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 1956

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
July 1956
1-Month 		2.78"
(70.61mm)		 2.78"
(70.61mm)		 0.00"
(0.00mm)		 60th Driest
Driest since:
 1930
69th Wettest
Wettest since:
 1950, 1958
Ties: 2022
Jun–Jul 1956
2-Month 		4.99"
(126.75mm)		 5.70"
(144.78mm)		 -0.71"
(-18.03mm)		 16th Driest
Driest since:
 1930
113th Wettest
Wettest since:
 1928
May–Jul 1956
3-Month 		7.59"
(192.79mm)		 8.62"
(218.95mm)		 -1.03"
(-26.16mm)		 18th Driest
Driest since:
 1988
111th Wettest
Wettest since:
 2015
Ties: 1917
Apr–Jul 1956
4-Month 		9.66"
(245.36mm)		 11.13"
(282.70mm)		 -1.47"
(-37.34mm)		 10th Driest
Driest since:
 1934
119th Wettest
Wettest since:
 2015
Mar–Jul 1956
5-Month 		11.48"
(291.59mm)		 13.64"
(346.46mm)		 -2.16"
(-54.87mm)		 8th Driest
Driest since:
 1936
121st Wettest
Wettest since:
 1973
Feb–Jul 1956
6-Month 		14.10"
(358.14mm)		 15.78"
(400.81mm)		 -1.68"
(-42.67mm)		 15th Driest
Driest since:
 1934
114th Wettest
Wettest since:
 2019
Ties: 1926
Jan–Jul 1956
7-Month 		16.37"
(415.80mm)		 18.09"
(459.49mm)		 -1.72"
(-43.69mm)		 19th Driest
Driest since:
 1934
110th Wettest
Wettest since:
 2019
Dec 1955–Jul 1956
8-Month 		18.61"
(472.69mm)		 20.44"
(519.18mm)		 -1.83"
(-46.49mm)		 20th Driest
Driest since:
 1931
108th Wettest
Wettest since:
 2019
Nov 1955–Jul 1956
9-Month 		20.53"
(521.46mm)		 22.66"
(575.56mm)		 -2.13"
(-54.10mm)		 17th Driest
Driest since:
 1934
111th Wettest
Wettest since:
 2019
Oct 1955–Jul 1956
10-Month 		22.57"
(573.28mm)		 24.83"
(630.68mm)		 -2.26"
(-57.40mm)		 18th Driest
Driest since:
 1934
110th Wettest
Wettest since:
 2019
Sep 1955–Jul 1956
11-Month 		24.68"
(626.87mm)		 27.33"
(694.18mm)		 -2.65"
(-67.31mm)		 14th Driest
Driest since:
 1934
114th Wettest
Wettest since:
 2019
Aug 1955–Jul 1956
12-Month 		27.42"
(696.47mm)		 29.95"
(760.73mm)		 -2.53"
(-64.26mm)		 18th Driest
Driest since:
 1918
110th Wettest
Wettest since:
 2019
Ties: 1964
Feb 1955–Jul 1956
18-Month 		42.42"
(1,077.47mm)		 45.74"
(1,161.80mm)		 -3.32"
(-84.33mm)		 14th Driest
Driest since:
 1931
114th Wettest
Wettest since:
 2019
Aug 1954–Jul 1956
24-Month 		54.47"
(1,383.54mm)		 59.92"
(1,521.97mm)		 -5.45"
(-138.43mm)		 11th Driest
Driest since:
 1918
116th Wettest
Wettest since:
 2020
Aug 1953–Jul 1956
36-Month 		79.85"
(2,028.19mm)		 89.88"
(2,282.95mm)		 -10.03"
(-254.76mm)		 1st Driest
Driest to Date
 1956
125th Wettest
Wettest since:
 2019
Aug 1952–Jul 1956
48-Month 		107.86"
(2,739.64mm)		 119.78"
(3,042.41mm)		 -11.92"
(-302.77mm)		 1st Driest
Driest to Date
 1956
124th Wettest
Wettest since:
 2019
Aug 1951–Jul 1956
60-Month 		137.94"
(3,503.68mm)		 149.64"
(3,800.86mm)		 -11.70"
(-297.18mm)		 3rd Driest
Driest since:
 1934
121st Wettest
Wettest since:
 2019

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