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 1981

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
April 1981 1-Month	2.19" (55.63mm)	2.52" (64.01mm)	-0.33" (-8.38mm)	34th Driest	Driest since: 1971	1987
April 1981 1-Month	2.19" (55.63mm)	2.52" (64.01mm)	-0.33" (-8.38mm)	95th Wettest	Wettest since: 1980	1957
Mar–Apr 1981 2-Month	4.40" (111.76mm)	5.03" (127.76mm)	-0.63" (-16.00mm)	22nd Driest	Driest since: 1972	1910
Mar–Apr 1981 2-Month	4.40" (111.76mm)	5.03" (127.76mm)	-0.63" (-16.00mm)	107th Wettest	Wettest since: 1980	1973
Feb–Apr 1981 3-Month	6.57" (166.88mm)	7.16" (181.86mm)	-0.59" (-14.98mm)	29th Driest	Driest since: 1978	1910
	6.57" (166.88mm)	7.16" (181.86mm)	-0.59" (-14.98mm)	100th Wettest	Wettest since: 1980	1983
	Ties: 1978
Jan–Apr 1981 4-Month	7.55" (191.77mm)	9.47" (240.54mm)	-1.92" (-48.77mm)	2nd Driest	Driest since: 1910	1910
Jan–Apr 1981 4-Month	7.55" (191.77mm)	9.47" (240.54mm)	-1.92" (-48.77mm)	127th Wettest	Wettest since: 1980	1998
Dec 1980–Apr 1981 5-Month	9.12" (231.65mm)	11.82" (300.23mm)	-2.70" (-68.58mm)	2nd Driest	Driest since: 1931	1931
Dec 1980–Apr 1981 5-Month	9.12" (231.65mm)	11.82" (300.23mm)	-2.70" (-68.58mm)	126th Wettest	Wettest since: 1980	1983
Nov 1980–Apr 1981 6-Month	10.88" (276.35mm)	14.05" (356.87mm)	-3.17" (-80.52mm)	2nd Driest	Driest since: 1977	1977
Nov 1980–Apr 1981 6-Month	10.88" (276.35mm)	14.05" (356.87mm)	-3.17" (-80.52mm)	126th Wettest	Wettest since: 1980	1983
Oct 1980–Apr 1981 7-Month	12.75" (323.85mm)	16.22" (411.99mm)	-3.47" (-88.14mm)	1st Driest	Driest since: 1981	1981
Oct 1980–Apr 1981 7-Month	12.75" (323.85mm)	16.22" (411.99mm)	-3.47" (-88.14mm)	127th Wettest	Wettest since: 1980	1983
Sep 1980–Apr 1981 8-Month	15.54" (394.72mm)	18.71" (475.23mm)	-3.17" (-80.51mm)	3rd Driest	Driest since: 1977	1918
	15.54" (394.72mm)	18.71" (475.23mm)	-3.17" (-80.51mm)	125th Wettest	Wettest since: 1980	2019
	Ties: 1977
Aug 1980–Apr 1981 9-Month	18.11" (459.99mm)	21.33" (541.78mm)	-3.22" (-81.79mm)	4th Driest	Driest since: 1977	1918
Aug 1980–Apr 1981 9-Month	18.11" (459.99mm)	21.33" (541.78mm)	-3.22" (-81.79mm)	124th Wettest	Wettest since: 1980	2019
Jul 1980–Apr 1981 10-Month	20.08" (510.03mm)	24.12" (612.65mm)	-4.04" (-102.62mm)	3rd Driest	Driest since: 1931	1931
Jul 1980–Apr 1981 10-Month	20.08" (510.03mm)	24.12" (612.65mm)	-4.04" (-102.62mm)	125th Wettest	Wettest since: 1980	2019
Jun 1980–Apr 1981 11-Month	22.39" (568.71mm)	27.04" (686.82mm)	-4.65" (-118.11mm)	3rd Driest	Driest since: 1931	1931
Jun 1980–Apr 1981 11-Month	22.39" (568.71mm)	27.04" (686.82mm)	-4.65" (-118.11mm)	125th Wettest	Wettest since: 1980	2019
May 1980–Apr 1981 12-Month	25.48" (647.19mm)	29.95" (760.73mm)	-4.47" (-113.54mm)	3rd Driest	Driest since: 1931	1918
May 1980–Apr 1981 12-Month	25.48" (647.19mm)	29.95" (760.73mm)	-4.47" (-113.54mm)	125th Wettest	Wettest since: 1980	2019
Nov 1979–Apr 1981 18-Month	40.02" (1,016.51mm)	44.02" (1,118.11mm)	-4.00" (-101.60mm)	12th Driest	Driest since: 1977	1931
	40.02" (1,016.51mm)	44.02" (1,118.11mm)	-4.00" (-101.60mm)	115th Wettest	Wettest since: 1980	2020
	Ties: 1934
May 1979–Apr 1981 24-Month	56.79" (1,442.47mm)	59.92" (1,521.97mm)	-3.13" (-79.50mm)	24th Driest	Driest since: 1977	1955
May 1979–Apr 1981 24-Month	56.79" (1,442.47mm)	59.92" (1,521.97mm)	-3.13" (-79.50mm)	103rd Wettest	Wettest since: 1980	2020
May 1978–Apr 1981 36-Month	88.96" (2,259.58mm)	89.88" (2,282.95mm)	-0.92" (-23.37mm)	51st Driest	Driest since: 1978	1955
May 1978–Apr 1981 36-Month	88.96" (2,259.58mm)	89.88" (2,282.95mm)	-0.92" (-23.37mm)	75th Wettest	Wettest since: 1980	2020
May 1977–Apr 1981 48-Month	120.97" (3,072.64mm)	119.77" (3,042.16mm)	1.20" (30.48mm)	68th Driest	Driest since: 1979	1956
May 1977–Apr 1981 48-Month	120.97" (3,072.64mm)	119.77" (3,042.16mm)	1.20" (30.48mm)	57th Wettest	Wettest since: 1980	2019
May 1976–Apr 1981 60-Month	146.95" (3,732.53mm)	149.63" (3,800.60mm)	-2.68" (-68.07mm)	37th Driest	Driest since: 1968	1957
May 1976–Apr 1981 60-Month	146.95" (3,732.53mm)	149.63" (3,800.60mm)	-2.68" (-68.07mm)	87th Wettest	Wettest since: 1980	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published January 2023, retrieved on January 30, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings