ValueAnomalyRankMean

Divisional Palmer Z-Index Rank (130 years)

October - December 1897

Driest⇣⅒⇣ ⅓Near Normal⇡ ⅓⇡⅒Wettest

Pennsylvania (Hover over a Climate Division)

Z-IndexPalmer Z-Index:

Anomaly:

Rank:

Mean:

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October - December 1897 Pennsylvania Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Pocono Mountains	0.45	0.50	83	-0.05
2. East Central Mountains	0.84	0.86	98	-0.02
3. Southeastern Piedmont	0.63	0.66	85	-0.03
4. Lower Susquehanna	0.26	0.33	77	-0.07
5. Middle Susquehanna	0.29	0.36	69	-0.08
6. Upper Susquehanna	-0.39	-0.30	45	-0.09
7. Central Mountains	-0.45	-0.35	43	-0.10
8. South Central Mountains	-0.19	-0.09	62	-0.10
9. Southwest Plateau	0.22	0.24	68	-0.03
10. Northwest Plateau	-0.29	-0.25	49	-0.04

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published March 2025, retrieved on March 25, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping