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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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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