Value Anomaly Rank Mean

Divisional Palmer Z-Index

October - December 1928

-4-3-2-11234

Montana (Hover over a Climate Division)

Z-Index Palmer Z-Index : --

Anomaly: --

Rank: -- Driest

Mean: --

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October - December 1928 Montana Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Western	-1.87	-1.86	18	0.00
2. Southwestern	-0.19	-0.46	55	0.27
3. North Central	-0.13	-0.20	55	0.08
4. Central	-0.34	-0.46	38	0.12
5. South Central	0.98	0.88	104	0.10
6. Northeastern	-0.76	-0.87	14	0.11
7. Southeastern	-0.21	-0.27	51	0.06

Citing This Page

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