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 2000 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
October 2000 1-Month	-1.54	0.14	-1.68	26th Driest	Driest since: 1994	2024
	-1.54	0.14	-1.68	105th Wettest	Wettest since: 1999	2005
	Ties: 1931
Sep–Oct 2000 2-Month	-0.53	0.10	-0.63	42nd Driest	Driest since: 1998	2024
Sep–Oct 2000 2-Month	-0.53	0.10	-0.63	89th Wettest	Wettest since: 1999	2011
Aug–Oct 2000 3-Month	-0.31	0.09	-0.40	53rd Driest	Driest since: 1998	1930
Aug–Oct 2000 3-Month	-0.31	0.09	-0.40	78th Wettest	Wettest since: 1999	2011
Jul–Oct 2000 4-Month	-0.40	0.05	-0.45	46th Driest	Driest since: 1998	1964
Jul–Oct 2000 4-Month	-0.40	0.05	-0.45	85th Wettest	Wettest since: 1999	2011
Jun–Oct 2000 5-Month	0.09	0.07	0.02	63rd Driest	Driest since: 1999	1930, 2024
Jun–Oct 2000 5-Month	0.09	0.07	0.02	68th Wettest	Wettest since: 1996	2003
May–Oct 2000 6-Month	0.12	0.00	0.12	65th Driest	Driest since: 1999	1964
May–Oct 2000 6-Month	0.12	0.00	0.12	66th Wettest	Wettest since: 1996	2011
Apr–Oct 2000 7-Month	0.06	0.01	0.05	64th Driest	Driest since: 1999	1963
	0.06	0.01	0.05	67th Wettest	Wettest since: 1996	2011
	Ties: 1935
Mar–Oct 2000 8-Month	0.23	0.03	0.20	74th Driest	Driest since: 1999	1963
Mar–Oct 2000 8-Month	0.23	0.03	0.20	57th Wettest	Wettest since: 1996	2011
Feb–Oct 2000 9-Month	0.15	0.04	0.11	67th Driest	Driest since: 1999	1941
Feb–Oct 2000 9-Month	0.15	0.04	0.11	64th Wettest	Wettest since: 1998	2011
Jan–Oct 2000 10-Month	0.13	0.06	0.07	65th Driest	Driest since: 1999	1963
	0.13	0.06	0.07	66th Wettest	Wettest since: 1998	2011
	Ties: 1950
Dec 1999–Oct 2000 11-Month	0.03	0.06	-0.03	60th Driest	Driest since: 1999	1963
Dec 1999–Oct 2000 11-Month	0.03	0.06	-0.03	70th Wettest	Wettest since: 1998	2011
Nov 1999–Oct 2000 12-Month	-0.04	0.03	-0.07	59th Driest	Driest since: 1999	1930
	-0.04	0.03	-0.07	71st Wettest	Wettest since: 1998	2011
	Ties: 1986
May 1999–Oct 2000 18-Month	-0.31	0.02	-0.33	33rd Driest	Driest since: 1999	1965
May 1999–Oct 2000 18-Month	-0.31	0.02	-0.33	97th Wettest	Wettest since: 1998	2019
Nov 1998–Oct 2000 24-Month	-0.35	0.03	-0.38	22nd Driest	Driest since: 1992	1966
Nov 1998–Oct 2000 24-Month	-0.35	0.03	-0.38	107th Wettest	Wettest since: 1999	2019
Nov 1997–Oct 2000 36-Month	-0.12	0.03	-0.15	36th Driest	Driest since: 1993	1965, 1966
	-0.12	0.03	-0.15	92nd Wettest	Wettest since: 1999	2019
	Ties: 1988
Nov 1996–Oct 2000 48-Month	-0.06	0.03	-0.09	38th Driest	Driest since: 1993	1966
	-0.06	0.03	-0.09	89th Wettest	Wettest since: 1999	2021
	Ties: 1919
Nov 1995–Oct 2000 60-Month	0.20	0.03	0.17	83rd Driest	Driest since: 1999	1966
Nov 1995–Oct 2000 60-Month	0.20	0.03	0.17	43rd Wettest	Wettest since: 1998	1976

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 2

October 2000 Palmer Z-Index Rankings

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