NOAA's National Centers for Environmental Information
Divisional Mapping
Divisional Palmer Z-Index
October - December 2023
-4-3-2-11234
Washington (Hover over a Climate Division)
Z-IndexPalmer Z-Index: -0.83
Anomaly: -0.75
Rank: 40th Driest
Mean: -0.07
Climate Division | Value | Anomaly | Rank 130 Years | 1901- |
|---|---|---|---|---|
| 1. West Olympic Coast | -0.53 | -0.49 | 40 | -0.04 |
| 2. North East Olympic San Juan | -1.26 | -1.31 | 25 | 0.05 |
| 3. Puget Sound Lowlands | -0.62 | -0.53 | 43 | -0.09 |
| 4. East Olympic Cascade Foothills | -0.33 | -0.27 | 51 | -0.06 |
| 5. Cascade Mountains West | -0.53 | -0.46 | 45 | -0.07 |
| 6. East Slope Cascades | -0.99 | -0.95 | 31 | -0.04 |
| 7. Okanogan Big Bend | -0.25 | -0.19 | 60 | -0.06 |
| 8. Central Basin | 0.09 | 0.07 | 75 | 0.02 |
| 9. Northeastern | -1.21 | -1.03 | 34 | -0.19 |
| 10. Palouse Blue Mountains | -0.75 | -0.77 | 43 | 0.02 |
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published March 2025, retrieved on March 31, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping
