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, November 2020

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
November 2020
1-Month
1.94"
(49.28mm)
2.23"
(56.64mm)
-0.29"
(-7.36mm)
35th Driest
Driest since:
1917
94th Wettest
Wettest since:
1983
Ties: 2002, 2019
Oct–Nov 2020
2-Month
4.12"
(104.65mm)
4.40"
(111.76mm)
-0.28"
(-7.11mm)
42nd Driest
Driest since:
1917
87th Wettest
Wettest since:
1985
Ties: 1897, 2007, 2022
Sep–Nov 2020
3-Month
6.56"
(166.62mm)
6.88"
(174.75mm)
-0.32"
(-8.13mm)
46th Driest
Driest since:
1939
83rd Wettest
Wettest since:
1985
Ties: 1958
Aug–Nov 2020
4-Month
8.98"
(228.09mm)
9.50"
(241.30mm)
-0.52"
(-13.21mm)
36th Driest
Driest since:
1952
93rd Wettest
Wettest since:
2018
Ties: 1948
Jul–Nov 2020
5-Month
11.92"
(302.77mm)
12.28"
(311.91mm)
-0.36"
(-9.14mm)
47th Driest
Driest since:
1952
82nd Wettest
Wettest since:
2018
Jun–Nov 2020
6-Month
14.65"
(372.11mm)
15.20"
(386.08mm)
-0.55"
(-13.97mm)
40th Driest
Driest since:
1952
89th Wettest
Wettest since:
2004
May–Nov 2020
7-Month
17.74"
(450.60mm)
18.12"
(460.25mm)
-0.38"
(-9.65mm)
48th Driest
Driest since:
1952
81st Wettest
Wettest since:
2004
Apr–Nov 2020
8-Month
20.26"
(514.60mm)
20.63"
(524.00mm)
-0.37"
(-9.40mm)
49th Driest
Driest since:
1952
80th Wettest
Wettest since:
2015
Mar–Nov 2020
9-Month
23.12"
(587.25mm)
23.14"
(587.76mm)
-0.02"
(-0.51mm)
56th Driest
Driest since:
1956
73rd Wettest
Wettest since:
1973
Ties: 2006
Feb–Nov 2020
10-Month
25.57"
(649.48mm)
25.28"
(642.11mm)
0.29"
(7.37mm)
62nd Driest
Driest since:
1910
67th Wettest
Wettest since:
2019
Jan–Nov 2020
11-Month
28.33"
(719.58mm)
27.59"
(700.79mm)
0.74"
(18.79mm)
81st Driest
Driest since:
1910
48th Wettest
Wettest since:
2019
Ties: 1942
Dec 2019–Nov 2020
12-Month
30.90"
(784.86mm)
29.94"
(760.48mm)
0.96"
(24.38mm)
83rd Driest
Driest since:
1931
45th Wettest
Wettest since:
2019
Ties: 1932
Jun 2019–Nov 2020
18-Month
47.39"
(1,203.71mm)
45.16"
(1,147.06mm)
2.23"
(56.65mm)
95th Driest
Driest since:
1931
33rd Wettest
Wettest since:
2019
Dec 2018–Nov 2020
24-Month
66.40"
(1,686.56mm)
59.90"
(1,521.46mm)
6.50"
(165.10mm)
120th Driest
Driest since:
1931
7th Wettest
Wettest since:
2019
Dec 2017–Nov 2020
36-Month
99.39"
(2,524.51mm)
89.86"
(2,282.44mm)
9.53"
(242.07mm)
121st Driest
Driest since:
1956
5th Wettest
Wettest since:
2019
Dec 2016–Nov 2020
48-Month
132.83"
(3,373.88mm)
119.78"
(3,042.41mm)
13.05"
(331.47mm)
123rd Driest
Driest since:
1956
2nd Wettest
Wettest since:
2019
Dec 2015–Nov 2020
60-Month
165.59"
(4,205.99mm)
149.66"
(3,801.36mm)
15.93"
(404.63mm)
122nd Driest
Driest since:
1956
2nd Wettest
Wettest since:
2019

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