ValueRankAnomalyMean

Divisional Palmer Z-Index

October - December 1992

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Wyoming (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Rank:

Anomaly:

Mean:

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October - December 1992 Wyoming Divisional Palmer Z-Index

Climate Division	Value	Rank 130 Years	Anomaly	1901-2000 Mean
1. Yellowstone Drainage	0.14	63	0.07	0.07
2. Snake Drainage	-0.82	34	-0.72	-0.10
3. Green and Bear Drainage	-0.28	58	-0.22	-0.06
4. Big Horn	0.01	57	-0.12	0.13
5. Powder, Little Mo and Tongue Drainages	-0.31	49	-0.51	0.21
6. Belle Fourche Drainage	-0.29	49	-0.62	0.33
7. Cheyenne Niobrara Drainage	-0.01	62	-0.26	0.25
8. Lower Platte	0.21	72	-0.08	0.30
9. Wind River	-0.64	31	-0.72	0.08
10. Upper Platte	-0.09	63	-0.23	0.13

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published July 2025, retrieved on July 14, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping