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 2003

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  • Record Wettest
PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Wettest/Driest
Since
Record
July 2003
1-Month
2.64"
(67.06mm)
2.78"
(70.61mm)
-0.14"
(-3.55mm)
37th Driest
Driest since:
1930
92nd Wettest
Wettest since:
1950, 1958
Ties: 1913
Jun–Jul 2003
2-Month
6.09"
(154.69mm)
5.70"
(144.78mm)
0.39"
(9.91mm)
94th Driest
Driest since:
1930
35th Wettest
Wettest since:
1928
May–Jul 2003
3-Month
9.36"
(237.74mm)
8.62"
(218.95mm)
0.74"
(18.79mm)
103rd Driest
Driest since:
1988
26th Wettest
Wettest since:
2015
Ties: 2021
Apr–Jul 2003
4-Month
11.99"
(304.55mm)
11.13"
(282.70mm)
0.86"
(21.85mm)
100th Driest
Driest since:
1934
29th Wettest
Wettest since:
2015
Mar–Jul 2003
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: 1915, 1990
Feb–Jul 2003
6-Month
17.04"
(432.82mm)
15.78"
(400.81mm)
1.26"
(32.01mm)
103rd Driest
Driest since:
1934
26th Wettest
Wettest since:
2019
Jan–Jul 2003
7-Month
18.37"
(466.60mm)
18.09"
(459.49mm)
0.28"
(7.11mm)
73rd Driest
Driest since:
1934
56th Wettest
Wettest since:
2019
Dec 2002–Jul 2003
8-Month
21.37"
(542.80mm)
20.44"
(519.18mm)
0.93"
(23.62mm)
86th Driest
Driest since:
1931
42nd Wettest
Wettest since:
2019
Nov 2002–Jul 2003
9-Month
23.31"
(592.07mm)
22.66"
(575.56mm)
0.65"
(16.51mm)
76th Driest
Driest since:
1934
52nd Wettest
Wettest since:
2019
Oct 2002–Jul 2003
10-Month
26.32"
(668.53mm)
24.83"
(630.68mm)
1.49"
(37.85mm)
94th Driest
Driest since:
1934
34th Wettest
Wettest since:
2019
Ties: 1942
Sep 2002–Jul 2003
11-Month
29.04"
(737.62mm)
27.33"
(694.18mm)
1.71"
(43.44mm)
97th Driest
Driest since:
1934
31st Wettest
Wettest since:
2019
Aug 2002–Jul 2003
12-Month
31.44"
(798.58mm)
29.95"
(760.73mm)
1.49"
(37.85mm)
92nd Driest
Driest since:
1918
36th Wettest
Wettest since:
2019
Feb 2002–Jul 2003
18-Month
45.41"
(1,153.41mm)
45.74"
(1,161.80mm)
-0.33"
(-8.39mm)
52nd Driest
Driest since:
1931
76th Wettest
Wettest since:
2019
Ties: 1901
Aug 2001–Jul 2003
24-Month
59.09"
(1,500.89mm)
59.92"
(1,521.97mm)
-0.83"
(-21.08mm)
53rd Driest
Driest since:
1918
74th Wettest
Wettest since:
2020
Aug 2000–Jul 2003
36-Month
87.23"
(2,215.64mm)
89.88"
(2,282.95mm)
-2.65"
(-67.31mm)
28th Driest
Driest since:
1956
98th Wettest
Wettest since:
2019
Aug 1999–Jul 2003
48-Month
114.22"
(2,901.19mm)
119.78"
(3,042.41mm)
-5.56"
(-141.22mm)
14th Driest
Driest since:
1956
111th Wettest
Wettest since:
2019
Aug 1998–Jul 2003
60-Month
145.74"
(3,701.80mm)
149.64"
(3,800.86mm)
-3.90"
(-99.06mm)
30th Driest
Driest since:
1934
94th Wettest
Wettest since:
2019

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