ValueRankAnomalyMean

Divisional Palmer Z-Index

December 1997 - February 1998

-4-3-2-11234

Oregon (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Rank:

Anomaly:

Mean:

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December 1997 - February 1998 Oregon Divisional Palmer Z-Index

Climate Division	Value	Rank 130 Years	Anomaly	1901-2000 Mean
1. Coastal Area	0.75	102	0.79	-0.04
2. Willamette Valley	-0.11	69	-0.06	-0.05
3. Southwestern Valleys	0.51	90	0.55	-0.04
4. Northern Cascades	-0.38	53	-0.31	-0.07
5. High Plateau	0.88	97	0.86	0.02
6. North Central	-0.82	35	-0.89	0.07
7. South Central	0.16	74	0.08	0.08
8. Northeast	-0.53	42	-0.65	0.11
9. Southeast	0.30	74	0.18	0.12

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published July 2025, retrieved on July 16, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping