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 1973

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
July 1973
1-Month 		2.96"
(75.18mm)		 2.78"
(70.61mm)		 0.18"
(4.57mm)		 90th Driest
Driest since:
 1930
39th Wettest
Wettest since:
 1950, 1958
Jun–Jul 1973
2-Month 		6.01"
(152.65mm)		 5.70"
(144.78mm)		 0.31"
(7.87mm)		 88th Driest
Driest since:
 1930
41st Wettest
Wettest since:
 1928
Ties: 1919, 2018
May–Jul 1973
3-Month 		9.04"
(229.62mm)		 8.62"
(218.95mm)		 0.42"
(10.67mm)		 81st Driest
Driest since:
 1988
48th Wettest
Wettest since:
 2015
Apr–Jul 1973
4-Month 		12.37"
(314.20mm)		 11.13"
(282.70mm)		 1.24"
(31.50mm)		 110th Driest
Driest since:
 1934
19th Wettest
Wettest since:
 2015
Mar–Jul 1973
5-Month 		16.37"
(415.80mm)		 13.64"
(346.46mm)		 2.73"
(69.34mm)		 128th Driest
Driest since:
 1936
1st Wettest
Wettest to Date
 1973
Feb–Jul 1973
6-Month 		18.33"
(465.58mm)		 15.78"
(400.81mm)		 2.55"
(64.77mm)		 125th Driest
Driest since:
 1934
4th Wettest
Wettest since:
 2019
Jan–Jul 1973
7-Month 		20.81"
(528.57mm)		 18.09"
(459.49mm)		 2.72"
(69.08mm)		 122nd Driest
Driest since:
 1934
7th Wettest
Wettest since:
 2019
Ties: 2017
Dec 1972–Jul 1973
8-Month 		23.83"
(605.28mm)		 20.44"
(519.18mm)		 3.39"
(86.10mm)		 125th Driest
Driest since:
 1931
3rd Wettest
Wettest to Date
 2019
Nov 1972–Jul 1973
9-Month 		26.88"
(682.75mm)		 22.66"
(575.56mm)		 4.22"
(107.19mm)		 124th Driest
Driest since:
 1934
4th Wettest
Wettest to Date
 2019
Oct 1972–Jul 1973
10-Month 		29.63"
(752.60mm)		 24.83"
(630.68mm)		 4.80"
(121.92mm)		 126th Driest
Driest since:
 1934
2nd Wettest
Wettest to Date
 2019
Sep 1972–Jul 1973
11-Month 		32.37"
(822.20mm)		 27.33"
(694.18mm)		 5.04"
(128.02mm)		 126th Driest
Driest since:
 1934
2nd Wettest
Wettest to Date
 2019
Aug 1972–Jul 1973
12-Month 		35.01"
(889.25mm)		 29.95"
(760.73mm)		 5.06"
(128.52mm)		 126th Driest
Driest since:
 1918
2nd Wettest
Wettest to Date
 2019
Feb 1972–Jul 1973
18-Month 		50.18"
(1,274.57mm)		 45.74"
(1,161.80mm)		 4.44"
(112.77mm)		 117th Driest
Driest since:
 1931
11th Wettest
Wettest since:
 2019
Ties: 1993
Aug 1971–Jul 1973
24-Month 		66.05"
(1,677.67mm)		 59.92"
(1,521.97mm)		 6.13"
(155.70mm)		 119th Driest
Driest since:
 1918
8th Wettest
Wettest to Date
 2020
Aug 1970–Jul 1973
36-Month 		95.57"
(2,427.48mm)		 89.88"
(2,282.95mm)		 5.69"
(144.53mm)		 110th Driest
Driest since:
 1956
16th Wettest
Wettest to Date
 2019
Aug 1969–Jul 1973
48-Month 		124.38"
(3,159.25mm)		 119.78"
(3,042.41mm)		 4.60"
(116.84mm)		 98th Driest
Driest since:
 1956
27th Wettest
Wettest since:
 2019
Aug 1968–Jul 1973
60-Month 		156.07"
(3,964.18mm)		 149.64"
(3,800.86mm)		 6.43"
(163.32mm)		 101st Driest
Driest since:
 1934
23rd Wettest
Wettest to Date
 2019

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