ValueAnomalyRankMean

Divisional Palmer Z-Index Rank (130 years)

August - October 1956

Driest⇣⅒⇣ ⅓Near Normal⇡ ⅓⇡⅒Wettest

Oregon (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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August - October 1956 Oregon Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Coastal Area	1.05	1.14	111	-0.09
2. Willamette Valley	0.76	0.83	105	-0.07
3. Southwestern Valleys	1.28	1.34	119	-0.06
4. Northern Cascades	0.66	0.72	103	-0.05
5. High Plateau	1.67	1.66	127	0.01
6. North Central	0.33	0.35	87	-0.02
7. South Central	1.32	1.26	118	0.05
8. Northeast	1.20	1.26	116	-0.06
9. Southeast	1.38	1.40	119	-0.01

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published April 2025, retrieved on April 13, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping