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 1910

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
May 1910
1-Month
2.59"
(65.79mm)
2.91"
(73.91mm)
-0.32"
(-8.12mm)
29th Driest
Driest since:
1934
100th Wettest
Wettest since:
2019
Ties: 1904, 1918
Apr–May 1910
2-Month
4.65"
(118.11mm)
5.43"
(137.92mm)
-0.78"
(-19.81mm)
14th Driest
Driest since:
1934
115th Wettest
Wettest since:
1957
Mar–May 1910
3-Month
5.67"
(144.02mm)
7.94"
(201.68mm)
-2.27"
(-57.66mm)
2nd Driest
Driest since:
1925
127th Wettest
Wettest since:
1957, 1991
Feb–May 1910
4-Month
7.78"
(197.61mm)
10.07"
(255.78mm)
-2.29"
(-58.17mm)
3rd Driest
Driest since:
1925
126th Wettest
Wettest since:
2019
Jan–May 1910
5-Month
9.93"
(252.22mm)
12.39"
(314.71mm)
-2.46"
(-62.49mm)
4th Driest
Driest since:
1934
125th Wettest
Wettest since:
2019
Dec 1909–May 1910
6-Month
12.53"
(318.26mm)
14.73"
(374.14mm)
-2.20"
(-55.88mm)
6th Driest
Driest since:
1931
122nd Wettest
Wettest since:
2019
Nov 1909–May 1910
7-Month
15.48"
(393.19mm)
16.96"
(430.78mm)
-1.48"
(-37.59mm)
19th Driest
Driest since:
1934
109th Wettest
Wettest since:
1983
Oct 1909–May 1910
8-Month
17.02"
(432.31mm)
19.13"
(485.90mm)
-2.11"
(-53.59mm)
14th Driest
Driest since:
1934
114th Wettest
Wettest since:
2019
Sep 1909–May 1910
9-Month
19.30"
(490.22mm)
21.62"
(549.15mm)
-2.32"
(-58.93mm)
15th Driest
Driest since:
1934
113th Wettest
Wettest since:
2019
Aug 1909–May 1910
10-Month
21.71"
(551.43mm)
24.25"
(615.95mm)
-2.54"
(-64.52mm)
15th Driest
Driest since:
1918
113th Wettest
Wettest since:
2019
Jul 1909–May 1910
11-Month
24.74"
(628.40mm)
27.03"
(686.56mm)
-2.29"
(-58.16mm)
17th Driest
Driest since:
1931
111th Wettest
Wettest since:
2019
Jun 1909–May 1910
12-Month
27.97"
(710.44mm)
29.95"
(760.73mm)
-1.98"
(-50.29mm)
21st Driest
Driest since:
1934
107th Wettest
Wettest since:
2019
Dec 1908–May 1910
18-Month
42.85"
(1,088.39mm)
44.70"
(1,135.38mm)
-1.85"
(-46.99mm)
28th Driest
Driest since:
1931
99th Wettest
Wettest since:
2019
Jun 1908–May 1910
24-Month
57.29"
(1,455.17mm)
59.92"
(1,521.97mm)
-2.63"
(-66.80mm)
25th Driest
Driest since:
1931
102nd Wettest
Wettest since:
2020
Jun 1907–May 1910
36-Month
89.07"
(2,262.38mm)
89.88"
(2,282.95mm)
-0.81"
(-20.57mm)
51st Driest
Driest since:
1955
75th Wettest
Wettest since:
2019
Jun 1906–May 1910
48-Month
121.95"
(3,097.53mm)
119.78"
(3,042.41mm)
2.17"
(55.12mm)
81st Driest
Driest since:
1956
44th Wettest
Wettest since:
2019
Jun 1905–May 1910
60-Month
153.29"
(3,893.57mm)
149.64"
(3,800.86mm)
3.65"
(92.71mm)
85th Driest
Driest since:
1957
39th Wettest
Wettest since:
2020
Ties: 2009

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