Divisional Mapping

Divisional Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska or Hawaii. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales. Data are available for bulk download.
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Divisional Palmer Z-Index
October - December 1991
-4-3-2-11234
Wyoming (Hover over a Climate Division)
Z-IndexPalmer Z-Index:
Rank:
Anomaly:
Mean:
October - December 1991 Wyoming Divisional Palmer Z-Index
Climate Division
Value
Rank
130 Years
Anomaly
1901-2000 Mean
1. Yellowstone Drainage0.51800.440.07
2. Snake Drainage-0.1963-0.09-0.10
3. Green and Bear Drainage0.15810.21-0.06
4. Big Horn0.68900.550.13
5. Powder, Little Mo and Tongue Drainages0.1368-0.070.21
6. Belle Fourche Drainage-0.4336-0.760.33
7. Cheyenne Niobrara Drainage-0.4934-0.740.25
8. Lower Platte-0.1951-0.490.30
9. Wind River0.14720.070.08
10. Upper Platte-0.2257-0.350.13

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