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 1992 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1992 1-Month	-0.04	0.09	-0.13	68th Driest	Driest since: 1991	1955
December 1992 1-Month	-0.04	0.09	-0.13	63rd Wettest	Wettest since: 1990	1996
Nov–Dec 1992 2-Month	0.98	-0.09	1.07	102nd Driest	Driest since: 1991	1931
Nov–Dec 1992 2-Month	0.98	-0.09	1.07	29th Wettest	Wettest since: 1990	1972
Oct–Dec 1992 3-Month	0.57	-0.02	0.59	86th Driest	Driest since: 1991	1930
	0.57	-0.02	0.59	45th Wettest	Wettest since: 1990	1996
	Ties: 1945
Sep–Dec 1992 4-Month	0.61	0.00	0.61	92nd Driest	Driest since: 1991	2024
Sep–Dec 1992 4-Month	0.61	0.00	0.61	39th Wettest	Wettest since: 1990	2018
Aug–Dec 1992 5-Month	0.45	0.02	0.43	81st Driest	Driest since: 1991	1930
Aug–Dec 1992 5-Month	0.45	0.02	0.43	50th Wettest	Wettest since: 1990	2011
Jul–Dec 1992 6-Month	0.62	0.01	0.61	93rd Driest	Driest since: 1991	1930
	0.62	0.01	0.61	38th Wettest	Wettest since: 1990	2018
	Ties: 1934
Jun–Dec 1992 7-Month	0.48	0.02	0.46	92nd Driest	Driest since: 1991	1930
Jun–Dec 1992 7-Month	0.48	0.02	0.46	39th Wettest	Wettest since: 1990	2018
May–Dec 1992 8-Month	0.50	-0.02	0.52	93rd Driest	Driest since: 1991	1964
	0.50	-0.02	0.52	38th Wettest	Wettest since: 1990	2018
	Ties: 1950
Apr–Dec 1992 9-Month	0.27	-0.01	0.28	82nd Driest	Driest since: 1991	1930
	0.27	-0.01	0.28	49th Wettest	Wettest since: 1990	2018
	Ties: 1937
Mar–Dec 1992 10-Month	0.36	0.00	0.36	90th Driest	Driest since: 1991	1930
Mar–Dec 1992 10-Month	0.36	0.00	0.36	41st Wettest	Wettest since: 1990	2011
Feb–Dec 1992 11-Month	0.21	0.02	0.19	80th Driest	Driest since: 1991	1930
	0.21	0.02	0.19	51st Wettest	Wettest since: 1990	2018
	Ties: 1974
Jan–Dec 1992 12-Month	0.07	0.03	0.04	63rd Driest	Driest since: 1991	1930
	0.07	0.03	0.04	68th Wettest	Wettest since: 1990	2018
	Ties: 1925, 1989
Jul 1991–Dec 1992 18-Month	-0.29	0.02	-0.31	33rd Driest	Driest since: 1991	1965
Jul 1991–Dec 1992 18-Month	-0.29	0.02	-0.31	97th Wettest	Wettest since: 1990	2019
Jan 1991–Dec 1992 24-Month	-0.56	0.03	-0.59	11th Driest	Driest since: 1981	1931
Jan 1991–Dec 1992 24-Month	-0.56	0.03	-0.59	119th Wettest	Wettest since: 1991	2019
Jan 1990–Dec 1992 36-Month	-0.23	0.03	-0.26	24th Driest	Driest since: 1991	1965
	-0.23	0.03	-0.26	105th Wettest	Wettest since: 1991	2020
	Ties: 1991
Jan 1989–Dec 1992 48-Month	-0.16	0.03	-0.19	30th Driest	Driest since: 1991	1966
Jan 1989–Dec 1992 48-Month	-0.16	0.03	-0.19	98th Wettest	Wettest since: 1990	2021
Jan 1988–Dec 1992 60-Month	-0.21	0.03	-0.24	20th Driest	Driest since: 1991	1966
	-0.21	0.03	-0.24	107th Wettest	Wettest since: 1990	1976, 1979, 2021
	Ties: 1989

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 22, 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 1992 Palmer Z-Index Rankings

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