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 2019

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
June 2019
1-Month 		3.37"
(85.60mm)		 2.93"
(74.42mm)		 0.44"
(11.18mm)		 109th Driest
Driest since:
 1933
20th Wettest
Wettest since:
 1928
May–Jun 2019
2-Month 		7.84"
(199.14mm)		 5.84"
(148.34mm)		 2.00"
(50.80mm)		 126th Driest
Driest since:
 1988
3rd Wettest
Wettest since:
 2015
Apr–Jun 2019
3-Month 		11.05"
(280.67mm)		 8.35"
(212.09mm)		 2.70"
(68.58mm)		 127th Driest
Driest since:
 1988
2nd Wettest
Wettest since:
 1957
Mar–Jun 2019
4-Month 		13.29"
(337.57mm)		 10.86"
(275.84mm)		 2.43"
(61.73mm)		 125th Driest
Driest since:
 1988
4th Wettest
Wettest since:
 1957
Feb–Jun 2019
5-Month 		16.57"
(420.88mm)		 13.00"
(330.20mm)		 3.57"
(90.68mm)		 128th Driest
Driest since:
 1988
1st Wettest
Wettest to Date
 2019
Jan–Jun 2019
6-Month 		19.13"
(485.90mm)		 15.31"
(388.87mm)		 3.82"
(97.03mm)		 128th Driest
Driest since:
 1988
1st Wettest
Wettest to Date
 2019
Dec 2018–Jun 2019
7-Month 		22.38"
(568.45mm)		 17.66"
(448.56mm)		 4.72"
(119.89mm)		 127th Driest
Driest since:
 1931
1st Wettest
Wettest to Date
 2019
Nov 2018–Jun 2019
8-Month 		25.09"
(637.29mm)		 19.89"
(505.21mm)		 5.20"
(132.08mm)		 127th Driest
Driest since:
 1934
1st Wettest
Wettest to Date
 2019
Oct 2018–Jun 2019
9-Month 		28.52"
(724.41mm)		 22.05"
(560.07mm)		 6.47"
(164.34mm)		 127th Driest
Driest since:
 1934
1st Wettest
Wettest to Date
 2019
Sep 2018–Jun 2019
10-Month 		32.09"
(815.09mm)		 24.55"
(623.57mm)		 7.54"
(191.52mm)		 127th Driest
Driest since:
 1934
1st Wettest
Wettest to Date
 2019
Aug 2018–Jun 2019
11-Month 		35.07"
(890.78mm)		 27.17"
(690.12mm)		 7.90"
(200.66mm)		 127th Driest
Driest since:
 1918
1st Wettest
Wettest to Date
 2019
Jul 2018–Jun 2019
12-Month 		37.93"
(963.42mm)		 29.96"
(760.98mm)		 7.97"
(202.44mm)		 127th Driest
Driest since:
 1931
1st Wettest
Wettest to Date
 2019
Jan 2018–Jun 2019
18-Month 		53.78"
(1,366.01mm)		 45.27"
(1,149.86mm)		 8.51"
(216.15mm)		 127th Driest
Driest since:
 1931
1st Wettest
Wettest to Date
 2019
Jul 2017–Jun 2019
24-Month 		68.08"
(1,729.23mm)		 59.93"
(1,522.22mm)		 8.15"
(207.01mm)		 124th Driest
Driest since:
 1931
3rd Wettest
Wettest since:
 2020
Jul 2016–Jun 2019
36-Month 		102.07"
(2,592.58mm)		 89.89"
(2,283.21mm)		 12.18"
(309.37mm)		 125th Driest
Driest since:
 1956
1st Wettest
Wettest to Date
 2019
Jul 2015–Jun 2019
48-Month 		135.58"
(3,443.73mm)		 119.79"
(3,042.67mm)		 15.79"
(401.06mm)		 124th Driest
Driest since:
 1956
1st Wettest
Wettest to Date
 2019
Jul 2014–Jun 2019
60-Month 		167.60"
(4,257.04mm)		 149.66"
(3,801.36mm)		 17.94"
(455.68mm)		 122nd Driest
Driest since:
 1934
2nd Wettest
Wettest to Date
 2020

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