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 1997

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
July 1997
1-Month		2.71"
(68.83mm)		2.78"
(70.61mm)		-0.07"
(-1.78mm)		50th Driest
Driest since:
1930
79th Wettest
Wettest since:
1950, 1958
Ties: 1931
Jun–Jul 1997
2-Month		6.11"
(155.19mm)		5.70"
(144.78mm)		0.41"
(10.41mm)		96th Driest
Driest since:
1930
33rd Wettest
Wettest since:
1928
May–Jul 1997
3-Month		8.89"
(225.81mm)		8.62"
(218.95mm)		0.27"
(6.86mm)		72nd Driest
Driest since:
1988
57th Wettest
Wettest since:
2015
Apr–Jul 1997
4-Month		11.88"
(301.75mm)		11.13"
(282.70mm)		0.75"
(19.05mm)		93rd Driest
Driest since:
1934
36th Wettest
Wettest since:
2015
Mar–Jul 1997
5-Month		14.32"
(363.73mm)		13.64"
(346.46mm)		0.68"
(17.27mm)		81st Driest
Driest since:
1936
48th Wettest
Wettest since:
1973
Feb–Jul 1997
6-Month		16.71"
(424.43mm)		15.78"
(400.81mm)		0.93"
(23.62mm)		90th Driest
Driest since:
1934
39th Wettest
Wettest since:
2019
Jan–Jul 1997
7-Month		19.52"
(495.81mm)		18.09"
(459.49mm)		1.43"
(36.32mm)		106th Driest
Driest since:
1934
23rd Wettest
Wettest since:
2019
Dec 1996–Jul 1997
8-Month		22.81"
(579.37mm)		20.44"
(519.18mm)		2.37"
(60.19mm)		118th Driest
Driest since:
1931
10th Wettest
Wettest since:
2019
Nov 1996–Jul 1997
9-Month		25.81"
(655.57mm)		22.66"
(575.56mm)		3.15"
(80.01mm)		121st Driest
Driest since:
1934
7th Wettest
Wettest since:
2019
Oct 1996–Jul 1997
10-Month		28.30"
(718.82mm)		24.83"
(630.68mm)		3.47"
(88.14mm)		119th Driest
Driest since:
1934
9th Wettest
Wettest since:
2019
Sep 1996–Jul 1997
11-Month		31.74"
(806.20mm)		27.33"
(694.18mm)		4.41"
(112.02mm)		125th Driest
Driest since:
1934
3rd Wettest
Wettest since:
2019
Aug 1996–Jul 1997
12-Month		34.40"
(873.76mm)		29.95"
(760.73mm)		4.45"
(113.03mm)		125th Driest
Driest since:
1918
3rd Wettest
Wettest since:
2019
Feb 1996–Jul 1997
18-Month		50.40"
(1,280.16mm)		45.74"
(1,161.80mm)		4.66"
(118.36mm)		121st Driest
Driest since:
1931
7th Wettest
Wettest since:
2019
Aug 1995–Jul 1997
24-Month		65.33"
(1,659.38mm)		59.92"
(1,521.97mm)		5.41"
(137.41mm)		115th Driest
Driest since:
1918
12th Wettest
Wettest since:
2020
Aug 1994–Jul 1997
36-Month		98.54"
(2,502.92mm)		89.88"
(2,282.95mm)		8.66"
(219.97mm)		117th Driest
Driest since:
1956
9th Wettest
Wettest since:
2019
Aug 1993–Jul 1997
48-Month		128.15"
(3,255.01mm)		119.78"
(3,042.41mm)		8.37"
(212.60mm)		113th Driest
Driest since:
1956
12th Wettest
Wettest since:
2019
Aug 1992–Jul 1997
60-Month		162.11"
(4,117.59mm)		149.64"
(3,800.86mm)		12.47"
(316.73mm)		119th Driest
Driest since:
1934
5th Wettest
Wettest to Date
2019

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