ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 1998

-4-3-2-11234

Washington (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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October - December 1998 Washington Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. West Olympic Coast	2.35	2.39	129	-0.04
2. North East Olympic San Juan	1.70	1.65	103	0.05
3. Puget Sound Lowlands	1.99	2.08	121	-0.09
4. East Olympic Cascade Foothills	2.04	2.10	126	-0.06
5. Cascade Mountains West	1.84	1.91	122	-0.07
6. East Slope Cascades	1.21	1.25	108	-0.04
7. Okanogan Big Bend	0.59	0.65	91	-0.06
8. Central Basin	0.10	0.08	76	0.02
9. Northeastern	1.02	1.20	106	-0.19
10. Palouse Blue Mountains	0.78	0.76	93	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