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

October 2003 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
October 2003 1-Month	3.11	0.14	2.97	115th Driest	Driest since: 2001	2024
October 2003 1-Month	3.11	0.14	2.97	16th Wettest	Wettest since: 2002	2005
Sep–Oct 2003 2-Month	3.94	0.10	3.84	129th Driest	Driest since: 2002	2024
Sep–Oct 2003 2-Month	3.94	0.10	3.84	2nd Wettest	Wettest to Date	2011
Aug–Oct 2003 3-Month	3.14	0.09	3.05	126th Driest	Driest since: 2002	1930
Aug–Oct 2003 3-Month	3.14	0.09	3.05	5th Wettest	Wettest since: 1955	2011
Jul–Oct 2003 4-Month	2.52	0.05	2.47	126th Driest	Driest since: 2002	1964
Jul–Oct 2003 4-Month	2.52	0.05	2.47	5th Wettest	Wettest since: 1933	2011
Jun–Oct 2003 5-Month	3.21	0.07	3.14	130th Driest	Driest since: 2002	1930, 2024
Jun–Oct 2003 5-Month	3.21	0.07	3.14	1st Wettest	Wettest to Date	2003
May–Oct 2003 6-Month	2.60	0.00	2.60	129th Driest	Driest since: 2002	1964
May–Oct 2003 6-Month	2.60	0.00	2.60	2nd Wettest	Wettest to Date	2011
Apr–Oct 2003 7-Month	2.05	0.01	2.04	128th Driest	Driest since: 2002	1963
Apr–Oct 2003 7-Month	2.05	0.01	2.04	3rd Wettest	Wettest to Date	2011
Mar–Oct 2003 8-Month	1.83	0.03	1.80	128th Driest	Driest since: 2002	1963
Mar–Oct 2003 8-Month	1.83	0.03	1.80	3rd Wettest	Wettest to Date	2011
Feb–Oct 2003 9-Month	1.82	0.04	1.78	128th Driest	Driest since: 2002	1941
Feb–Oct 2003 9-Month	1.82	0.04	1.78	3rd Wettest	Wettest to Date	2011
Jan–Oct 2003 10-Month	1.54	0.06	1.48	127th Driest	Driest since: 2002	1963
Jan–Oct 2003 10-Month	1.54	0.06	1.48	4th Wettest	Wettest since: 1975	2011
Dec 2002–Oct 2003 11-Month	1.54	0.06	1.48	126th Driest	Driest since: 2002	1963
Dec 2002–Oct 2003 11-Month	1.54	0.06	1.48	4th Wettest	Wettest since: 1903	2011
Nov 2002–Oct 2003 12-Month	1.45	0.03	1.42	127th Driest	Driest since: 2002	1930
Nov 2002–Oct 2003 12-Month	1.45	0.03	1.42	3rd Wettest	Wettest to Date	2011
May 2002–Oct 2003 18-Month	0.91	0.02	0.89	121st Driest	Driest since: 2002	1965
May 2002–Oct 2003 18-Month	0.91	0.02	0.89	9th Wettest	Wettest since: 1976	2019
Nov 2001–Oct 2003 24-Month	0.38	0.03	0.35	98th Driest	Driest since: 2002	1966
	0.38	0.03	0.35	31st Wettest	Wettest since: 1997	2019
	Ties: 1951
Nov 2000–Oct 2003 36-Month	0.12	0.03	0.09	73rd Driest	Driest since: 2002	1965, 1966
	0.12	0.03	0.09	55th Wettest	Wettest since: 1998	2019
	Ties: 1912
Nov 1999–Oct 2003 48-Month	0.08	0.03	0.05	61st Driest	Driest since: 2002	1966
Nov 1999–Oct 2003 48-Month	0.08	0.03	0.05	66th Wettest	Wettest since: 1999	2021
Nov 1998–Oct 2003 60-Month	-0.06	0.03	-0.09	40th Driest	Driest since: 2002	1966
	-0.06	0.03	-0.09	86th Wettest	Wettest since: 2000	1976
	Ties: 1959

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 2

October 2003 Palmer Z-Index Rankings

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