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 1896

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Wettest/Driest
Since
Record
May 1896
1-Month
2.96"
(75.18mm)
2.91"
(73.91mm)
0.05"
(1.27mm)
69th Driest
Driest since:
1934
60th Wettest
Wettest to Date
2019
Ties: 1967
Apr–May 1896
2-Month
5.55"
(140.97mm)
5.43"
(137.92mm)
0.12"
(3.05mm)
75th Driest
Driest since:
1934
54th Wettest
Wettest to Date
1957
Mar–May 1896
3-Month
7.96"
(202.18mm)
7.94"
(201.68mm)
0.02"
(0.50mm)
64th Driest
Driest since:
1925
65th Wettest
Wettest to Date
1957, 1991
Ties: 1989, 2018
Feb–May 1896
4-Month
10.01"
(254.25mm)
10.07"
(255.78mm)
-0.06"
(-1.53mm)
69th Driest
Driest since:
1925
60th Wettest
Wettest to Date
2019
Ties: 1996, 2010
Jan–May 1896
5-Month
12.41"
(315.21mm)
12.39"
(314.71mm)
0.02"
(0.50mm)
70th Driest
Driest since:
1934
59th Wettest
Wettest to Date
2019
Dec 1895–May 1896
6-Month
14.94"
(379.48mm)
14.73"
(374.14mm)
0.21"
(5.34mm)
71st Driest
Driest to Date
1931
57th Wettest
Wettest to Date
2019
Nov 1895–May 1896
7-Month
17.23"
(437.64mm)
16.96"
(430.78mm)
0.27"
(6.86mm)
73rd Driest
Driest to Date
1934
55th Wettest
Wettest to Date
1983
Ties: 1943
Oct 1895–May 1896
8-Month
18.31"
(465.07mm)
19.13"
(485.90mm)
-0.82"
(-20.83mm)
37th Driest
Driest to Date
1934
91st Wettest
Wettest to Date
2019
Ties: 1989
Sep 1895–May 1896
9-Month
19.89"
(505.21mm)
21.62"
(549.15mm)
-1.73"
(-43.94mm)
22nd Driest
Driest to Date
1934
106th Wettest
Wettest to Date
2019
Aug 1895–May 1896
10-Month
22.42"
(569.47mm)
24.25"
(615.95mm)
-1.83"
(-46.48mm)
23rd Driest
Driest to Date
1918
105th Wettest
Wettest to Date
2019
Jul 1895–May 1896
11-Month
25.42"
(645.67mm)
27.03"
(686.56mm)
-1.61"
(-40.89mm)
28th Driest
Driest to Date
1931
100th Wettest
Wettest to Date
2019
Jun 1895–May 1896
12-Month
28.37"
(720.60mm)
29.95"
(760.73mm)
-1.58"
(-40.13mm)
31st Driest
Driest to Date
1934
97th Wettest
Wettest to Date
2019

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