ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 1948

-4-3-2-11234

Washington (Hover over a Climate Division)

Z-IndexPalmer Z-Index: 1.03

Anomaly: 1.10

Rank: 29th Wettest

Mean: -0.07

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October - December 1948 Washington Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. West Olympic Coast	0.37	0.40	79	-0.04
2. North East Olympic San Juan	1.72	1.67	104	0.05
3. Puget Sound Lowlands	0.81	0.90	96	-0.09
4. East Olympic Cascade Foothills	0.72	0.78	95	-0.06
5. Cascade Mountains West	0.71	0.78	94	-0.07
6. East Slope Cascades	1.19	1.23	106	-0.04
7. Okanogan Big Bend	0.52	0.58	87	-0.06
8. Central Basin	0.28	0.27	82	0.02
9. Northeastern	0.66	0.85	95	-0.19
10. Palouse Blue Mountains	0.71	0.69	89	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