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 1950

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Record Driest

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
April 1950 1-Month	2.08" (52.83mm)	2.52" (64.01mm)	-0.44" (-11.18mm)	20th Driest	Driest since: 1946	1987
	2.08" (52.83mm)	2.52" (64.01mm)	-0.44" (-11.18mm)	109th Wettest	Wettest since: 1949	1957
	Ties: 1906
Mar–Apr 1950 2-Month	4.57" (116.08mm)	5.03" (127.76mm)	-0.46" (-11.68mm)	35th Driest	Driest since: 1949	1910
	4.57" (116.08mm)	5.03" (127.76mm)	-0.46" (-11.68mm)	94th Wettest	Wettest since: 1948	1973
	Ties: 1992, 2021
Feb–Apr 1950 3-Month	6.80" (172.72mm)	7.16" (181.86mm)	-0.36" (-9.14mm)	49th Driest	Driest since: 1947	1910
	6.80" (172.72mm)	7.16" (181.86mm)	-0.36" (-9.14mm)	80th Wettest	Wettest since: 1949	1983
	Ties: 1962
Jan–Apr 1950 4-Month	10.16" (258.06mm)	9.48" (240.79mm)	0.68" (17.27mm)	101st Driest	Driest since: 1949	1910
Jan–Apr 1950 4-Month	10.16" (258.06mm)	9.48" (240.79mm)	0.68" (17.27mm)	28th Wettest	Wettest since: 1945	1998
Dec 1949–Apr 1950 5-Month	12.38" (314.45mm)	11.82" (300.23mm)	0.56" (14.22mm)	89th Driest	Driest since: 1948	1931
Dec 1949–Apr 1950 5-Month	12.38" (314.45mm)	11.82" (300.23mm)	0.56" (14.22mm)	39th Wettest	Wettest since: 1949	1983
Nov 1949–Apr 1950 6-Month	13.57" (344.68mm)	14.05" (356.87mm)	-0.48" (-12.19mm)	51st Driest	Driest since: 1942	1977
	13.57" (344.68mm)	14.05" (356.87mm)	-0.48" (-12.19mm)	77th Wettest	Wettest since: 1949	1983
	Ties: 1987
Oct 1949–Apr 1950 7-Month	16.37" (415.80mm)	16.22" (411.99mm)	0.15" (3.81mm)	72nd Driest	Driest since: 1946	1981
	16.37" (415.80mm)	16.22" (411.99mm)	0.15" (3.81mm)	56th Wettest	Wettest since: 1949	1983
	Ties: 1921
Sep 1949–Apr 1950 8-Month	18.59" (472.19mm)	18.71" (475.23mm)	-0.12" (-3.04mm)	60th Driest	Driest since: 1944	1918
	18.59" (472.19mm)	18.71" (475.23mm)	-0.12" (-3.04mm)	68th Wettest	Wettest since: 1949	2019
	Ties: 1926
Aug 1949–Apr 1950 9-Month	21.08" (535.43mm)	21.33" (541.78mm)	-0.25" (-6.35mm)	53rd Driest	Driest since: 1944	1918
Aug 1949–Apr 1950 9-Month	21.08" (535.43mm)	21.33" (541.78mm)	-0.25" (-6.35mm)	75th Wettest	Wettest since: 1949	2019
Jul 1949–Apr 1950 10-Month	24.16" (613.66mm)	24.12" (612.65mm)	0.04" (1.01mm)	62nd Driest	Driest since: 1948	1931
	24.16" (613.66mm)	24.12" (612.65mm)	0.04" (1.01mm)	66th Wettest	Wettest since: 1949	2019
	Ties: 1992
Jun 1949–Apr 1950 11-Month	27.36" (694.94mm)	27.04" (686.82mm)	0.32" (8.12mm)	68th Driest	Driest since: 1947	1931
Jun 1949–Apr 1950 11-Month	27.36" (694.94mm)	27.04" (686.82mm)	0.32" (8.12mm)	60th Wettest	Wettest since: 1949	2019
May 1949–Apr 1950 12-Month	30.34" (770.64mm)	29.95" (760.73mm)	0.39" (9.91mm)	66th Driest	Driest since: 1944	1918
May 1949–Apr 1950 12-Month	30.34" (770.64mm)	29.95" (760.73mm)	0.39" (9.91mm)	62nd Wettest	Wettest since: 1949	2019
Nov 1948–Apr 1950 18-Month	46.44" (1,179.58mm)	44.02" (1,118.11mm)	2.42" (61.47mm)	100th Driest	Driest since: 1949	1931
Nov 1948–Apr 1950 18-Month	46.44" (1,179.58mm)	44.02" (1,118.11mm)	2.42" (61.47mm)	27th Wettest	Wettest since: 1946	2020
May 1948–Apr 1950 24-Month	61.09" (1,551.69mm)	59.92" (1,521.97mm)	1.17" (29.72mm)	75th Driest	Driest since: 1945	1955
May 1948–Apr 1950 24-Month	61.09" (1,551.69mm)	59.92" (1,521.97mm)	1.17" (29.72mm)	52nd Wettest	Wettest since: 1949	2020
May 1947–Apr 1950 36-Month	91.76" (2,330.70mm)	89.88" (2,282.95mm)	1.88" (47.75mm)	80th Driest	Driest since: 1946	1955
May 1947–Apr 1950 36-Month	91.76" (2,330.70mm)	89.88" (2,282.95mm)	1.88" (47.75mm)	46th Wettest	Wettest since: 1949	2020
May 1946–Apr 1950 48-Month	122.66" (3,115.56mm)	119.77" (3,042.16mm)	2.89" (73.40mm)	85th Driest	Driest since: 1947	1956
May 1946–Apr 1950 48-Month	122.66" (3,115.56mm)	119.77" (3,042.16mm)	2.89" (73.40mm)	40th Wettest	Wettest since: 1949	2019
May 1945–Apr 1950 60-Month	153.90" (3,909.06mm)	149.63" (3,800.60mm)	4.27" (108.46mm)	90th Driest	Driest since: 1948	1957
May 1945–Apr 1950 60-Month	153.90" (3,909.06mm)	149.63" (3,800.60mm)	4.27" (108.46mm)	34th Wettest	Wettest since: 1949	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published March 2023, retrieved on March 27, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings