ValueRankAnomalyMean

Divisional Palmer Z-Index

December 2022 - February 2023

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Oregon (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -1.06

Rank: 29th Driest

Anomaly: -1.06

Mean: 0.00

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December 2022 - February 2023 Oregon Divisional Palmer Z-Index

Climate Division	Value	Rank 130 Years	Anomaly	1901-2000 Mean
1. Coastal Area	-0.97	34	-0.92	-0.04
2. Willamette Valley	-1.49	20	-1.44	-0.05
3. Southwestern Valleys	-0.86	38	-0.83	-0.04
4. Northern Cascades	-1.17	23	-1.11	-0.07
5. High Plateau	-0.58	50	-0.61	0.02
6. North Central	-0.63	44	-0.70	0.07
7. South Central	-0.24	58	-0.31	0.08
8. Northeast	-1.11	23	-1.23	0.11
9. Southeast	1.23	102	1.11	0.12

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published July 2025, retrieved on July 17, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping