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, June 2017

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
June 2017
1-Month		3.07"
(77.98mm)		2.93"
(74.42mm)		0.14"
(3.56mm)		78th Driest
Driest since:
1933
51st Wettest
Wettest since:
1928
Ties: 1898
May–Jun 2017
2-Month		6.43"
(163.32mm)		5.84"
(148.34mm)		0.59"
(14.98mm)		100th Driest
Driest since:
1988
29th Wettest
Wettest since:
2015
Ties: 1923
Apr–Jun 2017
3-Month		9.93"
(252.22mm)		8.35"
(212.09mm)		1.58"
(40.13mm)		123rd Driest
Driest since:
1988
6th Wettest
Wettest since:
1957
Mar–Jun 2017
4-Month		12.52"
(318.01mm)		10.86"
(275.84mm)		1.66"
(42.17mm)		119th Driest
Driest since:
1988
10th Wettest
Wettest since:
1957
Feb–Jun 2017
5-Month		14.77"
(375.16mm)		13.00"
(330.20mm)		1.77"
(44.96mm)		116th Driest
Driest since:
1988
13th Wettest
Wettest since:
2019
Jan–Jun 2017
6-Month		18.01"
(457.45mm)		15.31"
(388.87mm)		2.70"
(68.58mm)		124th Driest
Driest since:
1988
5th Wettest
Wettest since:
2019
Dec 2016–Jun 2017
7-Month		20.73"
(526.54mm)		17.66"
(448.56mm)		3.07"
(77.98mm)		124th Driest
Driest since:
1931
4th Wettest
Wettest since:
2019
Ties: 1998
Nov 2016–Jun 2017
8-Month		22.48"
(570.99mm)		19.89"
(505.21mm)		2.59"
(65.78mm)		117th Driest
Driest since:
1934
11th Wettest
Wettest since:
2019
Ties: 1975
Oct 2016–Jun 2017
9-Month		24.87"
(631.70mm)		22.05"
(560.07mm)		2.82"
(71.63mm)		117th Driest
Driest since:
1934
11th Wettest
Wettest since:
2019
Sep 2016–Jun 2017
10-Month		27.60"
(701.04mm)		24.55"
(623.57mm)		3.05"
(77.47mm)		117th Driest
Driest since:
1934
11th Wettest
Wettest since:
2019
Aug 2016–Jun 2017
11-Month		31.07"
(789.18mm)		27.17"
(690.12mm)		3.90"
(99.06mm)		123rd Driest
Driest since:
1918
5th Wettest
Wettest since:
2019
Jul 2016–Jun 2017
12-Month		33.99"
(863.35mm)		29.96"
(760.98mm)		4.03"
(102.37mm)		122nd Driest
Driest since:
1931
6th Wettest
Wettest since:
2019
Jan 2016–Jun 2017
18-Month		49.43"
(1,255.52mm)		45.27"
(1,149.86mm)		4.16"
(105.66mm)		116th Driest
Driest since:
1931
12th Wettest
Wettest since:
2019
Jul 2015–Jun 2017
24-Month		67.50"
(1,714.50mm)		59.93"
(1,522.22mm)		7.57"
(192.28mm)		122nd Driest
Driest since:
1931
5th Wettest
Wettest since:
2020
Jul 2014–Jun 2017
36-Month		99.52"
(2,527.81mm)		89.89"
(2,283.21mm)		9.63"
(244.60mm)		121st Driest
Driest since:
1956
5th Wettest
Wettest since:
2019
Jul 2013–Jun 2017
48-Month		130.23"
(3,307.84mm)		119.79"
(3,042.67mm)		10.44"
(265.17mm)		119th Driest
Driest since:
1956
6th Wettest
Wettest since:
2019
Jul 2012–Jun 2017
60-Month		159.68"
(4,055.87mm)		149.66"
(3,801.36mm)		10.02"
(254.51mm)		112th Driest
Driest since:
1934
12th Wettest
Wettest since:
2020

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