ValueRankAnomalyMean

Divisional Palmer Z-Index

August - October 1914

-4-3-2-11234

Pennsylvania (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -1.67

Rank: 14th Driest

Anomaly: -1.74

Mean: 0.07

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August - October 1914 Pennsylvania Divisional Palmer Z-Index

Climate Division	Value	Rank 130 Years	Anomaly	1901-2000 Mean
1. Pocono Mountains	-1.34	20	-1.39	0.04
2. East Central Mountains	-1.78	10	-1.87	0.09
3. Southeastern Piedmont	-2.21	5	-2.31	0.10
4. Lower Susquehanna	-1.40	19	-1.51	0.11
5. Middle Susquehanna	-1.24	21	-1.34	0.10
6. Upper Susquehanna	-0.26	46	-0.34	0.08
7. Central Mountains	-2.25	4	-2.29	0.04
8. South Central Mountains	-2.22	9	-2.23	0.01
9. Southwest Plateau	-1.34	22	-1.36	0.02
10. Northwest Plateau	-1.00	30	-1.04	0.04

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