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

View Period (Months):
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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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