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 7

January 1990 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
January 1990 1-Month	0.72	0.09	0.63	82nd Driest	Driest since: 1989	1961
January 1990 1-Month	0.72	0.09	0.63	50th Wettest	Wettest since: 1985	1897
Dec 1989–Jan 1990 2-Month	-0.01	-0.03	0.02	58th Driest	Driest since: 1989	1961
Dec 1989–Jan 1990 2-Month	-0.01	-0.03	0.02	73rd Wettest	Wettest since: 1988	1907
Nov 1989–Jan 1990 3-Month	0.46	-0.03	0.49	75th Driest	Driest since: 1987	1931
	0.46	-0.03	0.49	56th Wettest	Wettest since: 1989	1993
	Ties: 1982
Oct 1989–Jan 1990 4-Month	0.11	-0.02	0.13	62nd Driest	Driest since: 1980	1931
Oct 1989–Jan 1990 4-Month	0.11	-0.02	0.13	69th Wettest	Wettest since: 1989	2020
Sep 1989–Jan 1990 5-Month	-0.12	-0.05	-0.07	58th Driest	Driest since: 1980	1931
	-0.12	-0.05	-0.07	73rd Wettest	Wettest since: 1989	1987
	Ties: 1976
Aug 1989–Jan 1990 6-Month	0.01	-0.03	0.04	68th Driest	Driest since: 1980	1931
Aug 1989–Jan 1990 6-Month	0.01	-0.03	0.04	63rd Wettest	Wettest since: 1989	1987
Jul 1989–Jan 1990 7-Month	-0.18	0.02	-0.20	53rd Driest	Driest since: 1980	1931
Jul 1989–Jan 1990 7-Month	-0.18	0.02	-0.20	78th Wettest	Wettest since: 1989	1987
Jun 1989–Jan 1990 8-Month	0.15	0.02	0.13	73rd Driest	Driest since: 1989	1931
Jun 1989–Jan 1990 8-Month	0.15	0.02	0.13	58th Wettest	Wettest since: 1988	1903
May 1989–Jan 1990 9-Month	0.28	0.04	0.24	74th Driest	Driest since: 1989	1931
May 1989–Jan 1990 9-Month	0.28	0.04	0.24	57th Wettest	Wettest since: 1987	1903
Apr 1989–Jan 1990 10-Month	0.17	0.06	0.11	68th Driest	Driest since: 1989	1931
Apr 1989–Jan 1990 10-Month	0.17	0.06	0.11	63rd Wettest	Wettest since: 1987	1997
Mar 1989–Jan 1990 11-Month	0.17	0.06	0.11	66th Driest	Driest since: 1989	1931
Mar 1989–Jan 1990 11-Month	0.17	0.06	0.11	65th Wettest	Wettest since: 1987	1903
Feb 1989–Jan 1990 12-Month	0.05	0.06	-0.01	59th Driest	Driest since: 1989	1931
Feb 1989–Jan 1990 12-Month	0.05	0.06	-0.01	72nd Wettest	Wettest since: 1987	1997
Aug 1988–Jan 1990 18-Month	0.30	0.03	0.27	84th Driest	Driest since: 1989	1932
Aug 1988–Jan 1990 18-Month	0.30	0.03	0.27	46th Wettest	Wettest since: 1988	1987
Feb 1988–Jan 1990 24-Month	-0.17	0.06	-0.23	38th Driest	Driest since: 1989	1932
Feb 1988–Jan 1990 24-Month	-0.17	0.06	-0.23	92nd Wettest	Wettest since: 1988	1987
Feb 1987–Jan 1990 36-Month	-0.26	0.07	-0.33	29th Driest	Driest since: 1980	1937
	-0.26	0.07	-0.33	100th Wettest	Wettest since: 1989	1987
	Ties: 1956
Feb 1986–Jan 1990 48-Month	0.19	0.07	0.12	71st Driest	Driest since: 1982	1937
Feb 1986–Jan 1990 48-Month	0.19	0.07	0.12	57th Wettest	Wettest since: 1989	1987
Feb 1985–Jan 1990 60-Month	0.42	0.07	0.35	102nd Driest	Driest since: 1984	1935
Feb 1985–Jan 1990 60-Month	0.42	0.07	0.35	25th Wettest	Wettest since: 1989	1987

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 30, 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 7

January 1990 Palmer Z-Index Rankings

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