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, July 1951

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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
July 1951 1-Month	2.85" (72.39mm)	2.78" (70.61mm)	0.07" (1.78mm)	68th Driest	Driest since: 1947	1930
July 1951 1-Month	2.85" (72.39mm)	2.78" (70.61mm)	0.07" (1.78mm)	61st Wettest	Wettest since: 1950	1950, 1958
Jun–Jul 1951 2-Month	6.29" (159.77mm)	5.70" (144.78mm)	0.59" (14.99mm)	107th Driest	Driest since: 1949	1930
	6.29" (159.77mm)	5.70" (144.78mm)	0.59" (14.99mm)	22nd Wettest	Wettest since: 1950	1928
	Ties: 1948
May–Jul 1951 3-Month	8.66" (219.96mm)	8.62" (218.95mm)	0.04" (1.01mm)	56th Driest	Driest since: 1944	1988
	8.66" (219.96mm)	8.62" (218.95mm)	0.04" (1.01mm)	73rd Wettest	Wettest since: 1950	2015
	Ties: 1899
Apr–Jul 1951 4-Month	11.01" (279.65mm)	11.13" (282.70mm)	-0.12" (-3.05mm)	53rd Driest	Driest since: 1946	1934
Apr–Jul 1951 4-Month	11.01" (279.65mm)	11.13" (282.70mm)	-0.12" (-3.05mm)	76th Wettest	Wettest since: 1950	2015
Mar–Jul 1951 5-Month	13.61" (345.69mm)	13.64" (346.46mm)	-0.03" (-0.77mm)	55th Driest	Driest since: 1946	1936
Mar–Jul 1951 5-Month	13.61" (345.69mm)	13.64" (346.46mm)	-0.03" (-0.77mm)	74th Wettest	Wettest since: 1950	1973
Feb–Jul 1951 6-Month	15.88" (403.35mm)	15.78" (400.81mm)	0.10" (2.54mm)	64th Driest	Driest since: 1947	1934
Feb–Jul 1951 6-Month	15.88" (403.35mm)	15.78" (400.81mm)	0.10" (2.54mm)	65th Wettest	Wettest since: 1950	2019
Jan–Jul 1951 7-Month	18.22" (462.79mm)	18.09" (459.49mm)	0.13" (3.30mm)	67th Driest	Driest since: 1947	1934
Jan–Jul 1951 7-Month	18.22" (462.79mm)	18.09" (459.49mm)	0.13" (3.30mm)	62nd Wettest	Wettest since: 1950	2019
Dec 1950–Jul 1951 8-Month	20.15" (511.81mm)	20.44" (519.18mm)	-0.29" (-7.37mm)	50th Driest	Driest since: 1947	1931
Dec 1950–Jul 1951 8-Month	20.15" (511.81mm)	20.44" (519.18mm)	-0.29" (-7.37mm)	78th Wettest	Wettest since: 1950	2019
Nov 1950–Jul 1951 9-Month	22.25" (565.15mm)	22.66" (575.56mm)	-0.41" (-10.41mm)	50th Driest	Driest since: 1940	1934
Nov 1950–Jul 1951 9-Month	22.25" (565.15mm)	22.66" (575.56mm)	-0.41" (-10.41mm)	78th Wettest	Wettest since: 1950	2019
Oct 1950–Jul 1951 10-Month	24.15" (613.41mm)	24.83" (630.68mm)	-0.68" (-17.27mm)	40th Driest	Driest since: 1940	1934
Oct 1950–Jul 1951 10-Month	24.15" (613.41mm)	24.83" (630.68mm)	-0.68" (-17.27mm)	88th Wettest	Wettest since: 1950	2019
Sep 1950–Jul 1951 11-Month	26.84" (681.74mm)	27.33" (694.18mm)	-0.49" (-12.44mm)	49th Driest	Driest since: 1944	1934
	26.84" (681.74mm)	27.33" (694.18mm)	-0.49" (-12.44mm)	79th Wettest	Wettest since: 1950	2019
	Ties: 1994
Aug 1950–Jul 1951 12-Month	29.39" (746.51mm)	29.95" (760.73mm)	-0.56" (-14.22mm)	47th Driest	Driest since: 1944	1918
Aug 1950–Jul 1951 12-Month	29.39" (746.51mm)	29.95" (760.73mm)	-0.56" (-14.22mm)	81st Wettest	Wettest since: 1950	2019
Feb 1950–Jul 1951 18-Month	45.73" (1,161.54mm)	45.74" (1,161.80mm)	-0.01" (-0.26mm)	58th Driest	Driest since: 1944	1931
Feb 1950–Jul 1951 18-Month	45.73" (1,161.54mm)	45.74" (1,161.80mm)	-0.01" (-0.26mm)	70th Wettest	Wettest since: 1950	2019
Aug 1949–Jul 1951 24-Month	60.01" (1,524.25mm)	59.92" (1,521.97mm)	0.09" (2.28mm)	59th Driest	Driest since: 1945	1918
Aug 1949–Jul 1951 24-Month	60.01" (1,524.25mm)	59.92" (1,521.97mm)	0.09" (2.28mm)	68th Wettest	Wettest since: 1950	2020
Aug 1948–Jul 1951 36-Month	90.96" (2,310.38mm)	89.88" (2,282.95mm)	1.08" (27.43mm)	75th Driest	Driest since: 1946	1956
Aug 1948–Jul 1951 36-Month	90.96" (2,310.38mm)	89.88" (2,282.95mm)	1.08" (27.43mm)	51st Wettest	Wettest since: 1950	2019
Aug 1947–Jul 1951 48-Month	121.68" (3,090.67mm)	119.78" (3,042.41mm)	1.90" (48.26mm)	75th Driest	Driest since: 1947	1956
Aug 1947–Jul 1951 48-Month	121.68" (3,090.67mm)	119.78" (3,042.41mm)	1.90" (48.26mm)	50th Wettest	Wettest since: 1950	2019
Aug 1946–Jul 1951 60-Month	152.39" (3,870.71mm)	149.64" (3,800.86mm)	2.75" (69.85mm)	77th Driest	Driest since: 1948	1934
Aug 1946–Jul 1951 60-Month	152.39" (3,870.71mm)	149.64" (3,800.86mm)	2.75" (69.85mm)	47th Wettest	Wettest since: 1950	2019

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published May 2023, retrieved on June 6, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings