ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 1898

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Oregon (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -0.75

Anomaly: -0.66

Rank: 49th Driest

Mean: -0.10

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October - December 1898 Oregon Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Coastal Area	-1.09	-0.98	19	-0.11
2. Willamette Valley	-0.70	-0.62	37	-0.08
3. Southwestern Valleys	-1.12	-0.99	22	-0.13
4. Northern Cascades	-0.73	-0.64	34	-0.09
5. High Plateau	-0.38	-0.27	63	-0.11
6. North Central	-0.49	-0.49	48	0.01
7. South Central	-0.10	-0.07	64	-0.03
8. Northeast	-0.23	-0.25	60	0.03
9. Southeast	-0.07	-0.04	62	-0.03

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published March 2025, retrieved on March 27, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping