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 2006 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
October 2006 1-Month	2.85	0.02	2.83	122nd Driest	Driest since: 2005	1963
October 2006 1-Month	2.85	0.02	2.83	9th Wettest	Wettest since: 2001	1954
Sep–Oct 2006 2-Month	1.37	-0.07	1.44	106th Driest	Driest since: 2005	1908
Sep–Oct 2006 2-Month	1.37	-0.07	1.44	25th Wettest	Wettest since: 2001	1986
Aug–Oct 2006 3-Month	0.93	-0.02	0.95	100th Driest	Driest since: 2005	1930
Aug–Oct 2006 3-Month	0.93	-0.02	0.95	31st Wettest	Wettest since: 2001	1986
Jul–Oct 2006 4-Month	1.23	0.07	1.16	106th Driest	Driest since: 2005	1930
	1.23	0.07	1.16	25th Wettest	Wettest since: 2000	1986
	Ties: 2000
Jun–Oct 2006 5-Month	0.86	0.06	0.80	96th Driest	Driest since: 2005	1930
Jun–Oct 2006 5-Month	0.86	0.06	0.80	35th Wettest	Wettest since: 2000	1986
May–Oct 2006 6-Month	0.90	0.09	0.81	103rd Driest	Driest since: 2005	1934
May–Oct 2006 6-Month	0.90	0.09	0.81	28th Wettest	Wettest since: 2000	1986
Apr–Oct 2006 7-Month	0.68	0.11	0.57	90th Driest	Driest since: 2005	1934
Apr–Oct 2006 7-Month	0.68	0.11	0.57	41st Wettest	Wettest since: 2000	1986
Mar–Oct 2006 8-Month	0.76	0.10	0.66	97th Driest	Driest since: 2005	1934
Mar–Oct 2006 8-Month	0.76	0.10	0.66	34th Wettest	Wettest since: 2000	1902
Feb–Oct 2006 9-Month	0.77	0.09	0.68	98th Driest	Driest since: 2005	1934
	0.77	0.09	0.68	33rd Wettest	Wettest since: 2000	1986
	Ties: 1959
Jan–Oct 2006 10-Month	1.07	0.09	0.98	115th Driest	Driest since: 2005	1931
Jan–Oct 2006 10-Month	1.07	0.09	0.98	16th Wettest	Wettest since: 1996	1986
Dec 2005–Oct 2006 11-Month	1.02	0.07	0.95	116th Driest	Driest since: 2005	1931
Dec 2005–Oct 2006 11-Month	1.02	0.07	0.95	14th Wettest	Wettest since: 1997	1986
Nov 2005–Oct 2006 12-Month	1.01	0.06	0.95	116th Driest	Driest since: 2005	1931
Nov 2005–Oct 2006 12-Month	1.01	0.06	0.95	14th Wettest	Wettest since: 1997	1986
May 2005–Oct 2006 18-Month	0.60	0.07	0.53	104th Driest	Driest since: 2005	1931
May 2005–Oct 2006 18-Month	0.60	0.07	0.53	26th Wettest	Wettest since: 2001	1903
Nov 2004–Oct 2006 24-Month	0.50	0.06	0.44	101st Driest	Driest since: 2005	1931
	0.50	0.06	0.44	28th Wettest	Wettest since: 1997	1986
	Ties: 1974
Nov 2003–Oct 2006 36-Month	0.52	0.07	0.45	102nd Driest	Driest since: 2005	1965
Nov 2003–Oct 2006 36-Month	0.52	0.07	0.45	26th Wettest	Wettest since: 1998	1986
Nov 2002–Oct 2006 48-Month	0.18	0.07	0.11	68th Driest	Driest since: 2005	1966
Nov 2002–Oct 2006 48-Month	0.18	0.07	0.11	59th Wettest	Wettest since: 1999	1986
Nov 2001–Oct 2006 60-Month	0.16	0.07	0.09	69th Driest	Driest since: 2005	1934
Nov 2001–Oct 2006 60-Month	0.16	0.07	0.09	57th Wettest	Wettest since: 2000	1986

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on April 2, 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 2006 Palmer Z-Index Rankings

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