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 2013

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 2013
1-Month 		3.34"
(84.84mm)		 2.78"
(70.61mm)		 0.56"
(14.23mm)		 122nd Driest
Driest since:
 1930
7th Wettest
Wettest since:
 1950, 1958
Ties: 1938
Jun–Jul 2013
2-Month 		6.68"
(169.67mm)		 5.70"
(144.78mm)		 0.98"
(24.89mm)		 119th Driest
Driest since:
 1930
10th Wettest
Wettest since:
 1928
May–Jul 2013
3-Month 		10.03"
(254.76mm)		 8.62"
(218.95mm)		 1.41"
(35.81mm)		 120th Driest
Driest since:
 1988
9th Wettest
Wettest since:
 2015
Apr–Jul 2013
4-Month 		12.93"
(328.42mm)		 11.13"
(282.70mm)		 1.80"
(45.72mm)		 123rd Driest
Driest since:
 1934
6th Wettest
Wettest since:
 2015
Mar–Jul 2013
5-Month 		14.65"
(372.11mm)		 13.64"
(346.46mm)		 1.01"
(25.65mm)		 102nd Driest
Driest since:
 1936
27th Wettest
Wettest since:
 1973
Ties: 1944
Feb–Jul 2013
6-Month 		16.67"
(423.42mm)		 15.78"
(400.81mm)		 0.89"
(22.61mm)		 89th Driest
Driest since:
 1934
40th Wettest
Wettest since:
 2019
Ties: 1909
Jan–Jul 2013
7-Month 		19.04"
(483.62mm)		 18.09"
(459.49mm)		 0.95"
(24.13mm)		 92nd Driest
Driest since:
 1934
37th Wettest
Wettest since:
 2019
Dec 2012–Jul 2013
8-Month 		21.92"
(556.77mm)		 20.44"
(519.18mm)		 1.48"
(37.59mm)		 101st Driest
Driest since:
 1931
27th Wettest
Wettest since:
 2019
Ties: 1950, 2020
Nov 2012–Jul 2013
9-Month 		23.24"
(590.30mm)		 22.66"
(575.56mm)		 0.58"
(14.74mm)		 75th Driest
Driest since:
 1934
53rd Wettest
Wettest since:
 2019
Oct 2012–Jul 2013
10-Month 		25.47"
(646.94mm)		 24.83"
(630.68mm)		 0.64"
(16.26mm)		 74th Driest
Driest since:
 1934
54th Wettest
Wettest since:
 2019
Sep 2012–Jul 2013
11-Month 		27.81"
(706.37mm)		 27.33"
(694.18mm)		 0.48"
(12.19mm)		 68th Driest
Driest since:
 1934
60th Wettest
Wettest since:
 2019
Aug 2012–Jul 2013
12-Month 		30.28"
(769.11mm)		 29.95"
(760.73mm)		 0.33"
(8.38mm)		 61st Driest
Driest since:
 1918
67th Wettest
Wettest since:
 2019
Feb 2012–Jul 2013
18-Month 		44.48"
(1,129.79mm)		 45.74"
(1,161.80mm)		 -1.26"
(-32.01mm)		 38th Driest
Driest since:
 1931
90th Wettest
Wettest since:
 2019
Aug 2011–Jul 2013
24-Month 		58.26"
(1,479.80mm)		 59.92"
(1,521.97mm)		 -1.66"
(-42.17mm)		 38th Driest
Driest since:
 1918
89th Wettest
Wettest since:
 2020
Aug 2010–Jul 2013
36-Month 		88.60"
(2,250.44mm)		 89.88"
(2,282.95mm)		 -1.28"
(-32.51mm)		 46th Driest
Driest since:
 1956
80th Wettest
Wettest since:
 2019
Aug 2009–Jul 2013
48-Month 		122.27"
(3,105.66mm)		 119.78"
(3,042.41mm)		 2.49"
(63.25mm)		 81st Driest
Driest since:
 1956
44th Wettest
Wettest since:
 2019
Aug 2008–Jul 2013
60-Month 		153.04"
(3,887.22mm)		 149.64"
(3,800.86mm)		 3.40"
(86.36mm)		 81st Driest
Driest since:
 1934
43rd Wettest
Wettest since:
 2019

Citing This Page