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 1998

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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 1998 1-Month	2.86" (72.64mm)	2.78" (70.61mm)	0.08" (2.03mm)	74th Driest	Driest since: 1997	1930
	2.86" (72.64mm)	2.78" (70.61mm)	0.08" (2.03mm)	55th Wettest	Wettest since: 1996	1950, 1958
	Ties: 1911, 1921, 1926, 1989, 2018
Jun–Jul 1998 2-Month	6.18" (156.97mm)	5.70" (144.78mm)	0.48" (12.19mm)	100th Driest	Driest since: 1997	1930
Jun–Jul 1998 2-Month	6.18" (156.97mm)	5.70" (144.78mm)	0.48" (12.19mm)	29th Wettest	Wettest since: 1993	1928
May–Jul 1998 3-Month	8.80" (223.52mm)	8.62" (218.95mm)	0.18" (4.57mm)	64th Driest	Driest since: 1994	1988
	8.80" (223.52mm)	8.62" (218.95mm)	0.18" (4.57mm)	65th Wettest	Wettest since: 1997	2015
	Ties: 1999, 2008
Apr–Jul 1998 4-Month	11.37" (288.80mm)	11.13" (282.70mm)	0.24" (6.10mm)	66th Driest	Driest since: 1994	1934
Apr–Jul 1998 4-Month	11.37" (288.80mm)	11.13" (282.70mm)	0.24" (6.10mm)	63rd Wettest	Wettest since: 1997	2015
Mar–Jul 1998 5-Month	14.60" (370.84mm)	13.64" (346.46mm)	0.96" (24.38mm)	98th Driest	Driest since: 1997	1936
	14.60" (370.84mm)	13.64" (346.46mm)	0.96" (24.38mm)	31st Wettest	Wettest since: 1995	1973
	Ties: 1948
Feb–Jul 1998 6-Month	17.92" (455.17mm)	15.78" (400.81mm)	2.14" (54.36mm)	120th Driest	Driest since: 1997	1934
	17.92" (455.17mm)	15.78" (400.81mm)	2.14" (54.36mm)	9th Wettest	Wettest since: 1983	2019
	Ties: 2015
Jan–Jul 1998 7-Month	21.28" (540.51mm)	18.09" (459.49mm)	3.19" (81.02mm)	127th Driest	Driest since: 1997	1934
Jan–Jul 1998 7-Month	21.28" (540.51mm)	18.09" (459.49mm)	3.19" (81.02mm)	2nd Wettest	Wettest to Date	2019
Dec 1997–Jul 1998 8-Month	23.59" (599.19mm)	20.44" (519.18mm)	3.15" (80.01mm)	123rd Driest	Driest since: 1997	1931
Dec 1997–Jul 1998 8-Month	23.59" (599.19mm)	20.44" (519.18mm)	3.15" (80.01mm)	5th Wettest	Wettest since: 1993	2019
Nov 1997–Jul 1998 9-Month	25.88" (657.35mm)	22.66" (575.56mm)	3.22" (81.79mm)	122nd Driest	Driest since: 1997	1934
Nov 1997–Jul 1998 9-Month	25.88" (657.35mm)	22.66" (575.56mm)	3.22" (81.79mm)	6th Wettest	Wettest since: 1993	2019
Oct 1997–Jul 1998 10-Month	28.40" (721.36mm)	24.83" (630.68mm)	3.57" (90.68mm)	120th Driest	Driest since: 1997	1934
Oct 1997–Jul 1998 10-Month	28.40" (721.36mm)	24.83" (630.68mm)	3.57" (90.68mm)	8th Wettest	Wettest since: 1995	2019
Sep 1997–Jul 1998 11-Month	30.94" (785.88mm)	27.33" (694.18mm)	3.61" (91.70mm)	120th Driest	Driest since: 1996	1934
Sep 1997–Jul 1998 11-Month	30.94" (785.88mm)	27.33" (694.18mm)	3.61" (91.70mm)	8th Wettest	Wettest since: 1997	2019
Aug 1997–Jul 1998 12-Month	33.62" (853.95mm)	29.95" (760.73mm)	3.67" (93.22mm)	120th Driest	Driest since: 1996	1918
Aug 1997–Jul 1998 12-Month	33.62" (853.95mm)	29.95" (760.73mm)	3.67" (93.22mm)	8th Wettest	Wettest since: 1997	2019
Feb 1997–Jul 1998 18-Month	50.33" (1,278.38mm)	45.74" (1,161.80mm)	4.59" (116.58mm)	119th Driest	Driest since: 1996	1931
Feb 1997–Jul 1998 18-Month	50.33" (1,278.38mm)	45.74" (1,161.80mm)	4.59" (116.58mm)	9th Wettest	Wettest since: 1997	2019
Aug 1996–Jul 1998 24-Month	68.02" (1,727.71mm)	59.92" (1,521.97mm)	8.10" (205.74mm)	124th Driest	Driest since: 1997	1918
Aug 1996–Jul 1998 24-Month	68.02" (1,727.71mm)	59.92" (1,521.97mm)	8.10" (205.74mm)	3rd Wettest	Wettest to Date	2020
Aug 1995–Jul 1998 36-Month	98.95" (2,513.33mm)	89.88" (2,282.95mm)	9.07" (230.38mm)	118th Driest	Driest since: 1997	1956
Aug 1995–Jul 1998 36-Month	98.95" (2,513.33mm)	89.88" (2,282.95mm)	9.07" (230.38mm)	8th Wettest	Wettest since: 1984	2019
Aug 1994–Jul 1998 48-Month	132.16" (3,356.86mm)	119.78" (3,042.41mm)	12.38" (314.45mm)	122nd Driest	Driest since: 1997	1956
Aug 1994–Jul 1998 48-Month	132.16" (3,356.86mm)	119.78" (3,042.41mm)	12.38" (314.45mm)	3rd Wettest	Wettest to Date	2019
Aug 1993–Jul 1998 60-Month	161.77" (4,108.96mm)	149.64" (3,800.86mm)	12.13" (308.10mm)	118th Driest	Driest since: 1996	1934
Aug 1993–Jul 1998 60-Month	161.77" (4,108.96mm)	149.64" (3,800.86mm)	12.13" (308.10mm)	6th Wettest	Wettest since: 1997	2019

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published March 2023, retrieved on April 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings