ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 1955

-4-3-2-11234

Montana (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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October - December 1955 Montana Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Western	3.18	3.19	126	0.00
2. Southwestern	1.87	1.60	116	0.27
3. North Central	0.22	0.14	76	0.08
4. Central	1.06	0.93	105	0.12
5. South Central	1.21	1.10	113	0.10
6. Northeastern	-0.31	-0.42	36	0.11
7. Southeastern	-0.14	-0.20	58	0.06

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published March 2025, retrieved on April 3, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping