National Rankings

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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, April 1972

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
April 1972 1-Month	2.26" (57.40mm)	2.52" (64.01mm)	-0.26" (-6.61mm)	37th Driest	Driest since: 1971	1987
	2.26" (57.40mm)	2.52" (64.01mm)	-0.26" (-6.61mm)	92nd Wettest	Wettest since: 1970	1957
	Ties: 1924, 2002
Mar–Apr 1972 2-Month	4.39" (111.51mm)	5.03" (127.76mm)	-0.64" (-16.25mm)	21st Driest	Driest since: 1971	1910
Mar–Apr 1972 2-Month	4.39" (111.51mm)	5.03" (127.76mm)	-0.64" (-16.25mm)	108th Wettest	Wettest since: 1970	1973
Feb–Apr 1972 3-Month	6.19" (157.23mm)	7.16" (181.86mm)	-0.97" (-24.63mm)	13th Driest	Driest since: 1968	1910
Feb–Apr 1972 3-Month	6.19" (157.23mm)	7.16" (181.86mm)	-0.97" (-24.63mm)	116th Wettest	Wettest since: 1971	1983
Jan–Apr 1972 4-Month	8.52" (216.41mm)	9.48" (240.79mm)	-0.96" (-24.38mm)	22nd Driest	Driest since: 1971	1910
	8.52" (216.41mm)	9.48" (240.79mm)	-0.96" (-24.38mm)	107th Wettest	Wettest since: 1970	1998
	Ties: 1898
Dec 1971–Apr 1972 5-Month	11.72" (297.69mm)	11.82" (300.23mm)	-0.10" (-2.54mm)	62nd Driest	Driest since: 1971	1931
Dec 1971–Apr 1972 5-Month	11.72" (297.69mm)	11.82" (300.23mm)	-0.10" (-2.54mm)	66th Wettest	Wettest since: 1970	1983
Nov 1971–Apr 1972 6-Month	13.75" (349.25mm)	14.05" (356.87mm)	-0.30" (-7.62mm)	60th Driest	Driest since: 1971	1977
Nov 1971–Apr 1972 6-Month	13.75" (349.25mm)	14.05" (356.87mm)	-0.30" (-7.62mm)	68th Wettest	Wettest since: 1969	1983
Oct 1971–Apr 1972 7-Month	16.48" (418.59mm)	16.22" (411.99mm)	0.26" (6.60mm)	78th Driest	Driest since: 1971	1981
	16.48" (418.59mm)	16.22" (411.99mm)	0.26" (6.60mm)	50th Wettest	Wettest since: 1969	1983
	Ties: 1947
Sep 1971–Apr 1972 8-Month	19.31" (490.47mm)	18.71" (475.23mm)	0.60" (15.24mm)	84th Driest	Driest since: 1971	1918
	19.31" (490.47mm)	18.71" (475.23mm)	0.60" (15.24mm)	44th Wettest	Wettest since: 1969	2019
	Ties: 1946
Aug 1971–Apr 1972 9-Month	22.06" (560.32mm)	21.33" (541.78mm)	0.73" (18.54mm)	84th Driest	Driest since: 1971	1918
Aug 1971–Apr 1972 9-Month	22.06" (560.32mm)	21.33" (541.78mm)	0.73" (18.54mm)	44th Wettest	Wettest since: 1969	2019
Jul 1971–Apr 1972 10-Month	25.06" (636.52mm)	24.12" (612.65mm)	0.94" (23.87mm)	89th Driest	Driest since: 1971	1931
Jul 1971–Apr 1972 10-Month	25.06" (636.52mm)	24.12" (612.65mm)	0.94" (23.87mm)	39th Wettest	Wettest since: 1969	2019
Jun 1971–Apr 1972 11-Month	27.59" (700.79mm)	27.04" (686.82mm)	0.55" (13.97mm)	78th Driest	Driest since: 1971	1931
Jun 1971–Apr 1972 11-Month	27.59" (700.79mm)	27.04" (686.82mm)	0.55" (13.97mm)	50th Wettest	Wettest since: 1969	2019
May 1971–Apr 1972 12-Month	30.51" (774.95mm)	29.95" (760.73mm)	0.56" (14.22mm)	75th Driest	Driest since: 1971	1918
	30.51" (774.95mm)	29.95" (760.73mm)	0.56" (14.22mm)	53rd Wettest	Wettest since: 1969	2019
	Ties: 2015
Nov 1970–Apr 1972 18-Month	43.27" (1,099.06mm)	44.02" (1,118.11mm)	-0.75" (-19.05mm)	46th Driest	Driest since: 1971	1931
Nov 1970–Apr 1972 18-Month	43.27" (1,099.06mm)	44.02" (1,118.11mm)	-0.75" (-19.05mm)	81st Wettest	Wettest since: 1970	2020
May 1970–Apr 1972 24-Month	59.37" (1,508.00mm)	59.92" (1,521.97mm)	-0.55" (-13.97mm)	54th Driest	Driest since: 1971	1955
May 1970–Apr 1972 24-Month	59.37" (1,508.00mm)	59.92" (1,521.97mm)	-0.55" (-13.97mm)	73rd Wettest	Wettest since: 1970	2020
May 1969–Apr 1972 36-Month	89.45" (2,272.03mm)	89.88" (2,282.95mm)	-0.43" (-10.92mm)	59th Driest	Driest since: 1969	1955
	89.45" (2,272.03mm)	89.88" (2,282.95mm)	-0.43" (-10.92mm)	67th Wettest	Wettest since: 1971	2020
	Ties: 1905
May 1968–Apr 1972 48-Month	121.30" (3,081.02mm)	119.77" (3,042.16mm)	1.53" (38.86mm)	70th Driest	Driest since: 1971	1956
May 1968–Apr 1972 48-Month	121.30" (3,081.02mm)	119.77" (3,042.16mm)	1.53" (38.86mm)	55th Wettest	Wettest since: 1961	2019
May 1967–Apr 1972 60-Month	151.01" (3,835.65mm)	149.63" (3,800.60mm)	1.38" (35.05mm)	67th Driest	Driest since: 1971	1957
May 1967–Apr 1972 60-Month	151.01" (3,835.65mm)	149.63" (3,800.60mm)	1.38" (35.05mm)	57th Wettest	Wettest since: 1962	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published March 2023, retrieved on March 21, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings