ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 1921

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Washington (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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October - December 1921 Washington Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. West Olympic Coast	0.72	0.76	94	-0.04
2. North East Olympic San Juan	2.64	2.59	123	0.05
3. Puget Sound Lowlands	1.30	1.40	107	-0.09
4. East Olympic Cascade Foothills	0.74	0.81	97	-0.06
5. Cascade Mountains West	0.52	0.59	87	-0.07
6. East Slope Cascades	0.92	0.96	97	-0.04
7. Okanogan Big Bend	0.24	0.30	75	-0.06
8. Central Basin	1.42	1.40	113	0.02
9. Northeastern	-0.45	-0.27	58	-0.19
10. Palouse Blue Mountains	0.43	0.41	80	0.02

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published March 2025, retrieved on March 31, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping