Value Anomaly Rank Mean

Divisional Palmer Z-Index

November 1984 - January 1985

-4-3-2-11234

Oregon (Hover over a Climate Division)

Z-Index Palmer Z-Index : --

Anomaly: --

Rank: -- Driest

Mean: --

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*Signifies a tie

**Insufficient variability in the data record renders rank insignificant

November 1984 - January 1985 Oregon Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Coastal Area	-0.98	-0.95	27	-0.03
2. Willamette Valley	-0.75	-0.72	39	-0.03
3. Southwestern Valleys	-0.62	-0.56	56	-0.05
4. Northern Cascades	-0.43	-0.38	51	-0.05
5. High Plateau	-0.08	-0.03	71	-0.05
6. North Central	0.89	0.83	94	0.06
7. South Central	1.18	1.16	102	0.01
8. Northeast	0.73	0.60	80	0.13
9. Southeast	0.21	0.19	75	0.02

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published July 2025, retrieved on August 4, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping