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 1992 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
October 1992 1-Month	-0.27	0.09	-0.36	60th Driest	Driest since: 1991	1963
October 1992 1-Month	-0.27	0.09	-0.36	71st Wettest	Wettest since: 1990	2005
Sep–Oct 1992 2-Month	-0.15	0.07	-0.22	56th Driest	Driest since: 1991	1964
Sep–Oct 1992 2-Month	-0.15	0.07	-0.22	75th Wettest	Wettest since: 1990	2011
Aug–Oct 1992 3-Month	-0.21	0.04	-0.25	54th Driest	Driest since: 1991	1964
Aug–Oct 1992 3-Month	-0.21	0.04	-0.25	77th Wettest	Wettest since: 1990	2011
Jul–Oct 1992 4-Month	0.14	0.01	0.13	69th Driest	Driest since: 1991	1964
	0.14	0.01	0.13	62nd Wettest	Wettest since: 1990	2011
	Ties: 1917
Jun–Oct 1992 5-Month	0.19	0.03	0.16	74th Driest	Driest since: 1991	1964
	0.19	0.03	0.16	57th Wettest	Wettest since: 1990	2011
	Ties: 1898, 1922, 1947
May–Oct 1992 6-Month	0.21	-0.02	0.23	74th Driest	Driest since: 1991	1964
	0.21	-0.02	0.23	57th Wettest	Wettest since: 1990	2011
	Ties: 1940
Apr–Oct 1992 7-Month	0.04	-0.02	0.06	66th Driest	Driest since: 1991	1964
Apr–Oct 1992 7-Month	0.04	-0.02	0.06	65th Wettest	Wettest since: 1990	2011
Mar–Oct 1992 8-Month	0.16	-0.01	0.17	76th Driest	Driest since: 1991	1964
	0.16	-0.01	0.17	55th Wettest	Wettest since: 1990	2011
	Ties: 1922, 1979
Feb–Oct 1992 9-Month	0.01	0.00	0.01	59th Driest	Driest since: 1991	1964
Feb–Oct 1992 9-Month	0.01	0.00	0.01	72nd Wettest	Wettest since: 1990	2011
Jan–Oct 1992 10-Month	-0.10	0.01	-0.11	52nd Driest	Driest since: 1991	1991
	-0.10	0.01	-0.11	79th Wettest	Wettest since: 1990	2011
	Ties: 1917, 1918, 1925
Dec 1991–Oct 1992 11-Month	-0.09	0.01	-0.10	55th Driest	Driest since: 1991	1964, 1980
Dec 1991–Oct 1992 11-Month	-0.09	0.01	-0.10	75th Wettest	Wettest since: 1990	2011
Nov 1991–Oct 1992 12-Month	-0.15	-0.01	-0.14	50th Driest	Driest since: 1991	1965
	-0.15	-0.01	-0.14	80th Wettest	Wettest since: 1990	2011
	Ties: 1948
May 1991–Oct 1992 18-Month	-0.69	-0.02	-0.67	11th Driest	Driest since: 1981	1965
May 1991–Oct 1992 18-Month	-0.69	-0.02	-0.67	119th Wettest	Wettest since: 1991	2019
Nov 1990–Oct 1992 24-Month	-0.51	-0.02	-0.49	13th Driest	Driest since: 1981	1965
Nov 1990–Oct 1992 24-Month	-0.51	-0.02	-0.49	116th Wettest	Wettest since: 1991	2019
Nov 1989–Oct 1992 36-Month	-0.27	-0.01	-0.26	25th Driest	Driest since: 1982	1965
Nov 1989–Oct 1992 36-Month	-0.27	-0.01	-0.26	103rd Wettest	Wettest since: 1991	1975
Nov 1988–Oct 1992 48-Month	-0.12	-0.01	-0.11	41st Driest	Driest since: 1991	1966
	-0.12	-0.01	-0.11	86th Wettest	Wettest since: 1990	1976
	Ties: 1926, 1959
Nov 1987–Oct 1992 60-Month	-0.21	-0.01	-0.20	24th Driest	Driest since: 1983	1966
Nov 1987–Oct 1992 60-Month	-0.21	-0.01	-0.20	102nd Wettest	Wettest since: 1991	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 1992 Palmer Z-Index Rankings

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