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 5

November 1973 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
November 1973 1-Month	-1.51	-0.27	-1.24	39th Driest	Driest since: 1965	1930
November 1973 1-Month	-1.51	-0.27	-1.24	92nd Wettest	Wettest since: 1972	2018
Oct–Nov 1973 2-Month	-0.78	-0.12	-0.66	44th Driest	Driest since: 1965	1930
Oct–Nov 1973 2-Month	-0.78	-0.12	-0.66	87th Wettest	Wettest since: 1972	1995
Sep–Nov 1973 3-Month	0.34	-0.03	0.37	74th Driest	Driest since: 1972	1930
Sep–Nov 1973 3-Month	0.34	-0.03	0.37	57th Wettest	Wettest since: 1970	2011
Aug–Nov 1973 4-Month	0.01	0.01	0.00	67th Driest	Driest since: 1972	1930
Aug–Nov 1973 4-Month	0.01	0.01	0.00	64th Wettest	Wettest since: 1970	2011
Jul–Nov 1973 5-Month	-0.23	0.01	-0.24	52nd Driest	Driest since: 1968	1930
Jul–Nov 1973 5-Month	-0.23	0.01	-0.24	79th Wettest	Wettest since: 1972	2018
Jun–Nov 1973 6-Month	-0.07	0.04	-0.11	57th Driest	Driest since: 1971	1930
Jun–Nov 1973 6-Month	-0.07	0.04	-0.11	74th Wettest	Wettest since: 1972	2018
May–Nov 1973 7-Month	0.10	0.00	0.10	66th Driest	Driest since: 1971	1930
May–Nov 1973 7-Month	0.10	0.00	0.10	65th Wettest	Wettest since: 1972	2018
Apr–Nov 1973 8-Month	0.39	0.03	0.36	82nd Driest	Driest since: 1971	1930
	0.39	0.03	0.36	49th Wettest	Wettest since: 1972	2018
	Ties: 1918, 1943
Mar–Nov 1973 9-Month	0.13	0.03	0.10	66th Driest	Driest since: 1971	1930
Mar–Nov 1973 9-Month	0.13	0.03	0.10	65th Wettest	Wettest since: 1972	2011
Feb–Nov 1973 10-Month	0.10	0.03	0.07	67th Driest	Driest since: 1971	1930
Feb–Nov 1973 10-Month	0.10	0.03	0.07	64th Wettest	Wettest since: 1972	2011
Jan–Nov 1973 11-Month	0.10	0.06	0.04	66th Driest	Driest since: 1971	1930
Jan–Nov 1973 11-Month	0.10	0.06	0.04	65th Wettest	Wettest since: 1972	2011
Dec 1972–Nov 1973 12-Month	0.34	0.06	0.28	87th Driest	Driest since: 1971	1930
	0.34	0.06	0.28	43rd Wettest	Wettest since: 1972	2011
	Ties: 1916, 1943
Jun 1972–Nov 1973 18-Month	0.95	0.05	0.90	124th Driest	Driest since: 1972	1931
Jun 1972–Nov 1973 18-Month	0.95	0.05	0.90	6th Wettest	Wettest since: 1903	2019
Dec 1971–Nov 1973 24-Month	0.90	0.05	0.85	121st Driest	Driest since: 1972	1931
Dec 1971–Nov 1973 24-Month	0.90	0.05	0.85	8th Wettest	Wettest since: 1903	2019
Dec 1970–Nov 1973 36-Month	0.52	0.05	0.47	105th Driest	Driest since: 1971	1932
Dec 1970–Nov 1973 36-Month	0.52	0.05	0.47	23rd Wettest	Wettest since: 1972	2019
Dec 1969–Nov 1973 48-Month	0.49	0.05	0.44	108th Driest	Driest since: 1972	1966
Dec 1969–Nov 1973 48-Month	0.49	0.05	0.44	19th Wettest	Wettest since: 1905	2006
Dec 1968–Nov 1973 60-Month	0.27	0.05	0.22	85th Driest	Driest since: 1972	1966
	0.27	0.05	0.22	41st Wettest	Wettest since: 1947	1976
	Ties: 1937

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 30, 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 5

November 1973 Palmer Z-Index Rankings

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