Value Anomaly Rank Mean

Divisional Palmer Z-Index

December 1952 - February 1953

-4-3-2-11234

Oregon (Hover over a Climate Division)

Z-Index Palmer Z-Index : --

Anomaly: --

Rank: -- Driest

Mean: --

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*Signifies a tie

**Insufficient variability in the data record renders rank insignificant

December 1952 - February 1953 Oregon Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Coastal Area	1.97	2.02	127	-0.04
2. Willamette Valley	2.05	2.10	127	-0.05
3. Southwestern Valleys	2.40	2.44	127	-0.04
4. Northern Cascades	2.57	2.63	130	-0.07
5. High Plateau	2.14	2.11	121	0.02
6. North Central	1.33	1.26	104	0.07
7. South Central	1.11	1.03	94	0.08
8. Northeast	0.85	0.74	93	0.11
9. Southeast	-0.43	-0.55	51	0.12

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published August 2025, retrieved on August 15, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping