ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 1937

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Montana (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -0.55

Anomaly: -0.68

Rank: 35th Driest

Mean: 0.13

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October - December 1937 Montana Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Western	-0.84	-0.84	41	0.00
2. Southwestern	-1.42	-1.69	15	0.27
3. North Central	-0.45	-0.52	39	0.08
4. Central	0.00	-0.13	53	0.12
5. South Central	-0.10	-0.20	53	0.10
6. Northeastern	0.40	0.29	77	0.11
7. Southeastern	-0.25	-0.31	50	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