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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 10

December 1986 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1986 1-Month	0.45	-0.12	0.57	80th Driest	Driest since: 1985	1930
December 1986 1-Month	0.45	-0.12	0.57	51st Wettest	Wettest since: 1984	1967
Nov–Dec 1986 2-Month	0.70	-0.08	0.78	84th Driest	Driest since: 1984	1930
Nov–Dec 1986 2-Month	0.70	-0.08	0.78	47th Wettest	Wettest since: 1985	1992
Oct–Dec 1986 3-Month	1.18	-0.03	1.21	100th Driest	Driest since: 1984	1963
	1.18	-0.03	1.21	31st Wettest	Wettest since: 1985	1990
	Ties: 1906
Sep–Dec 1986 4-Month	2.71	0.00	2.71	128th Driest	Driest since: 1985	1963
Sep–Dec 1986 4-Month	2.71	0.00	2.71	3rd Wettest	Wettest since: 1981	1981
Aug–Dec 1986 5-Month	2.45	-0.01	2.46	127th Driest	Driest since: 1985	1930
Aug–Dec 1986 5-Month	2.45	-0.01	2.46	4th Wettest	Wettest since: 1981	1992
Jul–Dec 1986 6-Month	2.18	0.02	2.16	126th Driest	Driest since: 1985	1930
Jul–Dec 1986 6-Month	2.18	0.02	2.16	5th Wettest	Wettest since: 1981	1992
Jun–Dec 1986 7-Month	2.24	0.02	2.22	126th Driest	Driest since: 1985	1930
Jun–Dec 1986 7-Month	2.24	0.02	2.22	5th Wettest	Wettest since: 1902	2021
May–Dec 1986 8-Month	1.77	0.03	1.74	122nd Driest	Driest since: 1985	1934
May–Dec 1986 8-Month	1.77	0.03	1.74	9th Wettest	Wettest since: 1981	2000
Apr–Dec 1986 9-Month	1.46	0.03	1.43	121st Driest	Driest since: 1985	1934
Apr–Dec 1986 9-Month	1.46	0.03	1.43	10th Wettest	Wettest since: 1981	2000
Mar–Dec 1986 10-Month	1.23	0.02	1.21	118th Driest	Driest since: 1985	1934
Mar–Dec 1986 10-Month	1.23	0.02	1.21	13th Wettest	Wettest since: 1981	2011
Feb–Dec 1986 11-Month	1.28	0.02	1.26	120th Driest	Driest since: 1985	1934
Feb–Dec 1986 11-Month	1.28	0.02	1.26	11th Wettest	Wettest since: 1981	2011
Jan–Dec 1986 12-Month	1.12	0.03	1.09	119th Driest	Driest since: 1984	1934
Jan–Dec 1986 12-Month	1.12	0.03	1.09	12th Wettest	Wettest since: 1985	2011
Jul 1985–Dec 1986 18-Month	1.43	0.02	1.41	129th Driest	Driest since: 1985	1931
	1.43	0.02	1.41	1st Wettest	Wettest since: 1981	1981, 1986
	Ties: 1981
Jan 1985–Dec 1986 24-Month	1.18	0.02	1.16	127th Driest	Driest since: 1985	1931
Jan 1985–Dec 1986 24-Month	1.18	0.02	1.16	3rd Wettest	Wettest since: 1951	1951
Jan 1984–Dec 1986 36-Month	0.70	0.02	0.68	114th Driest	Driest since: 1985	1964
Jan 1984–Dec 1986 36-Month	0.70	0.02	0.68	15th Wettest	Wettest since: 1982	1951
Jan 1983–Dec 1986 48-Month	0.66	0.02	0.64	116th Driest	Driest since: 1985	1934
Jan 1983–Dec 1986 48-Month	0.66	0.02	0.64	12th Wettest	Wettest since: 1983	2011
Jan 1982–Dec 1986 60-Month	0.57	0.02	0.55	115th Driest	Driest since: 1984	1934
Jan 1982–Dec 1986 60-Month	0.57	0.02	0.55	12th Wettest	Wettest since: 1985	1951

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 10

December 1986 Palmer Z-Index Rankings

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