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

Divisional Rankings

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Pennsylvania, Climate Division 2

December 1956 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1956 1-Month	1.17	0.09	1.08	94th Driest	Driest since: 1955	1955
December 1956 1-Month	1.17	0.09	1.08	37th Wettest	Wettest since: 1953	1996
Nov–Dec 1956 2-Month	0.20	-0.09	0.29	82nd Driest	Driest since: 1955	1931
Nov–Dec 1956 2-Month	0.20	-0.09	0.29	49th Wettest	Wettest since: 1954	1972
Oct–Dec 1956 3-Month	0.23	-0.02	0.25	66th Driest	Driest since: 1954	1930
Oct–Dec 1956 3-Month	0.23	-0.02	0.25	65th Wettest	Wettest since: 1955	1996
Sep–Dec 1956 4-Month	0.44	0.00	0.44	84th Driest	Driest since: 1955	2024
Sep–Dec 1956 4-Month	0.44	0.00	0.44	47th Wettest	Wettest since: 1952	2018
Aug–Dec 1956 5-Month	0.41	0.02	0.39	77th Driest	Driest since: 1954	1930
	0.41	0.02	0.39	54th Wettest	Wettest since: 1955	2011
	Ties: 1937
Jul–Dec 1956 6-Month	0.73	0.01	0.72	98th Driest	Driest since: 1954	1930
Jul–Dec 1956 6-Month	0.73	0.01	0.72	33rd Wettest	Wettest since: 1955	2018
Jun–Dec 1956 7-Month	0.73	0.02	0.71	104th Driest	Driest since: 1954	1930
Jun–Dec 1956 7-Month	0.73	0.02	0.71	27th Wettest	Wettest since: 1955	2018
May–Dec 1956 8-Month	0.57	-0.02	0.59	98th Driest	Driest since: 1955	1964
	0.57	-0.02	0.59	33rd Wettest	Wettest since: 1952	2018
	Ties: 1919
Apr–Dec 1956 9-Month	0.53	-0.01	0.54	99th Driest	Driest since: 1955	1930
Apr–Dec 1956 9-Month	0.53	-0.01	0.54	32nd Wettest	Wettest since: 1952	2018
Mar–Dec 1956 10-Month	0.53	0.00	0.53	98th Driest	Driest since: 1955	1930
Mar–Dec 1956 10-Month	0.53	0.00	0.53	33rd Wettest	Wettest since: 1952	2011
Feb–Dec 1956 11-Month	0.68	0.02	0.66	111th Driest	Driest since: 1955	1930
	0.68	0.02	0.66	20th Wettest	Wettest since: 1952	2018
	Ties: 1938
Jan–Dec 1956 12-Month	0.46	0.03	0.43	100th Driest	Driest since: 1955	1930
Jan–Dec 1956 12-Month	0.46	0.03	0.43	31st Wettest	Wettest since: 1952	2018
Jul 1955–Dec 1956 18-Month	0.61	0.02	0.59	107th Driest	Driest since: 1955	1965
Jul 1955–Dec 1956 18-Month	0.61	0.02	0.59	23rd Wettest	Wettest since: 1953	2019
Jan 1955–Dec 1956 24-Month	0.20	0.03	0.17	81st Driest	Driest since: 1955	1931
Jan 1955–Dec 1956 24-Month	0.20	0.03	0.17	49th Wettest	Wettest since: 1953	2019
Jan 1954–Dec 1956 36-Month	-0.06	0.03	-0.09	47th Driest	Driest since: 1955	1965
Jan 1954–Dec 1956 36-Month	-0.06	0.03	-0.09	82nd Wettest	Wettest since: 1954	2020
Jan 1953–Dec 1956 48-Month	0.00	0.03	-0.03	56th Driest	Driest since: 1949	1966
Jan 1953–Dec 1956 48-Month	0.00	0.03	-0.03	72nd Wettest	Wettest since: 1955	2021
Jan 1952–Dec 1956 60-Month	0.26	0.03	0.23	92nd Driest	Driest since: 1951	1966
	0.26	0.03	0.23	35th Wettest	Wettest since: 1955	1976, 1979, 2021
	Ties: 1951

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 1956 Palmer Z-Index Rankings

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