ValueRankAnomalyMean

Divisional Palmer Z-Index

July - September 1897

-4-3-2-11234

Pennsylvania (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Rank:

Anomaly:

Mean:

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July - September 1897 Pennsylvania Divisional Palmer Z-Index

Climate Division	Value	Rank 130 Years	Anomaly	1901-2000 Mean
1. Pocono Mountains	0.27	77	0.28	-0.01
2. East Central Mountains	-0.10	59	-0.12	0.03
3. Southeastern Piedmont	0.17	71	0.11	0.06
4. Lower Susquehanna	0.12	66	-0.07	0.20
5. Middle Susquehanna	0.21	67	0.11	0.10
6. Upper Susquehanna	0.00	63	-0.10	0.10
7. Central Mountains	0.21	77	0.19	0.01
8. South Central Mountains	-0.14	56	-0.16	0.02
9. Southwest Plateau	0.11	66	0.12	-0.01
10. Northwest Plateau	0.94	96	0.94	0.00

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published July 2025, retrieved on July 16, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping