ValueRankAnomalyMean

Divisional Palmer Z-Index

November 1958 - January 1959

-4-3-2-11234

Pennsylvania (Hover over a Climate Division)

Z-IndexPalmer Z-Index: -0.50

Rank: 42nd Driest

Anomaly: -0.51

Mean: 0.01

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November 1958 - January 1959 Pennsylvania Divisional Palmer Z-Index

Climate Division	Value	Rank 130 Years	Anomaly	1901-2000 Mean
1. Pocono Mountains	-0.81	33	-0.77	-0.04
2. East Central Mountains	-1.01	23	-1.01	0.00
3. Southeastern Piedmont	-0.91	30	-0.89	-0.03
4. Lower Susquehanna	-0.88	30	-0.89	0.01
5. Middle Susquehanna	-0.58	42	-0.61	0.03
6. Upper Susquehanna	-0.57	44	-0.56	-0.02
7. Central Mountains	-0.15	58	-0.17	0.02
8. South Central Mountains	-0.41	49	-0.42	0.02
9. Southwest Plateau	-0.19	49	-0.26	0.07
10. Northwest Plateau	0.37	80	0.32	0.05

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published June 2025, retrieved on June 30, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping