Value Anomaly Rank Mean

Divisional Palmer Z-Index

November 1904 - January 1905

-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

November 1904 - January 1905 Pennsylvania Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Pocono Mountains	0.19	0.23	80	-0.04
2. East Central Mountains	0.15	0.15	74	0.00
3. Southeastern Piedmont	0.24	0.26	78	-0.03
4. Lower Susquehanna	0.10	0.09	65	0.01
5. Middle Susquehanna	-0.37	-0.40	53	0.03
6. Upper Susquehanna	-0.45	-0.44	46	-0.02
7. Central Mountains	-1.35	-1.38	12	0.02
8. South Central Mountains	-1.50	-1.51	14	0.02
9. Southwest Plateau	-1.82	-1.89	6	0.07
10. Northwest Plateau	-0.95	-1.00	19	0.05

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published August 2025, retrieved on August 11, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping