Value Anomaly Rank Mean

Divisional Palmer Z-Index

November 1911 - January 1912

-4-3-2-11234

Oregon (Hover over a Climate Division)

Z-Index Palmer Z-Index : --

Anomaly: --

Rank: -- Driest

Mean: --

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**Insufficient variability in the data record renders rank insignificant

November 1911 - January 1912 Oregon Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Coastal Area	-0.39	-0.37	53	-0.03
2. Willamette Valley	-0.33	-0.30	56	-0.03
3. Southwestern Valleys	0.03	0.08	73	-0.05
4. Northern Cascades	-0.08	-0.03	67	-0.05
5. High Plateau	-0.30	-0.24	67	-0.05
6. North Central	-0.93	-0.99	36	0.06
7. South Central	-0.23	-0.25	63	0.01
8. Northeast	0.93	0.80	87	0.13
9. Southeast	0.69	0.67	93	0.02

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published July 2025, retrieved on August 5, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping