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, May 1986

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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
May 1986 1-Month	2.95" (74.93mm)	2.91" (73.91mm)	0.04" (1.02mm)	67th Driest	Driest since: 1985	1934
	2.95" (74.93mm)	2.91" (73.91mm)	0.04" (1.02mm)	62nd Wettest	Wettest since: 1984	2019
	Ties: 1972
Apr–May 1986 2-Month	5.19" (131.83mm)	5.43" (137.92mm)	-0.24" (-6.09mm)	45th Driest	Driest since: 1985	1934
	5.19" (131.83mm)	5.43" (137.92mm)	-0.24" (-6.09mm)	84th Wettest	Wettest since: 1984	1957
	Ties: 1901, 1998
Mar–May 1986 3-Month	7.17" (182.12mm)	7.94" (201.68mm)	-0.77" (-19.56mm)	27th Driest	Driest since: 1985	1925
Mar–May 1986 3-Month	7.17" (182.12mm)	7.94" (201.68mm)	-0.77" (-19.56mm)	102nd Wettest	Wettest since: 1984	1957, 1991
Feb–May 1986 4-Month	9.99" (253.75mm)	10.07" (255.78mm)	-0.08" (-2.03mm)	66th Driest	Driest since: 1985	1925
	9.99" (253.75mm)	10.07" (255.78mm)	-0.08" (-2.03mm)	63rd Wettest	Wettest since: 1984	2019
	Ties: 2013
Jan–May 1986 5-Month	11.44" (290.58mm)	12.39" (314.71mm)	-0.95" (-24.13mm)	25th Driest	Driest since: 1985	1934
	11.44" (290.58mm)	12.39" (314.71mm)	-0.95" (-24.13mm)	104th Wettest	Wettest since: 1984	2019
	Ties: 1976
Dec 1985–May 1986 6-Month	12.90" (327.66mm)	14.73" (374.14mm)	-1.83" (-46.48mm)	11th Driest	Driest since: 1981	1931
Dec 1985–May 1986 6-Month	12.90" (327.66mm)	14.73" (374.14mm)	-1.83" (-46.48mm)	117th Wettest	Wettest since: 1985	2019
Nov 1985–May 1986 7-Month	16.44" (417.58mm)	16.96" (430.78mm)	-0.52" (-13.20mm)	48th Driest	Driest since: 1985	1934
Nov 1985–May 1986 7-Month	16.44" (417.58mm)	16.96" (430.78mm)	-0.52" (-13.20mm)	80th Wettest	Wettest since: 1984	1983
Oct 1985–May 1986 8-Month	19.62" (498.35mm)	19.13" (485.90mm)	0.49" (12.45mm)	77th Driest	Driest since: 1985	1934
	19.62" (498.35mm)	19.13" (485.90mm)	0.49" (12.45mm)	51st Wettest	Wettest since: 1984	2019
	Ties: 1946, 1987
Sep 1985–May 1986 9-Month	22.62" (574.55mm)	21.62" (549.15mm)	1.00" (25.40mm)	88th Driest	Driest since: 1985	1934
Sep 1985–May 1986 9-Month	22.62" (574.55mm)	21.62" (549.15mm)	1.00" (25.40mm)	40th Wettest	Wettest since: 1984	2019
Aug 1985–May 1986 10-Month	25.55" (648.97mm)	24.25" (615.95mm)	1.30" (33.02mm)	95th Driest	Driest since: 1985	1918
Aug 1985–May 1986 10-Month	25.55" (648.97mm)	24.25" (615.95mm)	1.30" (33.02mm)	33rd Wettest	Wettest since: 1984	2019
Jul 1985–May 1986 11-Month	28.27" (718.06mm)	27.03" (686.56mm)	1.24" (31.50mm)	92nd Driest	Driest since: 1985	1931
Jul 1985–May 1986 11-Month	28.27" (718.06mm)	27.03" (686.56mm)	1.24" (31.50mm)	36th Wettest	Wettest since: 1984	2019
Jun 1985–May 1986 12-Month	30.89" (784.61mm)	29.95" (760.73mm)	0.94" (23.88mm)	84th Driest	Driest since: 1985	1934
Jun 1985–May 1986 12-Month	30.89" (784.61mm)	29.95" (760.73mm)	0.94" (23.88mm)	44th Wettest	Wettest since: 1984	2019
Dec 1984–May 1986 18-Month	43.90" (1,115.06mm)	44.70" (1,135.38mm)	-0.80" (-20.32mm)	44th Driest	Driest since: 1981	1931
	43.90" (1,115.06mm)	44.70" (1,135.38mm)	-0.80" (-20.32mm)	83rd Wettest	Wettest since: 1985	2019
	Ties: 1971
Jun 1984–May 1986 24-Month	60.50" (1,536.70mm)	59.92" (1,521.97mm)	0.58" (14.73mm)	69th Driest	Driest since: 1982	1931
Jun 1984–May 1986 24-Month	60.50" (1,536.70mm)	59.92" (1,521.97mm)	0.58" (14.73mm)	58th Wettest	Wettest since: 1985	2020
Jun 1983–May 1986 36-Month	92.44" (2,347.98mm)	89.88" (2,282.95mm)	2.56" (65.03mm)	88th Driest	Driest since: 1982	1955
Jun 1983–May 1986 36-Month	92.44" (2,347.98mm)	89.88" (2,282.95mm)	2.56" (65.03mm)	38th Wettest	Wettest since: 1985	2019
Jun 1982–May 1986 48-Month	127.91" (3,248.91mm)	119.78" (3,042.41mm)	8.13" (206.50mm)	110th Driest	Driest since: 1984	1956
Jun 1982–May 1986 48-Month	127.91" (3,248.91mm)	119.78" (3,042.41mm)	8.13" (206.50mm)	15th Wettest	Wettest since: 1985	2019
Jun 1981–May 1986 60-Month	160.29" (4,071.37mm)	149.64" (3,800.86mm)	10.65" (270.51mm)	115th Driest	Driest since: 1985	1957
Jun 1981–May 1986 60-Month	160.29" (4,071.37mm)	149.64" (3,800.86mm)	10.65" (270.51mm)	9th Wettest	Wettest since: 1976	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published May 2023, retrieved on May 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings