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, July 1913

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
July 1913
1-Month 		2.64"
(67.06mm)		 2.78"
(70.61mm)		 -0.14"
(-3.55mm)		 37th Driest
Driest since:
 1930
92nd Wettest
Wettest since:
 1950, 1958
Ties: 2003
Jun–Jul 1913
2-Month 		5.35"
(135.89mm)		 5.70"
(144.78mm)		 -0.35"
(-8.89mm)		 33rd Driest
Driest since:
 1930
96th Wettest
Wettest since:
 1928
Ties: 1926
May–Jul 1913
3-Month 		7.86"
(199.64mm)		 8.62"
(218.95mm)		 -0.76"
(-19.31mm)		 29th Driest
Driest since:
 1988
100th Wettest
Wettest since:
 2015
Apr–Jul 1913
4-Month 		9.91"
(251.71mm)		 11.13"
(282.70mm)		 -1.22"
(-30.99mm)		 19th Driest
Driest since:
 1934
110th Wettest
Wettest since:
 2015
Mar–Jul 1913
5-Month 		12.90"
(327.66mm)		 13.64"
(346.46mm)		 -0.74"
(-18.80mm)		 32nd Driest
Driest since:
 1936
97th Wettest
Wettest since:
 1973
Feb–Jul 1913
6-Month 		14.80"
(375.92mm)		 15.78"
(400.81mm)		 -0.98"
(-24.89mm)		 30th Driest
Driest since:
 1934
99th Wettest
Wettest since:
 2019
Jan–Jul 1913
7-Month 		17.67"
(448.82mm)		 18.09"
(459.49mm)		 -0.42"
(-10.67mm)		 45th Driest
Driest since:
 1934
84th Wettest
Wettest since:
 2019
Dec 1912–Jul 1913
8-Month 		19.77"
(502.16mm)		 20.44"
(519.18mm)		 -0.67"
(-17.02mm)		 40th Driest
Driest since:
 1931
88th Wettest
Wettest since:
 2019
Nov 1912–Jul 1913
9-Month 		21.29"
(540.77mm)		 22.66"
(575.56mm)		 -1.37"
(-34.79mm)		 31st Driest
Driest since:
 1934
97th Wettest
Wettest since:
 2019
Oct 1912–Jul 1913
10-Month 		23.42"
(594.87mm)		 24.83"
(630.68mm)		 -1.41"
(-35.81mm)		 31st Driest
Driest since:
 1934
97th Wettest
Wettest since:
 2019
Sep 1912–Jul 1913
11-Month 		25.93"
(658.62mm)		 27.33"
(694.18mm)		 -1.40"
(-35.56mm)		 31st Driest
Driest since:
 1934
97th Wettest
Wettest since:
 2019
Aug 1912–Jul 1913
12-Month 		28.98"
(736.09mm)		 29.95"
(760.73mm)		 -0.97"
(-24.64mm)		 39th Driest
Driest since:
 1918
89th Wettest
Wettest since:
 2019
Feb 1912–Jul 1913
18-Month 		46.20"
(1,173.48mm)		 45.74"
(1,161.80mm)		 0.46"
(11.68mm)		 65th Driest
Driest since:
 1931
63rd Wettest
Wettest since:
 2019
Aug 1911–Jul 1913
24-Month 		61.51"
(1,562.35mm)		 59.92"
(1,521.97mm)		 1.59"
(40.38mm)		 81st Driest
Driest since:
 1918
46th Wettest
Wettest since:
 2020
Ties: 1922
Aug 1910–Jul 1913
36-Month 		87.58"
(2,224.53mm)		 89.88"
(2,282.95mm)		 -2.30"
(-58.42mm)		 35th Driest
Driest since:
 1956
91st Wettest
Wettest since:
 2019
Aug 1909–Jul 1913
48-Month 		114.36"
(2,904.74mm)		 119.78"
(3,042.41mm)		 -5.42"
(-137.67mm)		 16th Driest
Driest since:
 1956
109th Wettest
Wettest since:
 2019
Aug 1908–Jul 1913
60-Month 		143.91"
(3,655.31mm)		 149.64"
(3,800.86mm)		 -5.73"
(-145.55mm)		 18th Driest
Driest to Date
 1934
106th Wettest
Wettest since:
 2019

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