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 1978 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
October 1978 1-Month	0.12	-0.09	0.21	71st Driest	Driest since: 1977	1908
October 1978 1-Month	0.12	-0.09	0.21	60th Wettest	Wettest since: 1973	1991
Sep–Oct 1978 2-Month	2.09	-0.25	2.34	122nd Driest	Driest since: 1977	1908
Sep–Oct 1978 2-Month	2.09	-0.25	2.34	9th Wettest	Wettest since: 1965	1986
Aug–Oct 1978 3-Month	1.14	-0.22	1.36	109th Driest	Driest since: 1976	1908
Aug–Oct 1978 3-Month	1.14	-0.22	1.36	22nd Wettest	Wettest since: 1977	1986
Jul–Oct 1978 4-Month	0.45	-0.14	0.59	86th Driest	Driest since: 1976	1955
Jul–Oct 1978 4-Month	0.45	-0.14	0.59	45th Wettest	Wettest since: 1977	1986
Jun–Oct 1978 5-Month	0.04	-0.13	0.17	76th Driest	Driest since: 1976	1955
Jun–Oct 1978 5-Month	0.04	-0.13	0.17	55th Wettest	Wettest since: 1977	1986
May–Oct 1978 6-Month	-0.05	-0.10	0.05	66th Driest	Driest since: 1977	1955
May–Oct 1978 6-Month	-0.05	-0.10	0.05	65th Wettest	Wettest since: 1975	1986
Apr–Oct 1978 7-Month	-0.09	-0.07	-0.02	59th Driest	Driest since: 1977	1955
Apr–Oct 1978 7-Month	-0.09	-0.07	-0.02	72nd Wettest	Wettest since: 1975	2014
Mar–Oct 1978 8-Month	-0.32	-0.06	-0.26	44th Driest	Driest since: 1976	1955
Mar–Oct 1978 8-Month	-0.32	-0.06	-0.26	87th Wettest	Wettest since: 1977	1986
Feb–Oct 1978 9-Month	-0.45	-0.04	-0.41	35th Driest	Driest since: 1966	1955
Feb–Oct 1978 9-Month	-0.45	-0.04	-0.41	96th Wettest	Wettest since: 1977	1986
Jan–Oct 1978 10-Month	-0.21	-0.05	-0.16	49th Driest	Driest since: 1977	1955
Jan–Oct 1978 10-Month	-0.21	-0.05	-0.16	82nd Wettest	Wettest since: 1975	1975
Dec 1977–Oct 1978 11-Month	-0.02	-0.06	0.04	62nd Driest	Driest since: 1977	1955
Dec 1977–Oct 1978 11-Month	-0.02	-0.06	0.04	68th Wettest	Wettest since: 1975	2020
Nov 1977–Oct 1978 12-Month	0.10	-0.07	0.17	73rd Driest	Driest since: 1977	1914
	0.10	-0.07	0.17	57th Wettest	Wettest since: 1975	2020
	Ties: 1950
May 1977–Oct 1978 18-Month	0.00	-0.08	0.08	62nd Driest	Driest since: 1977	1914
May 1977–Oct 1978 18-Month	0.00	-0.08	0.08	68th Wettest	Wettest since: 1976	2020
Nov 1976–Oct 1978 24-Month	-0.52	-0.07	-0.45	26th Driest	Driest since: 1977	1910
Nov 1976–Oct 1978 24-Month	-0.52	-0.07	-0.45	103rd Wettest	Wettest since: 1976	2020
Nov 1975–Oct 1978 36-Month	-0.41	-0.06	-0.35	27th Driest	Driest since: 1964	1910
	-0.41	-0.06	-0.35	101st Wettest	Wettest since: 1977	1986, 2020
	Ties: 1913, 1927
Nov 1974–Oct 1978 48-Month	-0.06	-0.05	-0.01	57th Driest	Driest since: 1966	1911
Nov 1974–Oct 1978 48-Month	-0.06	-0.05	-0.01	70th Wettest	Wettest since: 1977	1986
Nov 1973–Oct 1978 60-Month	0.08	-0.05	0.13	73rd Driest	Driest since: 1967	1911
Nov 1973–Oct 1978 60-Month	0.08	-0.05	0.13	53rd Wettest	Wettest since: 1977	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 1978 Palmer Z-Index Rankings

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