ValueRankAnomalyMean

Divisional Palmer Z-Index

October - December 1909

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Washington (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Rank:

Anomaly:

Mean:

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October - December 1909 Washington Divisional Palmer Z-Index

Climate Division	Value	Rank 130 Years	Anomaly	1901-2000 Mean
1. West Olympic Coast	1.22	107	1.26	-0.04
2. North East Olympic San Juan	1.86	108	1.81	0.05
3. Puget Sound Lowlands	1.01	101	1.11	-0.09
4. East Olympic Cascade Foothills	0.89	103	0.96	-0.06
5. Cascade Mountains West	0.74	95	0.80	-0.07
6. East Slope Cascades	1.52	114	1.56	-0.04
7. Okanogan Big Bend	0.68	96	0.74	-0.06
8. Central Basin	1.25	108	1.23	0.02
9. Northeastern	0.48	88	0.67	-0.19
10. Palouse Blue Mountains	1.85	113	1.83	0.02

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published July 2025, retrieved on July 12, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping