ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 2022

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Wyoming (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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October - December 2022 Wyoming Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Yellowstone Drainage	0.45	0.38	78	0.07
2. Snake Drainage	-0.22	-0.13	62	-0.10
3. Green and Bear Drainage	-0.01	0.06	69	-0.06
4. Big Horn	-0.06	-0.19	52	0.13
5. Powder, Little Mo and Tongue Drainages	-0.03	-0.24	64	0.21
6. Belle Fourche Drainage	-0.34	-0.67	41	0.33
7. Cheyenne Niobrara Drainage	-0.95	-1.20	12	0.25
8. Lower Platte	-0.87	-1.17	20	0.30
9. Wind River	0.32	0.24	77	0.08
10. Upper Platte	-0.10	-0.23	62	0.13

Citing This Page

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