ValueAnomalyRankMean

Divisional Palmer Z-Index

October - December 2021

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Virginia (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -2.00

Anomaly: -1.89

Rank: 9th Driest

Mean: -0.11

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October - December 2021 Virginia Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Tidewater	-1.63	-1.54	16	-0.09
2. Eastern Piedmont	-2.29	-2.15	5	-0.14
3. Western Piedmont	-2.66	-2.54	2	-0.12
4. Northern	-1.63	-1.47	15	-0.16
5. Central Mountain	-1.66	-1.57	16	-0.08
6. Southwestern Mountain	-0.87	-0.88	33	0.01

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