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 1944

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
May 1944
1-Month
3.00"
(76.20mm)
2.91"
(73.91mm)
0.09"
(2.29mm)
75th Driest
Driest since:
1934
54th Wettest
Wettest since:
2019
Ties: 1902, 2008
Apr–May 1944
2-Month
6.30"
(160.02mm)
5.43"
(137.92mm)
0.87"
(22.10mm)
114th Driest
Driest since:
1934
15th Wettest
Wettest since:
1957
Ties: 1979
Mar–May 1944
3-Month
9.33"
(236.98mm)
7.94"
(201.68mm)
1.39"
(35.30mm)
115th Driest
Driest since:
1925
14th Wettest
Wettest since:
1957, 1991
Feb–May 1944
4-Month
11.99"
(304.55mm)
10.07"
(255.78mm)
1.92"
(48.77mm)
122nd Driest
Driest since:
1925
7th Wettest
Wettest since:
2019
Jan–May 1944
5-Month
13.87"
(352.30mm)
12.39"
(314.71mm)
1.48"
(37.59mm)
114th Driest
Driest since:
1934
15th Wettest
Wettest since:
2019
Dec 1943–May 1944
6-Month
15.61"
(396.49mm)
14.73"
(374.14mm)
0.88"
(22.35mm)
91st Driest
Driest since:
1931
37th Wettest
Wettest since:
2019
Nov 1943–May 1944
7-Month
17.05"
(433.07mm)
16.96"
(430.78mm)
0.09"
(2.29mm)
67th Driest
Driest since:
1934
61st Wettest
Wettest since:
1983
Oct 1943–May 1944
8-Month
18.95"
(481.33mm)
19.13"
(485.90mm)
-0.18"
(-4.57mm)
56th Driest
Driest since:
1934
72nd Wettest
Wettest since:
2019
Ties: 1961
Sep 1943–May 1944
9-Month
20.84"
(529.34mm)
21.62"
(549.15mm)
-0.78"
(-19.81mm)
43rd Driest
Driest since:
1934
85th Wettest
Wettest since:
2019
Aug 1943–May 1944
10-Month
22.96"
(583.18mm)
24.25"
(615.95mm)
-1.29"
(-32.77mm)
33rd Driest
Driest since:
1918
95th Wettest
Wettest since:
2019
Ties: 1900
Jul 1943–May 1944
11-Month
25.53"
(648.46mm)
27.03"
(686.56mm)
-1.50"
(-38.10mm)
30th Driest
Driest since:
1931
98th Wettest
Wettest since:
2019
Jun 1943–May 1944
12-Month
28.80"
(731.52mm)
29.95"
(760.73mm)
-1.15"
(-29.21mm)
37th Driest
Driest since:
1934
91st Wettest
Wettest since:
2019
Dec 1942–May 1944
18-Month
43.68"
(1,109.47mm)
44.70"
(1,135.38mm)
-1.02"
(-25.91mm)
40th Driest
Driest since:
1931
87th Wettest
Wettest since:
2019
Jun 1942–May 1944
24-Month
59.97"
(1,523.24mm)
59.92"
(1,521.97mm)
0.05"
(1.27mm)
61st Driest
Driest since:
1931
66th Wettest
Wettest since:
2020
Ties: 1903
Jun 1941–May 1944
36-Month
93.20"
(2,367.28mm)
89.88"
(2,282.95mm)
3.32"
(84.33mm)
95th Driest
Driest since:
1955
31st Wettest
Wettest since:
2019
Jun 1940–May 1944
48-Month
122.79"
(3,118.87mm)
119.78"
(3,042.41mm)
3.01"
(76.46mm)
86th Driest
Driest since:
1956
39th Wettest
Wettest since:
2019
Jun 1939–May 1944
60-Month
149.71"
(3,802.63mm)
149.64"
(3,800.86mm)
0.07"
(1.77mm)
60th Driest
Driest since:
1957
64th Wettest
Wettest since:
2020

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