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 1

October 1996 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
October 1996 1-Month	2.71	0.09	2.62	112th Driest	Driest since: 1994	1963
October 1996 1-Month	2.71	0.09	2.62	19th Wettest	Wettest since: 1995	2005
Sep–Oct 1996 2-Month	1.93	0.07	1.86	111th Driest	Driest since: 1995	1964
Sep–Oct 1996 2-Month	1.93	0.07	1.86	20th Wettest	Wettest since: 1987	2011
Aug–Oct 1996 3-Month	0.75	0.04	0.71	91st Driest	Driest since: 1995	1964
Aug–Oct 1996 3-Month	0.75	0.04	0.71	40th Wettest	Wettest since: 1994	2011
Jul–Oct 1996 4-Month	1.45	0.01	1.44	114th Driest	Driest since: 1995	1964
Jul–Oct 1996 4-Month	1.45	0.01	1.44	17th Wettest	Wettest since: 1987	2011
Jun–Oct 1996 5-Month	1.39	0.03	1.36	112th Driest	Driest since: 1995	1964
Jun–Oct 1996 5-Month	1.39	0.03	1.36	19th Wettest	Wettest since: 1976	2011
May–Oct 1996 6-Month	1.16	-0.02	1.18	112th Driest	Driest since: 1995	1964
	1.16	-0.02	1.18	19th Wettest	Wettest since: 1990	2011
	Ties: 1990
Apr–Oct 1996 7-Month	1.33	-0.02	1.35	121st Driest	Driest since: 1995	1964
Apr–Oct 1996 7-Month	1.33	-0.02	1.35	10th Wettest	Wettest since: 1945	2011
Mar–Oct 1996 8-Month	1.15	-0.01	1.16	124th Driest	Driest since: 1995	1964
Mar–Oct 1996 8-Month	1.15	-0.01	1.16	7th Wettest	Wettest since: 1945	2011
Feb–Oct 1996 9-Month	0.91	0.00	0.91	117th Driest	Driest since: 1995	1964
Feb–Oct 1996 9-Month	0.91	0.00	0.91	14th Wettest	Wettest since: 1975	2011
Jan–Oct 1996 10-Month	1.37	0.01	1.36	127th Driest	Driest since: 1995	1991
Jan–Oct 1996 10-Month	1.37	0.01	1.36	4th Wettest	Wettest to Date	2011
Dec 1995–Oct 1996 11-Month	1.10	0.01	1.09	122nd Driest	Driest since: 1995	1964, 1980
Dec 1995–Oct 1996 11-Month	1.10	0.01	1.09	8th Wettest	Wettest since: 1975	2011
Nov 1995–Oct 1996 12-Month	1.16	-0.01	1.17	123rd Driest	Driest since: 1995	1965
Nov 1995–Oct 1996 12-Month	1.16	-0.01	1.17	7th Wettest	Wettest since: 1952	2011
May 1995–Oct 1996 18-Month	0.43	-0.02	0.45	98th Driest	Driest since: 1995	1965
May 1995–Oct 1996 18-Month	0.43	-0.02	0.45	32nd Wettest	Wettest since: 1990	2019
Nov 1994–Oct 1996 24-Month	0.16	-0.02	0.18	79th Driest	Driest since: 1995	1965
	0.16	-0.02	0.18	50th Wettest	Wettest since: 1994	2019
	Ties: 1933
Nov 1993–Oct 1996 36-Month	0.40	-0.01	0.41	102nd Driest	Driest since: 1995	1965
	0.40	-0.01	0.41	26th Wettest	Wettest since: 1977	1975
	Ties: 1960
Nov 1992–Oct 1996 48-Month	0.31	-0.01	0.32	95th Driest	Driest since: 1995	1966
Nov 1992–Oct 1996 48-Month	0.31	-0.01	0.32	32nd Wettest	Wettest since: 1987	1976
Nov 1991–Oct 1996 60-Month	0.22	-0.01	0.23	84th Driest	Driest since: 1995	1966
Nov 1991–Oct 1996 60-Month	0.22	-0.01	0.23	42nd Wettest	Wettest since: 1987	1976

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on April 1, 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 1

October 1996 Palmer Z-Index Rankings

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