Climate at a Glance | Divisional Rankings | National Centers for Environmental Information (NCEI)

Divisional Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska or Hawaii. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Pennsylvania, Climate Division 2

December 1994 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1994 1-Month	-0.93	0.09	-1.02	40th Driest	Driest since: 1989	1955
December 1994 1-Month	-0.93	0.09	-1.02	91st Wettest	Wettest since: 1993	1996
Nov–Dec 1994 2-Month	0.03	-0.09	0.12	72nd Driest	Driest since: 1991	1931
	0.03	-0.09	0.12	59th Wettest	Wettest since: 1993	1972
	Ties: 1963
Oct–Dec 1994 3-Month	-0.63	-0.02	-0.61	37th Driest	Driest since: 1991	1930
	-0.63	-0.02	-0.61	94th Wettest	Wettest since: 1993	1996
	Ties: 1947
Sep–Dec 1994 4-Month	-0.45	0.00	-0.45	37th Driest	Driest since: 1991	2024
Sep–Dec 1994 4-Month	-0.45	0.00	-0.45	94th Wettest	Wettest since: 1993	2018
Aug–Dec 1994 5-Month	0.13	0.02	0.11	64th Driest	Driest since: 1991	1930
Aug–Dec 1994 5-Month	0.13	0.02	0.11	67th Wettest	Wettest since: 1993	2011
Jul–Dec 1994 6-Month	0.09	0.01	0.08	64th Driest	Driest since: 1991	1930
Jul–Dec 1994 6-Month	0.09	0.01	0.08	67th Wettest	Wettest since: 1993	2018
Jun–Dec 1994 7-Month	0.26	0.02	0.24	72nd Driest	Driest since: 1991	1930
	0.26	0.02	0.24	59th Wettest	Wettest since: 1993	2018
	Ties: 1960, 1983
May–Dec 1994 8-Month	0.13	-0.02	0.15	68th Driest	Driest since: 1993	1964
May–Dec 1994 8-Month	0.13	-0.02	0.15	63rd Wettest	Wettest since: 1992	2018
Apr–Dec 1994 9-Month	0.05	-0.01	0.06	65th Driest	Driest since: 1991	1930
Apr–Dec 1994 9-Month	0.05	-0.01	0.06	66th Wettest	Wettest since: 1993	2018
Mar–Dec 1994 10-Month	0.35	0.00	0.35	89th Driest	Driest since: 1991	1930
Mar–Dec 1994 10-Month	0.35	0.00	0.35	42nd Wettest	Wettest since: 1993	2011
Feb–Dec 1994 11-Month	0.35	0.02	0.33	90th Driest	Driest since: 1992	1930
	0.35	0.02	0.33	41st Wettest	Wettest since: 1993	2018
	Ties: 1915
Jan–Dec 1994 12-Month	0.57	0.03	0.54	108th Driest	Driest since: 1993	1930
	0.57	0.03	0.54	23rd Wettest	Wettest since: 1983	2018
	Ties: 1906, 1915
Jul 1993–Dec 1994 18-Month	0.56	0.02	0.54	103rd Driest	Driest since: 1993	1965
	0.56	0.02	0.54	27th Wettest	Wettest since: 1979	2019
	Ties: 1938
Jan 1993–Dec 1994 24-Month	0.54	0.03	0.51	108th Driest	Driest since: 1993	1931
Jan 1993–Dec 1994 24-Month	0.54	0.03	0.51	22nd Wettest	Wettest since: 1984	2019
Jan 1992–Dec 1994 36-Month	0.38	0.03	0.35	101st Driest	Driest since: 1993	1965
Jan 1992–Dec 1994 36-Month	0.38	0.03	0.35	28th Wettest	Wettest since: 1984	2020
Jan 1991–Dec 1994 48-Month	-0.01	0.03	-0.04	53rd Driest	Driest since: 1993	1966
	-0.01	0.03	-0.04	75th Wettest	Wettest since: 1986	2021
	Ties: 1918, 1926
Jan 1990–Dec 1994 60-Month	0.08	0.03	0.05	69th Driest	Driest since: 1993	1966
	0.08	0.03	0.05	58th Wettest	Wettest since: 1987	1976, 1979, 2021
	Ties: 1910, 1920, 1946, 1985

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 28, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings

Climate at a Glance Divisional Rankings

Divisional Rankings

Pennsylvania, Climate Division 2

December 1994 Palmer Z-Index Rankings

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