Value Anomaly Rank Mean

Divisional Palmer Z-Index

October - December 1975

-4-3-2-11234

Virginia (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

October - December 1975 Virginia Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Tidewater	0.44	0.53	82	-0.09
2. Eastern Piedmont	-0.33	-0.19	54	-0.14
3. Western Piedmont	-0.38	-0.26	50	-0.12
4. Northern	-0.41	-0.25	58	-0.16
5. Central Mountain	-0.34	-0.25	56	-0.08
6. Southwestern Mountain	-0.19	-0.20	57	0.01

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published July 2025, retrieved on August 3, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping