ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 1999

-4-3-2-11234

Michigan (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -2.31

Anomaly: -2.20

Rank: 12th Driest

Mean: -0.11

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October - December 1999 Michigan Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. West Upper	-0.75	-0.63	39	-0.12
2. East Upper	-0.86	-0.72	32	-0.15
3. Northwest Lower	-1.31	-1.12	26	-0.19
4. Northeast Lower	-2.56	-2.38	7	-0.18
5. West Central Lower	-1.71	-1.56	17	-0.15
6. Central Lower	-1.68	-1.55	18	-0.13
7. East Central Lower	-2.04	-2.00	9	-0.05
8. Southwest Lower	-2.64	-2.60	3	-0.04
9. South Central Lower	-2.17	-2.20	9	0.03
10. Southeast Lower	-1.89	-1.86	15	-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