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 1942

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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
May 1942
1-Month
3.16"
(80.26mm)
2.91"
(73.91mm)
0.25"
(6.35mm)
88th Driest
Driest since:
1934
41st Wettest
Wettest since:
2019
Ties: 1906
Apr–May 1942
2-Month
6.00"
(152.40mm)
5.43"
(137.92mm)
0.57"
(14.48mm)
100th Driest
Driest since:
1934
29th Wettest
Wettest since:
1957
Mar–May 1942
3-Month
8.46"
(214.88mm)
7.94"
(201.68mm)
0.52"
(13.20mm)
96th Driest
Driest since:
1925
33rd Wettest
Wettest since:
1957, 1991
Feb–May 1942
4-Month
10.46"
(265.68mm)
10.07"
(255.78mm)
0.39"
(9.90mm)
84th Driest
Driest since:
1925
45th Wettest
Wettest since:
2019
Jan–May 1942
5-Month
12.04"
(305.82mm)
12.39"
(314.71mm)
-0.35"
(-8.89mm)
58th Driest
Driest since:
1934
71st Wettest
Wettest since:
2019
Dec 1941–May 1942
6-Month
14.85"
(377.19mm)
14.73"
(374.14mm)
0.12"
(3.05mm)
68th Driest
Driest since:
1931
60th Wettest
Wettest since:
2019
Nov 1941–May 1942
7-Month
16.57"
(420.88mm)
16.96"
(430.78mm)
-0.39"
(-9.90mm)
56th Driest
Driest since:
1934
72nd Wettest
Wettest since:
1983
Oct 1941–May 1942
8-Month
20.34"
(516.64mm)
19.13"
(485.90mm)
1.21"
(30.74mm)
98th Driest
Driest since:
1934
30th Wettest
Wettest since:
2019
Sep 1941–May 1942
9-Month
23.50"
(596.90mm)
21.62"
(549.15mm)
1.88"
(47.75mm)
105th Driest
Driest since:
1934
23rd Wettest
Wettest since:
2019
Aug 1941–May 1942
10-Month
26.28"
(667.51mm)
24.25"
(615.95mm)
2.03"
(51.56mm)
106th Driest
Driest since:
1918
22nd Wettest
Wettest since:
2019
Jul 1941–May 1942
11-Month
29.43"
(747.52mm)
27.03"
(686.56mm)
2.40"
(60.96mm)
109th Driest
Driest since:
1931
19th Wettest
Wettest since:
2019
Jun 1941–May 1942
12-Month
33.23"
(844.04mm)
29.95"
(760.73mm)
3.28"
(83.31mm)
116th Driest
Driest since:
1934
12th Wettest
Wettest to Date
2019
Dec 1940–May 1942
18-Month
47.69"
(1,211.33mm)
44.70"
(1,135.38mm)
2.99"
(75.95mm)
101st Driest
Driest since:
1931
26th Wettest
Wettest since:
2019
Jun 1940–May 1942
24-Month
62.82"
(1,595.63mm)
59.92"
(1,521.97mm)
2.90"
(73.66mm)
100th Driest
Driest since:
1931
27th Wettest
Wettest since:
2020
Jun 1939–May 1942
36-Month
89.74"
(2,279.40mm)
89.88"
(2,282.95mm)
-0.14"
(-3.55mm)
58th Driest
Driest since:
1955
68th Wettest
Wettest since:
2019
Ties: 1972
Jun 1938–May 1942
48-Month
117.58"
(2,986.53mm)
119.78"
(3,042.41mm)
-2.20"
(-55.88mm)
40th Driest
Driest since:
1956
85th Wettest
Wettest since:
2019
Jun 1937–May 1942
60-Month
148.81"
(3,779.77mm)
149.64"
(3,800.86mm)
-0.83"
(-21.09mm)
54th Driest
Driest since:
1957
70th Wettest
Wettest since:
2020

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