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 2017

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
March 2017
1-Month		2.59"
(65.79mm)		2.51"
(63.75mm)		0.08"
(2.04mm)		81st Driest
Driest since:
1910
48th Wettest
Wettest since:
1973
Ties: 1927, 2002
Feb–Mar 2017
2-Month		4.84"
(122.94mm)		4.64"
(117.86mm)		0.20"
(5.08mm)		84th Driest
Driest since:
1910
45th Wettest
Wettest since:
1998
Jan–Mar 2017
3-Month		8.08"
(205.23mm)		6.96"
(176.78mm)		1.12"
(28.45mm)		119th Driest
Driest since:
1910
10th Wettest
Wettest since:
1998
Ties: 1950, 2019
Dec 2016–Mar 2017
4-Month		10.80"
(274.32mm)		9.30"
(236.22mm)		1.50"
(38.10mm)		115th Driest
Driest since:
1981
13th Wettest
Wettest since:
1983, 1998
Nov 2016–Mar 2017
5-Month		12.55"
(318.77mm)		11.53"
(292.86mm)		1.02"
(25.91mm)		104th Driest
Driest since:
1977
24th Wettest
Wettest since:
1983
Oct 2016–Mar 2017
6-Month		14.94"
(379.48mm)		13.70"
(347.98mm)		1.24"
(31.50mm)		100th Driest
Driest since:
1918
28th Wettest
Wettest since:
1983
Sep 2016–Mar 2017
7-Month		17.67"
(448.82mm)		16.19"
(411.23mm)		1.48"
(37.59mm)		106th Driest
Driest since:
1918
22nd Wettest
Wettest since:
2019
Ties: 1932
Aug 2016–Mar 2017
8-Month		21.14"
(536.96mm)		18.82"
(478.03mm)		2.32"
(58.93mm)		112th Driest
Driest since:
1918
16th Wettest
Wettest since:
2019
Jul 2016–Mar 2017
9-Month		24.06"
(611.12mm)		21.60"
(548.64mm)		2.46"
(62.48mm)		112th Driest
Driest since:
1918
16th Wettest
Wettest since:
2019
Jun 2016–Mar 2017
10-Month		26.54"
(674.12mm)		24.53"
(623.06mm)		2.01"
(51.06mm)		106th Driest
Driest since:
1918
22nd Wettest
Wettest since:
2019
May 2016–Mar 2017
11-Month		29.61"
(752.09mm)		27.43"
(696.72mm)		2.18"
(55.37mm)		108th Driest
Driest since:
1918
20th Wettest
Wettest since:
2019
Apr 2016–Mar 2017
12-Month		32.61"
(828.29mm)		29.96"
(760.98mm)		2.65"
(67.31mm)		112th Driest
Driest since:
1918
16th Wettest
Wettest since:
2016
Oct 2015–Mar 2017
18-Month		49.81"
(1,265.17mm)		43.68"
(1,109.47mm)		6.13"
(155.70mm)		121st Driest
Driest since:
1918
6th Wettest
Wettest since:
2020
Apr 2015–Mar 2017
24-Month		68.39"
(1,737.11mm)		59.92"
(1,521.97mm)		8.47"
(215.14mm)		124th Driest
Driest since:
1955
3rd Wettest
Wettest since:
2020
Apr 2014–Mar 2017
36-Month		98.95"
(2,513.33mm)		89.87"
(2,282.70mm)		9.08"
(230.63mm)		117th Driest
Driest since:
1955
9th Wettest
Wettest since:
2020
Apr 2013–Mar 2017
48-Month		129.89"
(3,299.21mm)		119.76"
(3,041.90mm)		10.13"
(257.31mm)		116th Driest
Driest since:
1957
9th Wettest
Wettest since:
2019
Apr 2012–Mar 2017
60-Month		156.72"
(3,980.69mm)		149.62"
(3,800.35mm)		7.10"
(180.34mm)		105th Driest
Driest since:
1957
19th Wettest
Wettest since:
2020

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