ValueAnomalyRankMean

Divisional Palmer Z-Index

November 1931 - January 1932

-4-3-2-11234

Montana (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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November 1931 - January 1932 Montana Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Western	-1.01	-1.01	36	0.00
2. Southwestern	-1.14	-1.48	33	0.34
3. North Central	-0.08	-0.15	68	0.07
4. Central	-0.84	-0.96	30	0.13
5. South Central	-1.07	-1.15	28	0.08
6. Northeastern	-0.65	-0.71	14	0.06
7. Southeastern	-0.06	-0.11	65	0.04

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published June 2025, retrieved on June 16, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping