Value Anomaly Rank Mean

Divisional Palmer Z-Index

November 1988 - January 1989

-4-3-2-11234

Pennsylvania (Hover over a Climate Division)

Z-Index Palmer Z-Index : --

Anomaly: --

Rank: -- Driest

Mean: --

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*Signifies a tie

**Insufficient variability in the data record renders rank insignificant

November 1988 - January 1989 Pennsylvania Divisional Palmer Z-Index

Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. Pocono Mountains	-1.09	-1.05	21	-0.04
2. East Central Mountains	-1.02	-1.02	22	0.00
3. Southeastern Piedmont	-0.68	-0.65	36	-0.03
4. Lower Susquehanna	-1.15	-1.16	25	0.01
5. Middle Susquehanna	-1.05	-1.08	24	0.03
6. Upper Susquehanna	-1.68	-1.67	6	-0.02
7. Central Mountains	-1.11	-1.13	21	0.02
8. South Central Mountains	-0.60	-0.62	38	0.02
9. Southwest Plateau	-0.48	-0.55	39	0.07
10. Northwest Plateau	-0.53	-0.58	31	0.05

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published July 2025, retrieved on August 3, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping