ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 1998

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Oregon (Hover over a Climate Division)

Z-IndexPalmer Z-Index: 1.38

Anomaly: 1.48

Rank: 19th Wettest

Mean: -0.10

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October - December 1998 Oregon Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Coastal Area	1.62	1.73	123	-0.11
2. Willamette Valley	1.53	1.62	121	-0.08
3. Southwestern Valleys	1.27	1.40	115	-0.13
4. Northern Cascades	1.35	1.44	120	-0.09
5. High Plateau	0.98	1.09	104	-0.11
6. North Central	0.80	0.79	91	0.01
7. South Central	0.99	1.02	106	-0.03
8. Northeast	0.72	0.70	90	0.03
9. Southeast	-0.13	-0.11	59	-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