ValueAnomalyRankMean

Divisional Palmer Z-Index

December 1921 - February 1922

-4-3-2-11234

Michigan (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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December 1921 - February 1922 Michigan Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. West Upper	-0.39	-0.30	45	-0.09
2. East Upper	1.05	1.18	112	-0.13
3. Northwest Lower	0.63	0.70	101	-0.07
4. Northeast Lower	1.09	1.17	113	-0.08
5. West Central Lower	1.06	1.15	113	-0.09
6. Central Lower	0.86	0.85	101	0.01
7. East Central Lower	0.19	0.19	67	0.00
8. Southwest Lower	0.19	0.19	64	0.00
9. South Central Lower	0.37	0.36	76	0.02
10. Southeast Lower	-0.23	-0.22	41	-0.01

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published June 2025, retrieved on June 26, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping