ValueRankAnomalyMean

Divisional Palmer Z-Index

October - December 1931

-4-3-2-11234

Wyoming (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Rank:

Anomaly:

Mean:

Text Labels

Download: CSV JSON XML

October - December 1931 Wyoming Divisional Palmer Z-Index

Climate Division	Value	Rank 130 Years	Anomaly	1901-2000 Mean
1. Yellowstone Drainage	-1.42	19	-1.49	0.07
2. Snake Drainage	-0.75	37	-0.65	-0.10
3. Green and Bear Drainage	-0.51	48	-0.45	-0.06
4. Big Horn	-0.59	33	-0.72	0.13
5. Powder, Little Mo and Tongue Drainages	-0.36	47	-0.57	0.21
6. Belle Fourche Drainage	0.17	73	-0.16	0.33
7. Cheyenne Niobrara Drainage	0.95	103	0.70	0.25
8. Lower Platte	0.38	76	0.08	0.30
9. Wind River	-0.26	47	-0.34	0.08
10. Upper Platte	-0.03	67	-0.16	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