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

December 2003 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 2003 1-Month	2.21	0.09	2.12	114th Driest	Driest since: 2002	1955
December 2003 1-Month	2.21	0.09	2.12	17th Wettest	Wettest since: 1996	1996
Nov–Dec 2003 2-Month	1.11	-0.09	1.20	108th Driest	Driest since: 2002	1931
Nov–Dec 2003 2-Month	1.11	-0.09	1.20	23rd Wettest	Wettest since: 1996	1972
Oct–Dec 2003 3-Month	1.77	-0.02	1.79	119th Driest	Driest since: 2001	1930
Oct–Dec 2003 3-Month	1.77	-0.02	1.79	12th Wettest	Wettest since: 2002	1996
Sep–Dec 2003 4-Month	2.52	0.00	2.52	126th Driest	Driest since: 2002	2024
Sep–Dec 2003 4-Month	2.52	0.00	2.52	5th Wettest	Wettest since: 1996	2018
Aug–Dec 2003 5-Month	2.33	0.02	2.31	128th Driest	Driest since: 2002	1930
Aug–Dec 2003 5-Month	2.33	0.02	2.31	3rd Wettest	Wettest to Date	2011
Jul–Dec 2003 6-Month	2.05	0.01	2.04	128th Driest	Driest since: 2002	1930
Jul–Dec 2003 6-Month	2.05	0.01	2.04	3rd Wettest	Wettest to Date	2018
Jun–Dec 2003 7-Month	2.61	0.02	2.59	129th Driest	Driest since: 2002	1930
Jun–Dec 2003 7-Month	2.61	0.02	2.59	2nd Wettest	Wettest to Date	2018
May–Dec 2003 8-Month	2.22	-0.02	2.24	129th Driest	Driest since: 2002	1964
May–Dec 2003 8-Month	2.22	-0.02	2.24	2nd Wettest	Wettest to Date	2018
Apr–Dec 2003 9-Month	1.84	-0.01	1.85	128th Driest	Driest since: 2002	1930
Apr–Dec 2003 9-Month	1.84	-0.01	1.85	3rd Wettest	Wettest to Date	2018
Mar–Dec 2003 10-Month	1.69	0.00	1.69	128th Driest	Driest since: 2002	1930
Mar–Dec 2003 10-Month	1.69	0.00	1.69	3rd Wettest	Wettest to Date	2011
Feb–Dec 2003 11-Month	1.69	0.02	1.67	128th Driest	Driest since: 2002	1930
Feb–Dec 2003 11-Month	1.69	0.02	1.67	3rd Wettest	Wettest to Date	2018
Jan–Dec 2003 12-Month	1.47	0.03	1.44	127th Driest	Driest since: 2002	1930
Jan–Dec 2003 12-Month	1.47	0.03	1.44	4th Wettest	Wettest since: 1996	2018
Jul 2002–Dec 2003 18-Month	0.95	0.02	0.93	120th Driest	Driest since: 2002	1965
Jul 2002–Dec 2003 18-Month	0.95	0.02	0.93	10th Wettest	Wettest since: 1996	2019
Jan 2002–Dec 2003 24-Month	0.63	0.03	0.60	111th Driest	Driest since: 2002	1931
Jan 2002–Dec 2003 24-Month	0.63	0.03	0.60	19th Wettest	Wettest since: 1997	2019
Jan 2001–Dec 2003 36-Month	0.19	0.03	0.16	77th Driest	Driest since: 2002	1965
Jan 2001–Dec 2003 36-Month	0.19	0.03	0.16	52nd Wettest	Wettest since: 1998	2020
Jan 2000–Dec 2003 48-Month	0.17	0.03	0.14	80th Driest	Driest since: 2002	1966
Jan 2000–Dec 2003 48-Month	0.17	0.03	0.14	48th Wettest	Wettest since: 1999	2021
Jan 1999–Dec 2003 60-Month	0.06	0.03	0.03	60th Driest	Driest since: 2002	1966
	0.06	0.03	0.03	67th Wettest	Wettest since: 2000	1976, 1979, 2021
	Ties: 1999

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 22, 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 2003 Palmer Z-Index Rankings

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