ValueAnomalyRankMean

Divisional Palmer Z-Index

December 1990 - February 1991

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Michigan (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -0.48

Anomaly: -0.42

Rank: 35th Driest

Mean: -0.07

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December 1990 - February 1991 Michigan Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. West Upper	-0.95	-0.86	19	-0.09
2. East Upper	-1.35	-1.22	11	-0.13
3. Northwest Lower	-0.57	-0.50	34	-0.07
4. Northeast Lower	-0.45	-0.36	44	-0.08
5. West Central Lower	-0.83	-0.74	24	-0.09
6. Central Lower	-0.25	-0.26	41	0.01
7. East Central Lower	0.15	0.15	64	0.00
8. Southwest Lower	-0.43	-0.43	36	0.00
9. South Central Lower	0.20	0.19	66	0.02
10. Southeast Lower	0.69	0.71	86	-0.01

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published March 2025, retrieved on March 28, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping