Value Anomaly Rank Mean

Divisional Palmer Z-Index

October - December 1904

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Washington (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

October - December 1904 Washington Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. West Olympic Coast	0.40	0.43	80	-0.04
2. North East Olympic San Juan	-0.63	-0.68	47	0.05
3. Puget Sound Lowlands	-0.40	-0.31	50	-0.09
4. East Olympic Cascade Foothills	-0.04	0.02	63	-0.06
5. Cascade Mountains West	-0.32	-0.25	53	-0.07
6. East Slope Cascades	-0.50	-0.46	50	-0.04
7. Okanogan Big Bend	-0.92	-0.86	29	-0.06
8. Central Basin	-1.61	-1.63	5	0.02
9. Northeastern	-1.46	-1.27	24	-0.19
10. Palouse Blue Mountains	-2.24	-2.26	7	0.02

Citing This Page

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