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, March 2022

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
March 2022
1-Month
2.28"
(57.91mm)
2.51"
(63.75mm)
-0.23"
(-5.84mm)
42nd Driest
Driest since:
1910
87th Wettest
Wettest since:
1973
Ties: 1900
Feb–Mar 2022
2-Month
4.04"
(102.62mm)
4.64"
(117.86mm)
-0.60"
(-15.24mm)
23rd Driest
Driest since:
1910
106th Wettest
Wettest since:
1998
Jan–Mar 2022
3-Month
5.69"
(144.53mm)
6.96"
(176.78mm)
-1.27"
(-32.25mm)
7th Driest
Driest since:
1910
122nd Wettest
Wettest since:
1998
Dec 2021–Mar 2022
4-Month
8.08"
(205.23mm)
9.30"
(236.22mm)
-1.22"
(-30.99mm)
14th Driest
Driest since:
1981
114th Wettest
Wettest since:
1983, 1998
Nov 2021–Mar 2022
5-Month
9.38"
(238.25mm)
11.53"
(292.86mm)
-2.15"
(-54.61mm)
5th Driest
Driest since:
1977
123rd Wettest
Wettest since:
1983
Oct 2021–Mar 2022
6-Month
12.53"
(318.26mm)
13.70"
(347.98mm)
-1.17"
(-29.72mm)
27th Driest
Driest since:
1918
101st Wettest
Wettest since:
1983
Sep 2021–Mar 2022
7-Month
14.92"
(378.97mm)
16.19"
(411.23mm)
-1.27"
(-32.26mm)
29th Driest
Driest since:
1918
99th Wettest
Wettest since:
2019
Aug 2021–Mar 2022
8-Month
18.05"
(458.47mm)
18.82"
(478.03mm)
-0.77"
(-19.56mm)
40th Driest
Driest since:
1918
88th Wettest
Wettest since:
2019
Jul 2021–Mar 2022
9-Month
21.45"
(544.83mm)
21.60"
(548.64mm)
-0.15"
(-3.81mm)
59th Driest
Driest since:
1918
69th Wettest
Wettest since:
2019
Jun 2021–Mar 2022
10-Month
24.42"
(620.27mm)
24.53"
(623.06mm)
-0.11"
(-2.79mm)
53rd Driest
Driest since:
1918
75th Wettest
Wettest since:
2019
Ties: 1945
May 2021–Mar 2022
11-Month
27.41"
(696.21mm)
27.43"
(696.72mm)
-0.02"
(-0.51mm)
57th Driest
Driest since:
1918
71st Wettest
Wettest since:
2019
Apr 2021–Mar 2022
12-Month
29.47"
(748.54mm)
29.96"
(760.98mm)
-0.49"
(-12.44mm)
46th Driest
Driest since:
1918
82nd Wettest
Wettest since:
2016
Oct 2020–Mar 2022
18-Month
42.26"
(1,073.40mm)
43.68"
(1,109.47mm)
-1.42"
(-36.07mm)
37th Driest
Driest since:
1918
90th Wettest
Wettest since:
2020
Apr 2020–Mar 2022
24-Month
58.40"
(1,483.36mm)
59.92"
(1,521.97mm)
-1.52"
(-38.61mm)
42nd Driest
Driest since:
1955
85th Wettest
Wettest since:
2020
Apr 2019–Mar 2022
36-Month
93.21"
(2,367.53mm)
89.87"
(2,282.70mm)
3.34"
(84.83mm)
91st Driest
Driest since:
1955
35th Wettest
Wettest since:
2020
Apr 2018–Mar 2022
48-Month
128.72"
(3,269.49mm)
119.76"
(3,041.90mm)
8.96"
(227.59mm)
113th Driest
Driest since:
1957
12th Wettest
Wettest since:
2019
Apr 2017–Mar 2022
60-Month
160.17"
(4,068.32mm)
149.62"
(3,800.35mm)
10.55"
(267.97mm)
113th Driest
Driest since:
1957
11th Wettest
Wettest since:
2020

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