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

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  • Record Wettest
PeriodValue1901-2000
Mean
AnomalyRank
(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

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