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 1973 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1973 1-Month	0.74	-0.11	0.85	95th Driest	Driest since: 1969	1930
December 1973 1-Month	0.74	-0.11	0.85	36th Wettest	Wettest since: 1972	1972
Nov–Dec 1973 2-Month	0.85	-0.08	0.93	94th Driest	Driest since: 1971	1930
Nov–Dec 1973 2-Month	0.85	-0.08	0.93	37th Wettest	Wettest since: 1972	1959
Oct–Dec 1973 3-Month	0.31	-0.05	0.36	76th Driest	Driest since: 1971	1930
	0.31	-0.05	0.36	55th Wettest	Wettest since: 1972	1990
	Ties: 1925
Sep–Dec 1973 4-Month	-0.31	-0.07	-0.24	62nd Driest	Driest since: 1971	1930
Sep–Dec 1973 4-Month	-0.31	-0.07	-0.24	69th Wettest	Wettest since: 1972	1986
Aug–Dec 1973 5-Month	-0.54	-0.05	-0.49	50th Driest	Driest since: 1971	1930
Aug–Dec 1973 5-Month	-0.54	-0.05	-0.49	81st Wettest	Wettest since: 1972	1986
Jul–Dec 1973 6-Month	-0.50	0.02	-0.52	46th Driest	Driest since: 1971	1930
Jul–Dec 1973 6-Month	-0.50	0.02	-0.52	85th Wettest	Wettest since: 1972	1986
Jun–Dec 1973 7-Month	-0.19	0.02	-0.21	57th Driest	Driest since: 1971	1930
Jun–Dec 1973 7-Month	-0.19	0.02	-0.21	74th Wettest	Wettest since: 1972	1986
May–Dec 1973 8-Month	0.12	0.05	0.07	72nd Driest	Driest since: 1971	1930
May–Dec 1973 8-Month	0.12	0.05	0.07	59th Wettest	Wettest since: 1972	1902
Apr–Dec 1973 9-Month	0.00	0.07	-0.07	64th Driest	Driest since: 1971	1930
Apr–Dec 1973 9-Month	0.00	0.07	-0.07	67th Wettest	Wettest since: 1972	1996
Mar–Dec 1973 10-Month	0.18	0.06	0.12	72nd Driest	Driest since: 1971	1930
	0.18	0.06	0.12	59th Wettest	Wettest since: 1972	1902
	Ties: 1907
Feb–Dec 1973 11-Month	0.13	0.06	0.07	64th Driest	Driest since: 1971	1930
Feb–Dec 1973 11-Month	0.13	0.06	0.07	67th Wettest	Wettest since: 1972	1996
Jan–Dec 1973 12-Month	0.08	0.07	0.01	66th Driest	Driest since: 1971	1930
Jan–Dec 1973 12-Month	0.08	0.07	0.01	65th Wettest	Wettest since: 1972	1996
Jul 1972–Dec 1973 18-Month	0.65	0.05	0.60	103rd Driest	Driest since: 1972	1931
Jul 1972–Dec 1973 18-Month	0.65	0.05	0.60	27th Wettest	Wettest since: 1951	1986
Jan 1972–Dec 1973 24-Month	0.47	0.06	0.41	97th Driest	Driest since: 1972	1931
	0.47	0.06	0.41	33rd Wettest	Wettest since: 1968	1986
	Ties: 1957
Jan 1971–Dec 1973 36-Month	-0.01	0.06	-0.07	48th Driest	Driest since: 1971	1936
	-0.01	0.06	-0.07	81st Wettest	Wettest since: 1972	1986
	Ties: 1914, 1957
Jan 1970–Dec 1973 48-Month	0.04	0.07	-0.03	51st Driest	Driest since: 1972	1936
	0.04	0.07	-0.03	77th Wettest	Wettest since: 1970	1986
	Ties: 1898
Jan 1969–Dec 1973 60-Month	0.01	0.07	-0.06	47th Driest	Driest since: 1972	1934
Jan 1969–Dec 1973 60-Month	0.01	0.07	-0.06	80th Wettest	Wettest since: 1971	1986

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 28, 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 1973 Palmer Z-Index Rankings

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