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, June 2021

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
June 2021
1-Month
2.97"
(75.44mm)
2.93"
(74.42mm)
0.04"
(1.02mm)
66th Driest
Driest since:
1933
63rd Wettest
Wettest since:
1928
Ties: 1899, 1919
May–Jun 2021
2-Month
5.96"
(151.38mm)
5.84"
(148.34mm)
0.12"
(3.04mm)
69th Driest
Driest since:
1988
60th Wettest
Wettest since:
2015
Apr–Jun 2021
3-Month
8.02"
(203.71mm)
8.35"
(212.09mm)
-0.33"
(-8.38mm)
45th Driest
Driest since:
1988
84th Wettest
Wettest since:
1957
Mar–Jun 2021
4-Month
10.53"
(267.46mm)
10.86"
(275.84mm)
-0.33"
(-8.38mm)
47th Driest
Driest since:
1988
82nd Wettest
Wettest since:
1957
Ties: 1977
Feb–Jun 2021
5-Month
12.55"
(318.77mm)
13.00"
(330.20mm)
-0.45"
(-11.43mm)
44th Driest
Driest since:
1988
85th Wettest
Wettest since:
2019
Ties: 1967, 1968
Jan–Jun 2021
6-Month
14.64"
(371.86mm)
15.31"
(388.87mm)
-0.67"
(-17.01mm)
36th Driest
Driest since:
1988
93rd Wettest
Wettest since:
2019
Ties: 1921, 1959
Dec 2020–Jun 2021
7-Month
16.69"
(423.93mm)
17.66"
(448.56mm)
-0.97"
(-24.63mm)
34th Driest
Driest since:
1931
94th Wettest
Wettest since:
2019
Nov 2020–Jun 2021
8-Month
18.63"
(473.20mm)
19.89"
(505.21mm)
-1.26"
(-32.01mm)
33rd Driest
Driest since:
1934
95th Wettest
Wettest since:
2019
Oct 2020–Jun 2021
9-Month
20.81"
(528.57mm)
22.05"
(560.07mm)
-1.24"
(-31.50mm)
32nd Driest
Driest since:
1934
96th Wettest
Wettest since:
2019
Sep 2020–Jun 2021
10-Month
23.25"
(590.55mm)
24.55"
(623.57mm)
-1.30"
(-33.02mm)
32nd Driest
Driest since:
1934
96th Wettest
Wettest since:
2019
Aug 2020–Jun 2021
11-Month
25.67"
(652.02mm)
27.17"
(690.12mm)
-1.50"
(-38.10mm)
32nd Driest
Driest since:
1918
96th Wettest
Wettest since:
2019
Jul 2020–Jun 2021
12-Month
28.61"
(726.69mm)
29.96"
(760.98mm)
-1.35"
(-34.29mm)
33rd Driest
Driest since:
1931
95th Wettest
Wettest since:
2019
Jan 2020–Jun 2021
18-Month
45.02"
(1,143.51mm)
45.27"
(1,149.86mm)
-0.25"
(-6.35mm)
57th Driest
Driest since:
1931
71st Wettest
Wettest since:
2019
Jul 2019–Jun 2021
24-Month
60.71"
(1,542.03mm)
59.93"
(1,522.22mm)
0.78"
(19.81mm)
71st Driest
Driest since:
1931
56th Wettest
Wettest since:
2020
Jul 2018–Jun 2021
36-Month
98.64"
(2,505.46mm)
89.89"
(2,283.21mm)
8.75"
(222.25mm)
116th Driest
Driest since:
1956
10th Wettest
Wettest since:
2019
Jul 2017–Jun 2021
48-Month
128.79"
(3,271.27mm)
119.79"
(3,042.67mm)
9.00"
(228.60mm)
116th Driest
Driest since:
1956
9th Wettest
Wettest since:
2019
Jul 2016–Jun 2021
60-Month
162.78"
(4,134.61mm)
149.66"
(3,801.36mm)
13.12"
(333.25mm)
119th Driest
Driest since:
1934
5th Wettest
Wettest since:
2020

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