ValueRankAnomalyMean

Divisional Palmer Z-Index Anomaly

September - November 1966

-7-5-3-11357

Wyoming (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Rank:

Anomaly:

Mean:

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September - November 1966 Wyoming Divisional Palmer Z-Index

Climate Division	Value	Rank 130 Years	Anomaly	1901-2000 Mean
1. Yellowstone Drainage	0.00	70	-0.06	0.06
2. Snake Drainage	-0.15	64	-0.14	-0.01
3. Green and Bear Drainage	0.01	67	-0.04	0.05
4. Big Horn	-0.44	49	-0.58	0.14
5. Powder, Little Mo and Tongue Drainages	-0.02	68	-0.23	0.20
6. Belle Fourche Drainage	0.66	87	0.34	0.32
7. Cheyenne Niobrara Drainage	0.22	73	-0.04	0.27
8. Lower Platte	0.19	70	-0.13	0.32
9. Wind River	0.26	80	0.17	0.10
10. Upper Platte	0.18	70	-0.03	0.20

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published June 2025, retrieved on July 5, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping