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 4

October 1974 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
October 1974 1-Month	-0.57	-0.09	-0.48	50th Driest	Driest since: 1971	1908
October 1974 1-Month	-0.57	-0.09	-0.48	81st Wettest	Wettest since: 1973	1991
Sep–Oct 1974 2-Month	-0.23	-0.25	0.02	67th Driest	Driest since: 1973	1908
Sep–Oct 1974 2-Month	-0.23	-0.25	0.02	64th Wettest	Wettest since: 1972	1986
Aug–Oct 1974 3-Month	-0.15	-0.22	0.07	71st Driest	Driest since: 1973	1908
	-0.15	-0.22	0.07	60th Wettest	Wettest since: 1972	1986
	Ties: 1902, 1938
Jul–Oct 1974 4-Month	0.46	-0.14	0.60	88th Driest	Driest since: 1971	1955
	0.46	-0.14	0.60	43rd Wettest	Wettest since: 1973	1986
	Ties: 1917
Jun–Oct 1974 5-Month	0.73	-0.13	0.86	96th Driest	Driest since: 1973	1955
Jun–Oct 1974 5-Month	0.73	-0.13	0.86	35th Wettest	Wettest since: 1972	1986
May–Oct 1974 6-Month	0.69	-0.10	0.79	99th Driest	Driest since: 1971	1955
	0.69	-0.10	0.79	32nd Wettest	Wettest since: 1973	1986
	Ties: 1899
Apr–Oct 1974 7-Month	0.74	-0.07	0.81	106th Driest	Driest since: 1973	1955
Apr–Oct 1974 7-Month	0.74	-0.07	0.81	25th Wettest	Wettest since: 1972	2014
Mar–Oct 1974 8-Month	0.50	-0.06	0.56	98th Driest	Driest since: 1973	1955
Mar–Oct 1974 8-Month	0.50	-0.06	0.56	33rd Wettest	Wettest since: 1972	1986
Feb–Oct 1974 9-Month	0.44	-0.04	0.48	95th Driest	Driest since: 1973	1955
Feb–Oct 1974 9-Month	0.44	-0.04	0.48	36th Wettest	Wettest since: 1972	1986
Jan–Oct 1974 10-Month	0.68	-0.05	0.73	110th Driest	Driest since: 1973	1955
Jan–Oct 1974 10-Month	0.68	-0.05	0.73	21st Wettest	Wettest since: 1965	1975
Dec 1973–Oct 1974 11-Month	0.74	-0.06	0.80	112th Driest	Driest since: 1973	1955
	0.74	-0.06	0.80	18th Wettest	Wettest since: 1972	2020
	Ties: 1932
Nov 1973–Oct 1974 12-Month	0.65	-0.07	0.72	109th Driest	Driest since: 1973	1914
Nov 1973–Oct 1974 12-Month	0.65	-0.07	0.72	21st Wettest	Wettest since: 1972	2020
May 1973–Oct 1974 18-Month	0.75	-0.08	0.83	118th Driest	Driest since: 1973	1914
May 1973–Oct 1974 18-Month	0.75	-0.08	0.83	12th Wettest	Wettest since: 1969	2020
Nov 1972–Oct 1974 24-Month	0.62	-0.07	0.69	115th Driest	Driest since: 1972	1910
	0.62	-0.07	0.69	14th Wettest	Wettest since: 1973	2020
	Ties: 1969
Nov 1971–Oct 1974 36-Month	0.66	-0.06	0.72	119th Driest	Driest since: 1973	1910
Nov 1971–Oct 1974 36-Month	0.66	-0.06	0.72	9th Wettest	Wettest since: 1969	1986, 2020
Nov 1970–Oct 1974 48-Month	0.58	-0.05	0.63	121st Driest	Driest since: 1973	1911
Nov 1970–Oct 1974 48-Month	0.58	-0.05	0.63	6th Wettest	Wettest since: 1900	1986
Nov 1969–Oct 1974 60-Month	0.47	-0.05	0.52	115th Driest	Driest since: 1972	1911
Nov 1969–Oct 1974 60-Month	0.47	-0.05	0.52	11th Wettest	Wettest since: 1973	2020

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 4

October 1974 Palmer Z-Index Rankings

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