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

December 2011 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 2011 1-Month	0.18	-0.11	0.29	71st Driest	Driest since: 2010	1930
December 2011 1-Month	0.18	-0.11	0.29	60th Wettest	Wettest since: 2008	1972
Nov–Dec 2011 2-Month	0.16	-0.08	0.24	64th Driest	Driest since: 2010	1930
Nov–Dec 2011 2-Month	0.16	-0.08	0.24	67th Wettest	Wettest since: 2008	1959
Oct–Dec 2011 3-Month	0.60	-0.05	0.65	85th Driest	Driest since: 2010	1930
	0.60	-0.05	0.65	46th Wettest	Wettest since: 2008	1990
	Ties: 2003
Sep–Dec 2011 4-Month	0.16	-0.07	0.23	80th Driest	Driest since: 2010	1930
Sep–Dec 2011 4-Month	0.16	-0.07	0.23	51st Wettest	Wettest since: 2008	1986
Aug–Dec 2011 5-Month	0.30	-0.05	0.35	80th Driest	Driest since: 2010	1930
Aug–Dec 2011 5-Month	0.30	-0.05	0.35	51st Wettest	Wettest since: 2008	1986
Jul–Dec 2011 6-Month	0.23	0.02	0.21	78th Driest	Driest since: 2010	1930
Jul–Dec 2011 6-Month	0.23	0.02	0.21	53rd Wettest	Wettest since: 2008	1986
Jun–Dec 2011 7-Month	0.22	0.02	0.20	79th Driest	Driest since: 2010	1930
Jun–Dec 2011 7-Month	0.22	0.02	0.20	52nd Wettest	Wettest since: 2009	1986
May–Dec 2011 8-Month	0.51	0.05	0.46	90th Driest	Driest since: 2010	1930
	0.51	0.05	0.46	41st Wettest	Wettest since: 2008	1902
	Ties: 1924
Apr–Dec 2011 9-Month	1.02	0.07	0.95	107th Driest	Driest since: 2010	1930
Apr–Dec 2011 9-Month	1.02	0.07	0.95	24th Wettest	Wettest since: 2008	1996
Mar–Dec 2011 10-Month	1.09	0.06	1.03	110th Driest	Driest since: 2010	1930
Mar–Dec 2011 10-Month	1.09	0.06	1.03	21st Wettest	Wettest since: 2008	1902
Feb–Dec 2011 11-Month	1.08	0.06	1.02	114th Driest	Driest since: 2010	1930
	1.08	0.06	1.02	17th Wettest	Wettest since: 2008	1996
	Ties: 1926, 1950
Jan–Dec 2011 12-Month	0.93	0.07	0.86	108th Driest	Driest since: 2010	1930
Jan–Dec 2011 12-Month	0.93	0.07	0.86	23rd Wettest	Wettest since: 2008	1996
Jul 2010–Dec 2011 18-Month	0.41	0.05	0.36	90th Driest	Driest since: 2010	1931
Jul 2010–Dec 2011 18-Month	0.41	0.05	0.36	40th Wettest	Wettest since: 2009	1986
Jan 2010–Dec 2011 24-Month	0.19	0.06	0.13	75th Driest	Driest since: 2010	1931
	0.19	0.06	0.13	55th Wettest	Wettest since: 2009	1986
	Ties: 1909
Jan 2009–Dec 2011 36-Month	0.38	0.06	0.32	89th Driest	Driest since: 2007	1936
Jan 2009–Dec 2011 36-Month	0.38	0.06	0.32	40th Wettest	Wettest since: 2010	1986
Jan 2008–Dec 2011 48-Month	0.70	0.07	0.63	115th Driest	Driest since: 2010	1936
Jan 2008–Dec 2011 48-Month	0.70	0.07	0.63	13th Wettest	Wettest since: 2009	1986
Jan 2007–Dec 2011 60-Month	0.43	0.07	0.36	99th Driest	Driest since: 2007	1934
	0.43	0.07	0.36	28th Wettest	Wettest since: 2010	1986
	Ties: 1929

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 22, 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

December 2011 Palmer Z-Index Rankings

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