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 2008

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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 2008 1-Month	2.80" (71.12mm)	2.78" (70.61mm)	0.02" (0.51mm)	62nd Driest	Driest since: 2006	1930
	2.80" (71.12mm)	2.78" (70.61mm)	0.02" (0.51mm)	67th Wettest	Wettest since: 2007	1950, 1958
	Ties: 2017
Jun–Jul 2008 2-Month	5.80" (147.32mm)	5.70" (144.78mm)	0.10" (2.54mm)	61st Driest	Driest since: 2007	1930
Jun–Jul 2008 2-Month	5.80" (147.32mm)	5.70" (144.78mm)	0.10" (2.54mm)	68th Wettest	Wettest since: 2005	1928
May–Jul 2008 3-Month	8.80" (223.52mm)	8.62" (218.95mm)	0.18" (4.57mm)	66th Driest	Driest since: 2007	1988
	8.80" (223.52mm)	8.62" (218.95mm)	0.18" (4.57mm)	63rd Wettest	Wettest since: 2004	2015
	Ties: 1998, 1999
Apr–Jul 2008 4-Month	11.34" (288.04mm)	11.13" (282.70mm)	0.21" (5.34mm)	63rd Driest	Driest since: 2007	1934
Apr–Jul 2008 4-Month	11.34" (288.04mm)	11.13" (282.70mm)	0.21" (5.34mm)	66th Wettest	Wettest since: 2004	2015
Mar–Jul 2008 5-Month	13.86" (352.04mm)	13.64" (346.46mm)	0.22" (5.58mm)	68th Driest	Driest since: 2007	1936
	13.86" (352.04mm)	13.64" (346.46mm)	0.22" (5.58mm)	61st Wettest	Wettest since: 2004	1973
	Ties: 1903, 1999
Feb–Jul 2008 6-Month	16.33" (414.78mm)	15.78" (400.81mm)	0.55" (13.97mm)	77th Driest	Driest since: 2007	1934
Feb–Jul 2008 6-Month	16.33" (414.78mm)	15.78" (400.81mm)	0.55" (13.97mm)	52nd Wettest	Wettest since: 2004	2019
Jan–Jul 2008 7-Month	18.54" (470.92mm)	18.09" (459.49mm)	0.45" (11.43mm)	76th Driest	Driest since: 2007	1934
Jan–Jul 2008 7-Month	18.54" (470.92mm)	18.09" (459.49mm)	0.45" (11.43mm)	53rd Wettest	Wettest since: 2004	2019
Dec 2007–Jul 2008 8-Month	21.51" (546.35mm)	20.44" (519.18mm)	1.07" (27.17mm)	92nd Driest	Driest since: 2007	1931
	21.51" (546.35mm)	20.44" (519.18mm)	1.07" (27.17mm)	36th Wettest	Wettest since: 1998	2019
	Ties: 1984
Nov 2007–Jul 2008 9-Month	22.91" (581.91mm)	22.66" (575.56mm)	0.25" (6.35mm)	67th Driest	Driest since: 2007	1934
Nov 2007–Jul 2008 9-Month	22.91" (581.91mm)	22.66" (575.56mm)	0.25" (6.35mm)	61st Wettest	Wettest since: 2005	2019
Oct 2007–Jul 2008 10-Month	25.63" (651.00mm)	24.83" (630.68mm)	0.80" (20.32mm)	77th Driest	Driest since: 2007	1934
Oct 2007–Jul 2008 10-Month	25.63" (651.00mm)	24.83" (630.68mm)	0.80" (20.32mm)	51st Wettest	Wettest since: 2005	2019
Sep 2007–Jul 2008 11-Month	27.80" (706.12mm)	27.33" (694.18mm)	0.47" (11.94mm)	67th Driest	Driest since: 2006	1934
Sep 2007–Jul 2008 11-Month	27.80" (706.12mm)	27.33" (694.18mm)	0.47" (11.94mm)	61st Wettest	Wettest since: 2007	2019
Aug 2007–Jul 2008 12-Month	30.40" (772.16mm)	29.95" (760.73mm)	0.45" (11.43mm)	67th Driest	Driest since: 2006	1918
Aug 2007–Jul 2008 12-Month	30.40" (772.16mm)	29.95" (760.73mm)	0.45" (11.43mm)	61st Wettest	Wettest since: 2007	2019
Feb 2007–Jul 2008 18-Month	45.50" (1,155.70mm)	45.74" (1,161.80mm)	-0.24" (-6.10mm)	54th Driest	Driest since: 2007	1931
Feb 2007–Jul 2008 18-Month	45.50" (1,155.70mm)	45.74" (1,161.80mm)	-0.24" (-6.10mm)	74th Wettest	Wettest since: 2005	2019
Aug 2006–Jul 2008 24-Month	61.25" (1,555.75mm)	59.92" (1,521.97mm)	1.33" (33.78mm)	76th Driest	Driest since: 2007	1918
Aug 2006–Jul 2008 24-Month	61.25" (1,555.75mm)	59.92" (1,521.97mm)	1.33" (33.78mm)	51st Wettest	Wettest since: 2005	2020
Aug 2005–Jul 2008 36-Month	89.35" (2,269.49mm)	89.88" (2,282.95mm)	-0.53" (-13.46mm)	52nd Driest	Driest since: 2003	1956
Aug 2005–Jul 2008 36-Month	89.35" (2,269.49mm)	89.88" (2,282.95mm)	-0.53" (-13.46mm)	74th Wettest	Wettest since: 2007	2019
Aug 2004–Jul 2008 48-Month	122.04" (3,099.82mm)	119.78" (3,042.41mm)	2.26" (57.41mm)	79th Driest	Driest since: 2004	1956
Aug 2004–Jul 2008 48-Month	122.04" (3,099.82mm)	119.78" (3,042.41mm)	2.26" (57.41mm)	46th Wettest	Wettest since: 2007	2019
Aug 2003–Jul 2008 60-Month	153.01" (3,886.45mm)	149.64" (3,800.86mm)	3.37" (85.59mm)	80th Driest	Driest since: 2006	1934
Aug 2003–Jul 2008 60-Month	153.01" (3,886.45mm)	149.64" (3,800.86mm)	3.37" (85.59mm)	44th Wettest	Wettest since: 2007	2019

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published May 2023, retrieved on June 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings