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, March 1998

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
March 1998
1-Month 		3.23"
(82.04mm)		 2.51"
(63.75mm)		 0.72"
(18.29mm)		 118th Driest
Driest since:
 1910
11th Wettest
Wettest since:
 1973
Feb–Mar 1998
2-Month 		6.55"
(166.37mm)		 4.64"
(117.86mm)		 1.91"
(48.51mm)		 128th Driest
Driest since:
 1910
1st Wettest
Wettest to Date
 1998
Jan–Mar 1998
3-Month 		9.91"
(251.71mm)		 6.96"
(176.78mm)		 2.95"
(74.93mm)		 128th Driest
Driest since:
 1910
1st Wettest
Wettest to Date
 1998
Dec 1997–Mar 1998
4-Month 		12.22"
(310.39mm)		 9.30"
(236.22mm)		 2.92"
(74.17mm)		 127th Driest
Driest since:
 1981
1st Wettest
Wettest since:
 1983, 1998
Ties: 1983
Nov 1997–Mar 1998
5-Month 		14.51"
(368.55mm)		 11.53"
(292.86mm)		 2.98"
(75.69mm)		 126th Driest
Driest since:
 1977
2nd Wettest
Wettest since:
 1983
Ties: 1973
Oct 1997–Mar 1998
6-Month 		17.03"
(432.56mm)		 13.70"
(347.98mm)		 3.33"
(84.58mm)		 123rd Driest
Driest since:
 1918
5th Wettest
Wettest since:
 1983
Sep 1997–Mar 1998
7-Month 		19.57"
(497.08mm)		 16.19"
(411.23mm)		 3.38"
(85.85mm)		 123rd Driest
Driest since:
 1918
5th Wettest
Wettest since:
 2019
Aug 1997–Mar 1998
8-Month 		22.25"
(565.15mm)		 18.82"
(478.03mm)		 3.43"
(87.12mm)		 123rd Driest
Driest since:
 1918
5th Wettest
Wettest since:
 2019
Jul 1997–Mar 1998
9-Month 		24.96"
(633.98mm)		 21.60"
(548.64mm)		 3.36"
(85.34mm)		 123rd Driest
Driest since:
 1918
5th Wettest
Wettest since:
 2019
Ties: 2016
Jun 1997–Mar 1998
10-Month 		28.36"
(720.34mm)		 24.53"
(623.06mm)		 3.83"
(97.28mm)		 122nd Driest
Driest since:
 1918
6th Wettest
Wettest since:
 2019
May 1997–Mar 1998
11-Month 		31.14"
(790.96mm)		 27.43"
(696.72mm)		 3.71"
(94.24mm)		 120th Driest
Driest since:
 1918
8th Wettest
Wettest since:
 2019
Apr 1997–Mar 1998
12-Month 		34.13"
(866.90mm)		 29.96"
(760.98mm)		 4.17"
(105.92mm)		 121st Driest
Driest since:
 1918
7th Wettest
Wettest since:
 2016
Oct 1996–Mar 1998
18-Month 		50.55"
(1,283.97mm)		 43.68"
(1,109.47mm)		 6.87"
(174.50mm)		 124th Driest
Driest since:
 1918
3rd Wettest
Wettest since:
 2020
Apr 1996–Mar 1998
24-Month 		68.52"
(1,740.41mm)		 59.92"
(1,521.97mm)		 8.60"
(218.44mm)		 125th Driest
Driest since:
 1955
2nd Wettest
Wettest to Date
 2020
Apr 1995–Mar 1998
36-Month 		100.39"
(2,549.91mm)		 89.87"
(2,282.70mm)		 10.52"
(267.21mm)		 124th Driest
Driest since:
 1955
2nd Wettest
Wettest to Date
 2020
Apr 1994–Mar 1998
48-Month 		132.03"
(3,353.56mm)		 119.76"
(3,041.90mm)		 12.27"
(311.66mm)		 122nd Driest
Driest since:
 1957
3rd Wettest
Wettest to Date
 2019
Apr 1993–Mar 1998
60-Month 		163.17"
(4,144.52mm)		 149.62"
(3,800.35mm)		 13.55"
(344.17mm)		 119th Driest
Driest since:
 1957
5th Wettest
Wettest to Date
 2020

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