:
2020
Feb 1916–Jan 1918
24-Month
53.39"
(1,356.11mm)
59.93"
(1,522.22mm)
-6.54"
(-166.11mm)
1st Driest
Driest since:
1918
126th Wettest
Wettest since:
2020
Feb 1915–Jan 1918
36-Month
87.20"
(2,214.88mm)
89.86"
(2,282.44mm)
-2.66"
(-67.56mm)
33rd Driest
Driest since:
1957
93rd Wettest
Wettest since:
2020
Feb 1914–Jan 1918
48-Month
116.26"
(2,953.00mm)
119.76"
(3,041.90mm)
-3.50"
(-88.90mm)
30th Driest
Driest since:
1957
95th Wettest
Wettest since:
2020
Feb 1913–Jan 1918
60-Month
145.73"
(3,701.54mm)
149.63"
(3,800.60mm)
-3.90"
(-99.06mm)
28th Driest
Driest since:
1957
96th Wettest
Wettest since:
2020
Ties: 1927

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