ValueAnomalyRankMean

Divisional Palmer Z-Index

September - November 1989

-4-3-2-11234

Michigan (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -1.50

Anomaly: -1.40

Rank: 29th Driest

Mean: -0.10

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September - November 1989 Michigan Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. West Upper	-2.86	-2.76	7	-0.10
2. East Upper	-2.42	-2.29	10	-0.12
3. Northwest Lower	-2.28	-2.05	11	-0.23
4. Northeast Lower	-2.37	-2.13	13	-0.24
5. West Central Lower	-2.05	-1.91	11	-0.13
6. Central Lower	-1.55	-1.39	23	-0.16
7. East Central Lower	-0.19	-0.13	71	-0.06
8. Southwest Lower	-0.17	-0.15	61	-0.02
9. South Central Lower	0.61	0.56	83	0.05
10. Southeast Lower	1.06	1.03	94	0.03

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published March 2025, retrieved on March 27, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping