ValueAnomalyRankMean

Divisional Palmer Z-Index Rank (130 years)

October - December 1923

Driest⇣⅒⇣ ⅓Near Normal⇡ ⅓⇡⅒Wettest

Washington (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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October - December 1923 Washington Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. West Olympic Coast	-1.22	-1.18	16	-0.04
2. North East Olympic San Juan	-1.50	-1.55	20	0.05
3. Puget Sound Lowlands	-1.52	-1.42	19	-0.09
4. East Olympic Cascade Foothills	-1.13	-1.06	24	-0.06
5. Cascade Mountains West	-0.69	-0.62	40	-0.07
6. East Slope Cascades	0.00	0.04	64	-0.04
7. Okanogan Big Bend	-0.88	-0.82	32	-0.06
8. Central Basin	-0.42	-0.44	50	0.02
9. Northeastern	-1.70	-1.51	18	-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 April 3, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping