ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 1937

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Washington (Hover over a Climate Division)

Z-IndexPalmer Z-Index: 1.37

Anomaly: 1.45

Rank: 19th Wettest

Mean: -0.07

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October - December 1937 Washington Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. West Olympic Coast	1.13	1.17	105	-0.04
2. North East Olympic San Juan	0.52	0.47	75	0.05
3. Puget Sound Lowlands	1.05	1.15	103	-0.09
4. East Olympic Cascade Foothills	1.23	1.30	109	-0.06
5. Cascade Mountains West	0.99	1.05	106	-0.07
6. East Slope Cascades	1.29	1.33	110	-0.04
7. Okanogan Big Bend	1.03	1.09	108	-0.06
8. Central Basin	1.14	1.12	104	0.02
9. Northeastern	1.39	1.58	111	-0.19
10. Palouse Blue Mountains	0.24	0.22	74	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