ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 1948

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Montana (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -0.16

Anomaly: -0.29

Rank: 45th Driest

Mean: 0.13

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October - December 1948 Montana Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Western	-0.04	-0.04	64	0.00
2. Southwestern	0.66	0.39	87	0.27
3. North Central	-0.98	-1.06	14	0.08
4. Central	-0.32	-0.44	41	0.12
5. South Central	-0.81	-0.91	28	0.10
6. Northeastern	0.10	-0.02	63	0.11
7. Southeastern	-0.38	-0.44	41	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