Value Anomaly Rank Mean

Divisional Palmer Z-Index

September - November 1898

-4-3-2-11234

Oregon (Hover over a Climate Division)

Z-Index Palmer Z-Index : --

Anomaly: --

Rank: -- Driest

Mean: --

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September - November 1898 Oregon Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Coastal Area	0.39	0.38	91	0.00
2. Willamette Valley	0.78	0.75	101	0.03
3. Southwestern Valleys	0.05	0.07	73	-0.02
4. Northern Cascades	0.48	0.46	84	0.02
5. High Plateau	0.36	0.34	84	0.02
6. North Central	-0.04	-0.11	68	0.07
7. South Central	-0.04	-0.11	67	0.07
8. Northeast	-0.01	-0.01	71	0.01
9. Southeast	0.15	0.17	83	-0.02

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published July 2025, retrieved on July 29, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping