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

October 2011 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
October 2011 1-Month	1.50	0.02	1.48	101st Driest	Driest since: 2010	1963
	1.50	0.02	1.48	30th Wettest	Wettest since: 2009	1954
	Ties: 1985
Sep–Oct 2011 2-Month	0.17	-0.07	0.24	81st Driest	Driest since: 2010	1908
	0.17	-0.07	0.24	50th Wettest	Wettest since: 2008	1986
	Ties: 1965
Aug–Oct 2011 3-Month	0.40	-0.02	0.42	83rd Driest	Driest since: 2010	1930
	0.40	-0.02	0.42	48th Wettest	Wettest since: 2009	1986
	Ties: 1957, 1975
Jul–Oct 2011 4-Month	0.26	0.07	0.19	77th Driest	Driest since: 2010	1930
Jul–Oct 2011 4-Month	0.26	0.07	0.19	54th Wettest	Wettest since: 2009	1986
Jun–Oct 2011 5-Month	0.24	0.06	0.18	78th Driest	Driest since: 2007	1930
Jun–Oct 2011 5-Month	0.24	0.06	0.18	53rd Wettest	Wettest since: 2010	1986
May–Oct 2011 6-Month	0.63	0.09	0.54	91st Driest	Driest since: 2010	1934
May–Oct 2011 6-Month	0.63	0.09	0.54	40th Wettest	Wettest since: 2009	1986
Apr–Oct 2011 7-Month	1.27	0.11	1.16	114th Driest	Driest since: 2010	1934
Apr–Oct 2011 7-Month	1.27	0.11	1.16	17th Wettest	Wettest since: 2008	1986
Mar–Oct 2011 8-Month	1.32	0.10	1.22	123rd Driest	Driest since: 2010	1934
Mar–Oct 2011 8-Month	1.32	0.10	1.22	8th Wettest	Wettest since: 1996	1902
Feb–Oct 2011 9-Month	1.28	0.09	1.19	119th Driest	Driest since: 2010	1934
Feb–Oct 2011 9-Month	1.28	0.09	1.19	12th Wettest	Wettest since: 2009	1986
Jan–Oct 2011 10-Month	1.08	0.09	0.99	117th Driest	Driest since: 2010	1931
Jan–Oct 2011 10-Month	1.08	0.09	0.99	14th Wettest	Wettest since: 2009	1986
Dec 2010–Oct 2011 11-Month	0.83	0.07	0.76	105th Driest	Driest since: 2010	1931
Dec 2010–Oct 2011 11-Month	0.83	0.07	0.76	25th Wettest	Wettest since: 2009	1986
Nov 2010–Oct 2011 12-Month	0.71	0.06	0.65	101st Driest	Driest since: 2010	1931
Nov 2010–Oct 2011 12-Month	0.71	0.06	0.65	29th Wettest	Wettest since: 2009	1986
May 2010–Oct 2011 18-Month	0.60	0.07	0.53	104th Driest	Driest since: 2010	1931
May 2010–Oct 2011 18-Month	0.60	0.07	0.53	26th Wettest	Wettest since: 2009	1903
Nov 2009–Oct 2011 24-Month	0.07	0.06	0.01	58th Driest	Driest since: 2004	1931
Nov 2009–Oct 2011 24-Month	0.07	0.06	0.01	71st Wettest	Wettest since: 2010	1986
Nov 2008–Oct 2011 36-Month	0.52	0.07	0.45	102nd Driest	Driest since: 2007	1965
Nov 2008–Oct 2011 36-Month	0.52	0.07	0.45	26th Wettest	Wettest since: 2010	1986
Nov 2007–Oct 2011 48-Month	0.63	0.07	0.56	112th Driest	Driest since: 2010	1966
Nov 2007–Oct 2011 48-Month	0.63	0.07	0.56	15th Wettest	Wettest since: 2009	1986
Nov 2006–Oct 2011 60-Month	0.48	0.07	0.41	105th Driest	Driest since: 2008	1934
	0.48	0.07	0.41	21st Wettest	Wettest since: 2010	1986
	Ties: 2008

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on April 6, 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

October 2011 Palmer Z-Index Rankings

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