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 1980

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
April 1980 1-Month	2.38" (60.45mm)	2.52" (64.01mm)	-0.14" (-3.56mm)	50th Driest	Driest since: 1977	1987
	2.38" (60.45mm)	2.52" (64.01mm)	-0.14" (-3.56mm)	79th Wettest	Wettest since: 1979	1957
	Ties: 2010
Mar–Apr 1980 2-Month	5.77" (146.56mm)	5.03" (127.76mm)	0.74" (18.80mm)	109th Driest	Driest since: 1978	1910
	5.77" (146.56mm)	5.03" (127.76mm)	0.74" (18.80mm)	20th Wettest	Wettest since: 1979	1973
	Ties: 1993
Feb–Apr 1980 3-Month	7.69" (195.33mm)	7.16" (181.86mm)	0.53" (13.47mm)	95th Driest	Driest since: 1978	1910
	7.69" (195.33mm)	7.16" (181.86mm)	0.53" (13.47mm)	34th Wettest	Wettest since: 1979	1983
	Ties: 1920
Jan–Apr 1980 4-Month	10.34" (262.64mm)	9.48" (240.79mm)	0.86" (21.85mm)	106th Driest	Driest since: 1978	1910
Jan–Apr 1980 4-Month	10.34" (262.64mm)	9.48" (240.79mm)	0.86" (21.85mm)	23rd Wettest	Wettest since: 1979	1998
Dec 1979–Apr 1980 5-Month	12.20" (309.88mm)	11.82" (300.23mm)	0.38" (9.65mm)	83rd Driest	Driest since: 1977	1931
Dec 1979–Apr 1980 5-Month	12.20" (309.88mm)	11.82" (300.23mm)	0.38" (9.65mm)	45th Wettest	Wettest since: 1979	1983
Nov 1979–Apr 1980 6-Month	14.54" (369.32mm)	14.05" (356.87mm)	0.49" (12.45mm)	89th Driest	Driest since: 1977	1977
Nov 1979–Apr 1980 6-Month	14.54" (369.32mm)	14.05" (356.87mm)	0.49" (12.45mm)	39th Wettest	Wettest since: 1979	1983
Oct 1979–Apr 1980 7-Month	16.74" (425.20mm)	16.22" (411.99mm)	0.52" (13.21mm)	86th Driest	Driest since: 1977	1981
Oct 1979–Apr 1980 7-Month	16.74" (425.20mm)	16.22" (411.99mm)	0.52" (13.21mm)	42nd Wettest	Wettest since: 1979	1983
Sep 1979–Apr 1980 8-Month	19.25" (488.95mm)	18.71" (475.23mm)	0.54" (13.72mm)	81st Driest	Driest since: 1977	1918
Sep 1979–Apr 1980 8-Month	19.25" (488.95mm)	18.71" (475.23mm)	0.54" (13.72mm)	47th Wettest	Wettest since: 1979	2019
Aug 1979–Apr 1980 9-Month	22.24" (564.90mm)	21.33" (541.78mm)	0.91" (23.12mm)	89th Driest	Driest since: 1977	1918
Aug 1979–Apr 1980 9-Month	22.24" (564.90mm)	21.33" (541.78mm)	0.91" (23.12mm)	39th Wettest	Wettest since: 1979	2019
Jul 1979–Apr 1980 10-Month	25.54" (648.72mm)	24.12" (612.65mm)	1.42" (36.07mm)	97th Driest	Driest since: 1977	1931
	25.54" (648.72mm)	24.12" (612.65mm)	1.42" (36.07mm)	31st Wettest	Wettest since: 1979	2019
	Ties: 1987
Jun 1979–Apr 1980 11-Month	28.08" (713.23mm)	27.04" (686.82mm)	1.04" (26.41mm)	90th Driest	Driest since: 1977	1931
Jun 1979–Apr 1980 11-Month	28.08" (713.23mm)	27.04" (686.82mm)	1.04" (26.41mm)	38th Wettest	Wettest since: 1979	2019
May 1979–Apr 1980 12-Month	31.31" (795.27mm)	29.95" (760.73mm)	1.36" (34.54mm)	93rd Driest	Driest since: 1977	1918
May 1979–Apr 1980 12-Month	31.31" (795.27mm)	29.95" (760.73mm)	1.36" (34.54mm)	35th Wettest	Wettest since: 1979	2019
Nov 1978–Apr 1980 18-Month	48.22" (1,224.79mm)	44.02" (1,118.11mm)	4.20" (106.68mm)	114th Driest	Driest since: 1979	1931
Nov 1978–Apr 1980 18-Month	48.22" (1,224.79mm)	44.02" (1,118.11mm)	4.20" (106.68mm)	13th Wettest	Wettest since: 1974	2020
May 1978–Apr 1980 24-Month	63.48" (1,612.39mm)	59.92" (1,521.97mm)	3.56" (90.42mm)	105th Driest	Driest since: 1978	1955
May 1978–Apr 1980 24-Month	63.48" (1,612.39mm)	59.92" (1,521.97mm)	3.56" (90.42mm)	22nd Wettest	Wettest since: 1979	2020
May 1977–Apr 1980 36-Month	95.49" (2,425.45mm)	89.88" (2,282.95mm)	5.61" (142.50mm)	109th Driest	Driest since: 1979	1955
May 1977–Apr 1980 36-Month	95.49" (2,425.45mm)	89.88" (2,282.95mm)	5.61" (142.50mm)	17th Wettest	Wettest since: 1975	2020
May 1976–Apr 1980 48-Month	121.47" (3,085.34mm)	119.77" (3,042.16mm)	1.70" (43.18mm)	74th Driest	Driest since: 1979	1956
	121.47" (3,085.34mm)	119.77" (3,042.16mm)	1.70" (43.18mm)	51st Wettest	Wettest since: 1976	2019
	Ties: 1982
May 1975–Apr 1980 60-Month	151.72" (3,853.69mm)	149.63" (3,800.60mm)	2.09" (53.09mm)	69th Driest	Driest since: 1972	1957
May 1975–Apr 1980 60-Month	151.72" (3,853.69mm)	149.63" (3,800.60mm)	2.09" (53.09mm)	55th Wettest	Wettest since: 1979	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published March 2023, retrieved on March 23, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings