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 1915

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
July 1915
1-Month
3.57"
(90.68mm)
2.78"
(70.61mm)
0.79"
(20.07mm)
125th Driest
Driest since:
1930
4th Wettest
Wettest to Date
1950, 1958
Jun–Jul 1915
2-Month
6.75"
(171.45mm)
5.70"
(144.78mm)
1.05"
(26.67mm)
120th Driest
Driest since:
1930
9th Wettest
Wettest since:
1928
May–Jul 1915
3-Month
10.64"
(270.26mm)
8.62"
(218.95mm)
2.02"
(51.31mm)
127th Driest
Driest since:
1988
2nd Wettest
Wettest to Date
2015
Apr–Jul 1915
4-Month
12.96"
(329.18mm)
11.13"
(282.70mm)
1.83"
(46.48mm)
124th Driest
Driest since:
1934
5th Wettest
Wettest since:
2015
Mar–Jul 1915
5-Month
14.47"
(367.54mm)
13.64"
(346.46mm)
0.83"
(21.08mm)
95th Driest
Driest since:
1936
34th Wettest
Wettest since:
1973
Ties: 1990, 2003
Feb–Jul 1915
6-Month
17.24"
(437.90mm)
15.78"
(400.81mm)
1.46"
(37.09mm)
108th Driest
Driest since:
1934
21st Wettest
Wettest since:
2019
Jan–Jul 1915
7-Month
19.99"
(507.75mm)
18.09"
(459.49mm)
1.90"
(48.26mm)
115th Driest
Driest since:
1934
14th Wettest
Wettest since:
2019
Dec 1914–Jul 1915
8-Month
22.49"
(571.25mm)
20.43"
(518.92mm)
2.06"
(52.33mm)
112th Driest
Driest since:
1931
16th Wettest
Wettest since:
2019
Nov 1914–Jul 1915
9-Month
24.00"
(609.60mm)
22.66"
(575.56mm)
1.34"
(34.04mm)
95th Driest
Driest since:
1934
33rd Wettest
Wettest since:
2019
Oct 1914–Jul 1915
10-Month
26.51"
(673.35mm)
24.83"
(630.68mm)
1.68"
(42.67mm)
100th Driest
Driest since:
1934
28th Wettest
Wettest since:
2019
Sep 1914–Jul 1915
11-Month
28.69"
(728.73mm)
27.33"
(694.18mm)
1.36"
(34.55mm)
93rd Driest
Driest since:
1934
35th Wettest
Wettest since:
2019
Aug 1914–Jul 1915
12-Month
31.86"
(809.24mm)
29.95"
(760.73mm)
1.91"
(48.51mm)
99th Driest
Driest since:
1918
29th Wettest
Wettest since:
2019
Feb 1914–Jul 1915
18-Month
46.30"
(1,176.02mm)
45.74"
(1,161.80mm)
0.56"
(14.22mm)
68th Driest
Driest since:
1931
60th Wettest
Wettest since:
2019
Ties: 1947
Aug 1913–Jul 1915
24-Month
60.97"
(1,548.64mm)
59.92"
(1,521.97mm)
1.05"
(26.67mm)
71st Driest
Driest since:
1918
56th Wettest
Wettest since:
2020
Aug 1912–Jul 1915
36-Month
89.95"
(2,284.73mm)
89.88"
(2,282.95mm)
0.07"
(1.78mm)
57th Driest
Driest since:
1956
69th Wettest
Wettest since:
2019
Aug 1911–Jul 1915
48-Month
122.48"
(3,110.99mm)
119.78"
(3,042.41mm)
2.70"
(68.58mm)
82nd Driest
Driest since:
1956
43rd Wettest
Wettest since:
2019
Aug 1910–Jul 1915
60-Month
148.55"
(3,773.17mm)
149.64"
(3,800.86mm)
-1.09"
(-27.69mm)
49th Driest
Driest since:
1934
75th Wettest
Wettest since:
2019

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