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, May 1932

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
May 1932
1-Month 		2.42"
(61.47mm)		 2.91"
(73.91mm)		 -0.49"
(-12.44mm)		 19th Driest
Driest since:
 1934
110th Wettest
Wettest since:
 2019
Ties: 1924
Apr–May 1932
2-Month 		4.56"
(115.82mm)		 5.43"
(137.92mm)		 -0.87"
(-22.10mm)		 12th Driest
Driest since:
 1934
117th Wettest
Wettest since:
 1957
Ties: 1913
Mar–May 1932
3-Month 		6.87"
(174.50mm)		 7.94"
(201.68mm)		 -1.07"
(-27.18mm)		 15th Driest
Driest since:
 1925
114th Wettest
Wettest since:
 1957, 1991
Feb–May 1932
4-Month 		9.10"
(231.14mm)		 10.07"
(255.78mm)		 -0.97"
(-24.64mm)		 20th Driest
Driest since:
 1925
109th Wettest
Wettest since:
 2019
Ties: 1985
Jan–May 1932
5-Month 		12.35"
(313.69mm)		 12.39"
(314.71mm)		 -0.04"
(-1.02mm)		 65th Driest
Driest since:
 1934
64th Wettest
Wettest since:
 2019
Dec 1931–May 1932
6-Month 		15.73"
(399.54mm)		 14.73"
(374.14mm)		 1.00"
(25.40mm)		 97th Driest
Driest since:
 1931
31st Wettest
Wettest since:
 2019
Nov 1931–May 1932
7-Month 		18.27"
(464.06mm)		 16.96"
(430.78mm)		 1.31"
(33.28mm)		 103rd Driest
Driest since:
 1934
25th Wettest
Wettest since:
 1983
Oct 1931–May 1932
8-Month 		20.17"
(512.32mm)		 19.13"
(485.90mm)		 1.04"
(26.42mm)		 93rd Driest
Driest since:
 1934
35th Wettest
Wettest since:
 2019
Sep 1931–May 1932
9-Month 		22.23"
(564.64mm)		 21.62"
(549.15mm)		 0.61"
(15.49mm)		 79th Driest
Driest since:
 1934
49th Wettest
Wettest since:
 2019
Aug 1931–May 1932
10-Month 		24.95"
(633.73mm)		 24.25"
(615.95mm)		 0.70"
(17.78mm)		 77th Driest
Driest since:
 1918
51st Wettest
Wettest since:
 2019
Jul 1931–May 1932
11-Month 		27.66"
(702.56mm)		 27.03"
(686.56mm)		 0.63"
(16.00mm)		 78th Driest
Driest since:
 1931
50th Wettest
Wettest since:
 2019
Jun 1931–May 1932
12-Month 		29.80"
(756.92mm)		 29.95"
(760.73mm)		 -0.15"
(-3.81mm)		 55th Driest
Driest since:
 1934
73rd Wettest
Wettest since:
 2019
Dec 1930–May 1932
18-Month 		41.15"
(1,045.21mm)		 44.70"
(1,135.38mm)		 -3.55"
(-90.17mm)		 16th Driest
Driest since:
 1931
111th Wettest
Wettest since:
 2019
Jun 1930–May 1932
24-Month 		54.15"
(1,375.41mm)		 59.92"
(1,521.97mm)		 -5.77"
(-146.56mm)		 9th Driest
Driest since:
 1931
118th Wettest
Wettest since:
 2020
Jun 1929–May 1932
36-Month 		81.97"
(2,082.04mm)		 89.88"
(2,282.95mm)		 -7.91"
(-200.91mm)		 3rd Driest
Driest to Date
 1955
123rd Wettest
Wettest since:
 2019
Jun 1928–May 1932
48-Month 		114.33"
(2,903.98mm)		 119.78"
(3,042.41mm)		 -5.45"
(-138.43mm)		 13th Driest
Driest since:
 1956
112th Wettest
Wettest since:
 2019
Jun 1927–May 1932
60-Month 		144.04"
(3,658.62mm)		 149.64"
(3,800.86mm)		 -5.60"
(-142.24mm)		 14th Driest
Driest since:
 1957
110th Wettest
Wettest since:
 2020
Ties: 1941

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