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 1900

View Period (Months):
Download: CSV JSON XML
  • Record Driest
  • Bottom ⅒
  • Bottom ⅓
  • Normal
  • Top ⅓
  • Top ⅒
  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
July 1900
1-Month 		3.07"
(77.98mm)		 2.78"
(70.61mm)		 0.29"
(7.37mm)		 105th Driest
Driest since:
 1930
24th Wettest
Wettest since:
 1950, 1958
Ties: 1928, 2009
Jun–Jul 1900
2-Month 		6.10"
(154.94mm)		 5.70"
(144.78mm)		 0.40"
(10.16mm)		 95th Driest
Driest since:
 1930
34th Wettest
Wettest to Date
 1928
May–Jul 1900
3-Month 		8.55"
(217.17mm)		 8.62"
(218.95mm)		 -0.07"
(-1.78mm)		 51st Driest
Driest since:
 1988
78th Wettest
Wettest since:
 2015
Apr–Jul 1900
4-Month 		11.96"
(303.78mm)		 11.13"
(282.70mm)		 0.83"
(21.08mm)		 97th Driest
Driest since:
 1934
32nd Wettest
Wettest to Date
 2015
Ties: 2014
Mar–Jul 1900
5-Month 		14.24"
(361.70mm)		 13.64"
(346.46mm)		 0.60"
(15.24mm)		 79th Driest
Driest since:
 1936
50th Wettest
Wettest to Date
 1973
Ties: 1943
Feb–Jul 1900
6-Month 		16.76"
(425.70mm)		 15.78"
(400.81mm)		 0.98"
(24.89mm)		 95th Driest
Driest since:
 1934
34th Wettest
Wettest since:
 2019
Ties: 1897, 2011
Jan–Jul 1900
7-Month 		18.50"
(469.90mm)		 18.09"
(459.49mm)		 0.41"
(10.41mm)		 75th Driest
Driest since:
 1934
54th Wettest
Wettest since:
 2019
Dec 1899–Jul 1900
8-Month 		20.86"
(529.84mm)		 20.44"
(519.18mm)		 0.42"
(10.66mm)		 71st Driest
Driest since:
 1931
57th Wettest
Wettest to Date
 2019
Ties: 2011
Nov 1899–Jul 1900
9-Month 		22.85"
(580.39mm)		 22.66"
(575.56mm)		 0.19"
(4.83mm)		 64th Driest
Driest since:
 1934
64th Wettest
Wettest since:
 2019
Oct 1899–Jul 1900
10-Month 		25.26"
(641.60mm)		 24.83"
(630.68mm)		 0.43"
(10.92mm)		 71st Driest
Driest since:
 1934
57th Wettest
Wettest since:
 2019
Ties: 1987
Sep 1899–Jul 1900
11-Month 		26.80"
(680.72mm)		 27.33"
(694.18mm)		 -0.53"
(-13.46mm)		 48th Driest
Driest since:
 1934
80th Wettest
Wettest since:
 2019
Aug 1899–Jul 1900
12-Month 		29.06"
(738.12mm)		 29.95"
(760.73mm)		 -0.89"
(-22.61mm)		 40th Driest
Driest since:
 1918
88th Wettest
Wettest since:
 2019
Feb 1899–Jul 1900
18-Month 		44.60"
(1,132.84mm)		 45.74"
(1,161.80mm)		 -1.14"
(-28.96mm)		 41st Driest
Driest since:
 1931
87th Wettest
Wettest since:
 2019
Aug 1898–Jul 1900
24-Month 		59.08"
(1,500.63mm)		 59.92"
(1,521.97mm)		 -0.84"
(-21.34mm)		 52nd Driest
Driest since:
 1918
75th Wettest
Wettest to Date
 2020
Aug 1897–Jul 1900
36-Month 		87.33"
(2,218.18mm)		 89.88"
(2,282.95mm)		 -2.55"
(-64.77mm)		 31st Driest
Driest since:
 1956
95th Wettest
Wettest since:
 2019
Ties: 1967
Aug 1896–Jul 1900
48-Month 		117.98"
(2,996.69mm)		 119.78"
(3,042.41mm)		 -1.80"
(-45.72mm)		 41st Driest
Driest since:
 1956
84th Wettest
Wettest to Date
 2019
Aug 1895–Jul 1900
60-Month 		146.26"
(3,715.00mm)		 149.64"
(3,800.86mm)		 -3.38"
(-85.86mm)		 31st Driest
Driest to Date
 1934
93rd Wettest
Wettest to Date
 2019

Citing This Page