ValueRankAnomalyMean

Divisional Palmer Z-Index

September - November 1977

-4-3-2-11234

Oregon (Hover over a Climate Division)

Z-IndexPalmer Z-Index: 1.09

Rank: 23rd Wettest

Anomaly: 1.08

Mean: 0.01

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September - November 1977 Oregon Divisional Palmer Z-Index

Climate Division	Value	Rank 130 Years	Anomaly	1901-2000 Mean
1. Coastal Area	1.14	116	1.14	0.00
2. Willamette Valley	1.05	110	1.02	0.03
3. Southwestern Valleys	1.70	125	1.72	-0.02
4. Northern Cascades	0.98	110	0.97	0.02
5. High Plateau	1.44	123	1.42	0.02
6. North Central	0.70	97	0.63	0.07
7. South Central	0.67	100	0.60	0.07
8. Northeast	0.84	106	0.83	0.01
9. Southeast	0.17	84	0.19	-0.02

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published June 2025, retrieved on July 7, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping