ValueRankAnomalyMean

Divisional Palmer Z-Index

September - November 1899

-4-3-2-11234

Pennsylvania (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Rank:

Anomaly:

Mean:

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September - November 1899 Pennsylvania Divisional Palmer Z-Index

Climate Division	Value	Rank 130 Years	Anomaly	1901-2000 Mean
1. Pocono Mountains	-0.26	53	-0.22	-0.04
2. East Central Mountains	0.09	67	0.11	-0.03
3. Southeastern Piedmont	0.16	68	0.20	-0.04
4. Lower Susquehanna	0.17	72	0.19	-0.02
5. Middle Susquehanna	-0.32	50	-0.29	-0.03
6. Upper Susquehanna	-0.66	40	-0.63	-0.03
7. Central Mountains	-1.00	31	-0.96	-0.04
8. South Central Mountains	-0.92	38	-0.87	-0.04
9. Southwest Plateau	-0.88	36	-0.85	-0.03
10. Northwest Plateau	-1.19	25	-1.18	-0.01

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published July 2025, retrieved on July 12, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping