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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.

Kentucky, Climate Division 2

December 1989 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1989 1-Month	-1.28	0.02	-1.30	26th Driest	Driest since: 1985	1930
	-1.28	0.02	-1.30	105th Wettest	Wettest since: 1988	1978
	Ties: 1928
Nov–Dec 1989 2-Month	-0.29	-0.07	-0.22	65th Driest	Driest since: 1981	1930
Nov–Dec 1989 2-Month	-0.29	-0.07	-0.22	66th Wettest	Wettest since: 1988	1978
Oct–Dec 1989 3-Month	0.30	0.00	0.30	72nd Driest	Driest since: 1987	1953, 1963
Oct–Dec 1989 3-Month	0.30	0.00	0.30	59th Wettest	Wettest since: 1988	1926
Sep–Dec 1989 4-Month	0.56	-0.03	0.59	82nd Driest	Driest since: 1987	1953
Sep–Dec 1989 4-Month	0.56	-0.03	0.59	49th Wettest	Wettest since: 1988	1979
Aug–Dec 1989 5-Month	0.64	-0.03	0.67	89th Driest	Driest since: 1987	1953
Aug–Dec 1989 5-Month	0.64	-0.03	0.67	42nd Wettest	Wettest since: 1988	1979
Jul–Dec 1989 6-Month	0.63	-0.07	0.70	93rd Driest	Driest since: 1987	1930
Jul–Dec 1989 6-Month	0.63	-0.07	0.70	38th Wettest	Wettest since: 1988	1979
Jun–Dec 1989 7-Month	0.90	-0.04	0.94	104th Driest	Driest since: 1988	1930
Jun–Dec 1989 7-Month	0.90	-0.04	0.94	27th Wettest	Wettest since: 1982	1979
May–Dec 1989 8-Month	0.84	-0.04	0.88	102nd Driest	Driest since: 1988	1930
	0.84	-0.04	0.88	29th Wettest	Wettest since: 1984	1979
	Ties: 1957
Apr–Dec 1989 9-Month	0.59	-0.04	0.63	94th Driest	Driest since: 1988	1930
Apr–Dec 1989 9-Month	0.59	-0.04	0.63	37th Wettest	Wettest since: 1984	1979
Mar–Dec 1989 10-Month	0.66	-0.04	0.70	98th Driest	Driest since: 1988	1930
Mar–Dec 1989 10-Month	0.66	-0.04	0.70	33rd Wettest	Wettest since: 1984	1979
Feb–Dec 1989 11-Month	1.24	-0.05	1.29	125th Driest	Driest since: 1988	1930
Feb–Dec 1989 11-Month	1.24	-0.05	1.29	6th Wettest	Wettest since: 1979	1979
Jan–Dec 1989 12-Month	1.18	-0.04	1.22	126th Driest	Driest since: 1988	1930
Jan–Dec 1989 12-Month	1.18	-0.04	1.22	5th Wettest	Wettest since: 1979	1979
Jul 1988–Dec 1989 18-Month	1.14	-0.04	1.18	125th Driest	Driest since: 1988	1931
Jul 1988–Dec 1989 18-Month	1.14	-0.04	1.18	5th Wettest	Wettest since: 1979	1979
Jan 1988–Dec 1989 24-Month	0.53	-0.04	0.57	107th Driest	Driest since: 1988	1931
Jan 1988–Dec 1989 24-Month	0.53	-0.04	0.57	23rd Wettest	Wettest since: 1980	1979
Jan 1987–Dec 1989 36-Month	0.03	-0.03	0.06	67th Driest	Driest since: 1988	1954
Jan 1987–Dec 1989 36-Month	0.03	-0.03	0.06	62nd Wettest	Wettest since: 1985	2020
Jan 1986–Dec 1989 48-Month	-0.09	-0.03	-0.06	44th Driest	Driest since: 1988	1955
	-0.09	-0.03	-0.06	84th Wettest	Wettest since: 1986	2021
	Ties: 1907, 1921, 1925
Jan 1985–Dec 1989 60-Month	-0.14	-0.03	-0.11	43rd Driest	Driest since: 1988	1934
Jan 1985–Dec 1989 60-Month	-0.14	-0.03	-0.11	84th Wettest	Wettest since: 1986	2021

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 24, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings

Climate at a Glance Divisional Rankings

Divisional Rankings

Kentucky, Climate Division 2

December 1989 Palmer Z-Index Rankings

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