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 1948

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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 1948 1-Month	2.54" (64.52mm)	2.52" (64.01mm)	0.02" (0.51mm)	71st Driest	Driest since: 1946	1987
	2.54" (64.52mm)	2.52" (64.01mm)	0.02" (0.51mm)	58th Wettest	Wettest since: 1947	1957
	Ties: 1933, 1978, 2006, 2008
Mar–Apr 1948 2-Month	5.54" (140.72mm)	5.03" (127.76mm)	0.51" (12.96mm)	100th Driest	Driest since: 1947	1910
Mar–Apr 1948 2-Month	5.54" (140.72mm)	5.03" (127.76mm)	0.51" (12.96mm)	29th Wettest	Wettest since: 1945	1973
Feb–Apr 1948 3-Month	8.08" (205.23mm)	7.16" (181.86mm)	0.92" (23.37mm)	106th Driest	Driest since: 1947	1910
Feb–Apr 1948 3-Month	8.08" (205.23mm)	7.16" (181.86mm)	0.92" (23.37mm)	23rd Wettest	Wettest since: 1945	1983
Jan–Apr 1948 4-Month	10.06" (255.52mm)	9.48" (240.79mm)	0.58" (14.73mm)	93rd Driest	Driest since: 1947	1910
Jan–Apr 1948 4-Month	10.06" (255.52mm)	9.48" (240.79mm)	0.58" (14.73mm)	36th Wettest	Wettest since: 1945	1998
Dec 1947–Apr 1948 5-Month	12.05" (306.07mm)	11.82" (300.23mm)	0.23" (5.84mm)	77th Driest	Driest since: 1947	1931
Dec 1947–Apr 1948 5-Month	12.05" (306.07mm)	11.82" (300.23mm)	0.23" (5.84mm)	51st Wettest	Wettest since: 1945	1983
Nov 1947–Apr 1948 6-Month	14.83" (376.68mm)	14.05" (356.87mm)	0.78" (19.81mm)	96th Driest	Driest since: 1947	1977
Nov 1947–Apr 1948 6-Month	14.83" (376.68mm)	14.05" (356.87mm)	0.78" (19.81mm)	32nd Wettest	Wettest since: 1945	1983
Oct 1947–Apr 1948 7-Month	17.11" (434.59mm)	16.22" (411.99mm)	0.89" (22.60mm)	93rd Driest	Driest since: 1947	1981
Oct 1947–Apr 1948 7-Month	17.11" (434.59mm)	16.22" (411.99mm)	0.89" (22.60mm)	35th Wettest	Wettest since: 1942	1983
Sep 1947–Apr 1948 8-Month	19.27" (489.46mm)	18.71" (475.23mm)	0.56" (14.23mm)	82nd Driest	Driest since: 1947	1918
Sep 1947–Apr 1948 8-Month	19.27" (489.46mm)	18.71" (475.23mm)	0.56" (14.23mm)	46th Wettest	Wettest since: 1946	2019
Aug 1947–Apr 1948 9-Month	21.66" (550.16mm)	21.33" (541.78mm)	0.33" (8.38mm)	77th Driest	Driest since: 1944	1918
	21.66" (550.16mm)	21.33" (541.78mm)	0.33" (8.38mm)	51st Wettest	Wettest since: 1947	2019
	Ties: 1965
Jul 1947–Apr 1948 10-Month	23.65" (600.71mm)	24.12" (612.65mm)	-0.47" (-11.94mm)	46th Driest	Driest since: 1944	1931
Jul 1947–Apr 1948 10-Month	23.65" (600.71mm)	24.12" (612.65mm)	-0.47" (-11.94mm)	82nd Wettest	Wettest since: 1947	2019
Jun 1947–Apr 1948 11-Month	27.48" (697.99mm)	27.04" (686.82mm)	0.44" (11.17mm)	75th Driest	Driest since: 1947	1931
Jun 1947–Apr 1948 11-Month	27.48" (697.99mm)	27.04" (686.82mm)	0.44" (11.17mm)	53rd Wettest	Wettest since: 1946	2019
May 1947–Apr 1948 12-Month	30.67" (779.02mm)	29.95" (760.73mm)	0.72" (18.29mm)	80th Driest	Driest since: 1945	1918
May 1947–Apr 1948 12-Month	30.67" (779.02mm)	29.95" (760.73mm)	0.72" (18.29mm)	48th Wettest	Wettest since: 1947	2019
Nov 1946–Apr 1948 18-Month	44.43" (1,128.52mm)	44.02" (1,118.11mm)	0.41" (10.41mm)	69th Driest	Driest since: 1944	1931
Nov 1946–Apr 1948 18-Month	44.43" (1,128.52mm)	44.02" (1,118.11mm)	0.41" (10.41mm)	58th Wettest	Wettest since: 1947	2020
May 1946–Apr 1948 24-Month	61.57" (1,563.88mm)	59.92" (1,521.97mm)	1.65" (41.91mm)	83rd Driest	Driest since: 1945	1955
May 1946–Apr 1948 24-Month	61.57" (1,563.88mm)	59.92" (1,521.97mm)	1.65" (41.91mm)	44th Wettest	Wettest since: 1947	2020
May 1945–Apr 1948 36-Month	92.81" (2,357.37mm)	89.88" (2,282.95mm)	2.93" (74.42mm)	88th Driest	Driest since: 1947	1955
May 1945–Apr 1948 36-Month	92.81" (2,357.37mm)	89.88" (2,282.95mm)	2.93" (74.42mm)	38th Wettest	Wettest since: 1944	2020
May 1944–Apr 1948 48-Month	123.28" (3,131.31mm)	119.77" (3,042.16mm)	3.51" (89.15mm)	92nd Driest	Driest since: 1947	1956
May 1944–Apr 1948 48-Month	123.28" (3,131.31mm)	119.77" (3,042.16mm)	3.51" (89.15mm)	33rd Wettest	Wettest since: 1945	2019
May 1943–Apr 1948 60-Month	152.47" (3,872.74mm)	149.63" (3,800.60mm)	2.84" (72.14mm)	76th Driest	Driest since: 1944	1957
May 1943–Apr 1948 60-Month	152.47" (3,872.74mm)	149.63" (3,800.60mm)	2.84" (72.14mm)	48th Wettest	Wettest since: 1947	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published March 2023, retrieved on March 20, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings