Climate at a Glance | Divisional Rankings | National Centers for Environmental Information (NCEI)

Divisional Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska or Hawaii. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Michigan, Climate Division 6

January 1991 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
January 1991 1-Month	-0.13	0.10	-0.23	57th Driest	Driest since: 1989	1945
	-0.13	0.10	-0.23	75th Wettest	Wettest since: 1990	1897
	Ties: 1900, 1904, 1980
Dec 1990–Jan 1991 2-Month	0.17	-0.06	0.23	73rd Driest	Driest since: 1990	1977
	0.17	-0.06	0.23	58th Wettest	Wettest since: 1988	2013
	Ties: 1984
Nov 1990–Jan 1991 3-Month	1.37	-0.09	1.46	114th Driest	Driest since: 1990	1931
Nov 1990–Jan 1991 3-Month	1.37	-0.09	1.46	17th Wettest	Wettest since: 1986	2020
Oct 1990–Jan 1991 4-Month	1.96	-0.07	2.03	128th Driest	Driest since: 1990	1931
Oct 1990–Jan 1991 4-Month	1.96	-0.07	2.03	3rd Wettest	Wettest since: 1952	2020
Sep 1990–Jan 1991 5-Month	1.69	-0.12	1.81	123rd Driest	Driest since: 1990	1931
Sep 1990–Jan 1991 5-Month	1.69	-0.12	1.81	8th Wettest	Wettest since: 1987	2020
Aug 1990–Jan 1991 6-Month	1.49	-0.12	1.61	119th Driest	Driest since: 1990	1931
Aug 1990–Jan 1991 6-Month	1.49	-0.12	1.61	12th Wettest	Wettest since: 1988	2020
Jul 1990–Jan 1991 7-Month	1.49	-0.07	1.56	122nd Driest	Driest since: 1990	1931
Jul 1990–Jan 1991 7-Month	1.49	-0.07	1.56	9th Wettest	Wettest since: 1987	2020
Jun 1990–Jan 1991 8-Month	1.42	-0.07	1.49	122nd Driest	Driest since: 1990	1931
Jun 1990–Jan 1991 8-Month	1.42	-0.07	1.49	9th Wettest	Wettest since: 1987	2020
May 1990–Jan 1991 9-Month	1.51	-0.05	1.56	125th Driest	Driest since: 1990	1931
May 1990–Jan 1991 9-Month	1.51	-0.05	1.56	6th Wettest	Wettest since: 1987	2020
Apr 1990–Jan 1991 10-Month	1.20	-0.03	1.23	121st Driest	Driest since: 1990	1931
Apr 1990–Jan 1991 10-Month	1.20	-0.03	1.23	10th Wettest	Wettest since: 1987	2020
Mar 1990–Jan 1991 11-Month	1.06	-0.02	1.08	117th Driest	Driest since: 1990	1931
Mar 1990–Jan 1991 11-Month	1.06	-0.02	1.08	14th Wettest	Wettest since: 1987	2020
Feb 1990–Jan 1991 12-Month	1.06	0.00	1.06	121st Driest	Driest since: 1990	1931
Feb 1990–Jan 1991 12-Month	1.06	0.00	1.06	10th Wettest	Wettest since: 1987	2020
Aug 1989–Jan 1991 18-Month	0.36	-0.04	0.40	92nd Driest	Driest since: 1990	1931
Aug 1989–Jan 1991 18-Month	0.36	-0.04	0.40	38th Wettest	Wettest since: 1988	2020
Feb 1989–Jan 1991 24-Month	0.31	0.00	0.31	89th Driest	Driest since: 1990	1932
Feb 1989–Jan 1991 24-Month	0.31	0.00	0.31	41st Wettest	Wettest since: 1988	2020
Feb 1988–Jan 1991 36-Month	0.10	0.00	0.10	73rd Driest	Driest since: 1990	1937, 1965
Feb 1988–Jan 1991 36-Month	0.10	0.00	0.10	56th Wettest	Wettest since: 1989	2020
Feb 1987–Jan 1991 48-Month	-0.02	0.00	-0.02	59th Driest	Driest since: 1982	1937
Feb 1987–Jan 1991 48-Month	-0.02	0.00	-0.02	69th Wettest	Wettest since: 1990	2020
Feb 1986–Jan 1991 60-Month	0.26	0.00	0.26	91st Driest	Driest since: 1984	1935
	0.26	0.00	0.26	36th Wettest	Wettest since: 1990	1995, 2020
	Ties: 1971

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 31, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings

Climate at a Glance Divisional Rankings

Divisional Rankings

Michigan, Climate Division 6

January 1991 Palmer Z-Index Rankings

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