Value Anomaly Rank Mean

Divisional Palmer Z-Index

October - December 1912

-4-3-2-11234

Pennsylvania (Hover over a Climate Division)

Z-Index Palmer Z-Index : --

Anomaly: --

Rank: -- Driest

Mean: --

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**Insufficient variability in the data record renders rank insignificant

October - December 1912 Pennsylvania Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Pocono Mountains	-0.05	-0.01	61	-0.05
2. East Central Mountains	0.37	0.38	72	-0.02
3. Southeastern Piedmont	0.45	0.48	73	-0.03
4. Lower Susquehanna	-0.31	-0.24	54	-0.07
5. Middle Susquehanna	0.05	0.13	61	-0.08
6. Upper Susquehanna	-0.32	-0.23	46	-0.09
7. Central Mountains	-0.24	-0.14	50	-0.10
8. South Central Mountains	-0.43	-0.33	48	-0.10
9. Southwest Plateau	-0.46	-0.44	42	-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 July 2025, retrieved on July 29, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping