Divisional Mapping
Divisional Palmer Z-Index
September - November 1986
-4-3-2-11234
Oregon (Hover over a Climate Division)
Z-Index
Palmer Z-Index
:
--
Anomaly:
--
Rank:
-- Driest
Mean:
--

*Signifies a tie
**Insufficient variability in the data record renders rank insignificant
Climate Division
|
Value | Anomaly | Rank 130 Years | 1901- |
---|---|---|---|---|
1. Coastal Area | 0.92 | 0.91 | 107 | 0.00 |
2. Willamette Valley | 1.36 | 1.34 | 116 | 0.03 |
3. Southwestern Valleys | 1.65 | 1.67 | 123 | -0.02 |
4. Northern Cascades | 1.25 | 1.24 | 117 | 0.02 |
5. High Plateau | 0.65 | 0.63 | 96 | 0.02 |
6. North Central | 0.73 | 0.66 | 98 | 0.07 |
7. South Central | 0.56 | 0.49 | 93 | 0.07 |
8. Northeast | 0.70 | 0.69 | 102 | 0.01 |
9. Southeast | 0.12 | 0.14 | 80 | -0.02 |
Citing This Page
- NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published July 2025, retrieved on July 30, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping