ValueAnomalyRankMean

Divisional Palmer Z-Index Anomaly

September - November 1931

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Pennsylvania (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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September - November 1931 Pennsylvania Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Pocono Mountains	-2.70	-2.66	2	-0.04
2. East Central Mountains	-2.42	-2.39	7	-0.03
3. Southeastern Piedmont	-1.98	-1.94	12	-0.04
4. Lower Susquehanna	-2.50	-2.48	4	-0.02
5. Middle Susquehanna	-3.15	-3.12	2	-0.03
6. Upper Susquehanna	-2.67	-2.64	3	-0.03
7. Central Mountains	-1.96	-1.92	11	-0.04
8. South Central Mountains	-1.86	-1.81	12	-0.04
9. Southwest Plateau	-0.76	-0.73	41	-0.03
10. Northwest Plateau	-1.89	-1.88	13	-0.01

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published March 2025, retrieved on March 29, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping