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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 6

December 1976 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1976 1-Month	-1.30	-0.08	-1.22	25th Driest	Driest since: 1965	1930
December 1976 1-Month	-1.30	-0.08	-1.22	106th Wettest	Wettest since: 1975	1901
Nov–Dec 1976 2-Month	-1.48	-0.15	-1.33	20th Driest	Driest since: 1965	1930
Nov–Dec 1976 2-Month	-1.48	-0.15	-1.33	111th Wettest	Wettest since: 1975	1972
Oct–Dec 1976 3-Month	1.01	-0.09	1.10	102nd Driest	Driest since: 1975	1930
Oct–Dec 1976 3-Month	1.01	-0.09	1.10	29th Wettest	Wettest since: 1973	1996
Sep–Dec 1976 4-Month	0.92	-0.04	0.96	99th Driest	Driest since: 1974	1964
Sep–Dec 1976 4-Month	0.92	-0.04	0.96	32nd Wettest	Wettest since: 1975	2011
Aug–Dec 1976 5-Month	0.92	-0.01	0.93	98th Driest	Driest since: 1974	1964
Aug–Dec 1976 5-Month	0.92	-0.01	0.93	33rd Wettest	Wettest since: 1975	2018
Jul–Dec 1976 6-Month	1.00	0.01	0.99	101st Driest	Driest since: 1974	1964
Jul–Dec 1976 6-Month	1.00	0.01	0.99	30th Wettest	Wettest since: 1975	2018
Jun–Dec 1976 7-Month	1.10	0.03	1.07	110th Driest	Driest since: 1974	1964
Jun–Dec 1976 7-Month	1.10	0.03	1.07	21st Wettest	Wettest since: 1975	2018
May–Dec 1976 8-Month	0.97	0.01	0.96	104th Driest	Driest since: 1974	1964
	0.97	0.01	0.96	27th Wettest	Wettest since: 1975	2018
	Ties: 1933
Apr–Dec 1976 9-Month	0.66	0.03	0.63	99th Driest	Driest since: 1974	1964
Apr–Dec 1976 9-Month	0.66	0.03	0.63	32nd Wettest	Wettest since: 1975	2018
Mar–Dec 1976 10-Month	0.53	0.02	0.51	93rd Driest	Driest since: 1974	1964
Mar–Dec 1976 10-Month	0.53	0.02	0.51	38th Wettest	Wettest since: 1975	2011
Feb–Dec 1976 11-Month	0.49	0.01	0.48	93rd Driest	Driest since: 1974	1964
Feb–Dec 1976 11-Month	0.49	0.01	0.48	38th Wettest	Wettest since: 1975	2011
Jan–Dec 1976 12-Month	0.61	0.03	0.58	104th Driest	Driest since: 1974	1991
	0.61	0.03	0.58	27th Wettest	Wettest since: 1975	2011, 2018
	Ties: 1918, 1927, 1956
Jul 1975–Dec 1976 18-Month	1.03	0.02	1.01	121st Driest	Driest since: 1975	1965
Jul 1975–Dec 1976 18-Month	1.03	0.02	1.01	9th Wettest	Wettest since: 1903	2019
Jan 1975–Dec 1976 24-Month	0.87	0.03	0.84	120th Driest	Driest since: 1975	1964
Jan 1975–Dec 1976 24-Month	0.87	0.03	0.84	10th Wettest	Wettest since: 1973	2019
Jan 1974–Dec 1976 36-Month	0.72	0.03	0.69	114th Driest	Driest since: 1975	1965
Jan 1974–Dec 1976 36-Month	0.72	0.03	0.69	15th Wettest	Wettest since: 1974	2019
Jan 1973–Dec 1976 48-Month	0.69	0.03	0.66	113th Driest	Driest since: 1974	1966
Jan 1973–Dec 1976 48-Month	0.69	0.03	0.66	15th Wettest	Wettest since: 1975	2006
Jan 1972–Dec 1976 60-Month	0.84	0.03	0.81	122nd Driest	Driest since: 1975	1966
Jan 1972–Dec 1976 60-Month	0.84	0.03	0.81	5th Wettest	Wettest to Date	2021

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 31, 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 6

December 1976 Palmer Z-Index Rankings

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