ValueAnomalyRankMean

Divisional Palmer Z-Index

August - October 1999

-4-3-2-11234

Michigan (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -1.04

Anomaly: -0.91

Rank: 34th Driest

Mean: -0.12

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August - October 1999 Michigan Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. West Upper	-0.25	-0.13	65	-0.12
2. East Upper	0.19	0.32	79	-0.13
3. Northwest Lower	-0.58	-0.36	53	-0.22
4. Northeast Lower	-1.52	-1.29	23	-0.22
5. West Central Lower	-0.43	-0.29	57	-0.14
6. Central Lower	-0.22	-0.07	70	-0.15
7. East Central Lower	-0.92	-0.90	36	-0.02
8. Southwest Lower	-1.91	-1.84	11	-0.07
9. South Central Lower	-1.58	-1.60	15	0.02
10. Southeast Lower	-1.28	-1.31	24	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