ValueAnomalyRankMean

Divisional Palmer Z-Index

November 1963 - January 1964

-4-3-2-11234

Wyoming (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -1.19

Anomaly: -1.27

Rank: 22nd Driest

Mean: 0.08

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November 1963 - January 1964 Wyoming Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Yellowstone Drainage	-0.18	-0.27	55	0.09
2. Snake Drainage	0.04	0.12	77	-0.07
3. Green and Bear Drainage	-1.07	-0.95	27	-0.11
4. Big Horn	-0.92	-0.99	29	0.07
5. Powder, Little Mo and Tongue Drainages	-0.98	-1.09	23	0.12
6. Belle Fourche Drainage	-1.07	-1.31	11	0.24
7. Cheyenne Niobrara Drainage	-1.14	-1.29	4	0.14
8. Lower Platte	-1.45	-1.60	3	0.15
9. Wind River	-1.05	-1.09	20	0.04
10. Upper Platte	-1.47	-1.50	14	0.04

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published April 2025, retrieved on April 17, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping