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.

Kentucky, Climate Division 1

December 1999 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1999 1-Month	-1.15	-0.05	-1.10	30th Driest	Driest since: 1997	1963
	-1.15	-0.05	-1.10	101st Wettest	Wettest since: 1998	1990
	Ties: 1962
Nov–Dec 1999 2-Month	-2.23	-0.15	-2.08	8th Driest	Driest since: 1965	1930
Nov–Dec 1999 2-Month	-2.23	-0.15	-2.08	123rd Wettest	Wettest since: 1998	1957
Oct–Dec 1999 3-Month	-1.50	-0.07	-1.43	18th Driest	Driest since: 1965	1963
Oct–Dec 1999 3-Month	-1.50	-0.07	-1.43	113th Wettest	Wettest since: 1998	2001
Sep–Dec 1999 4-Month	-1.85	-0.07	-1.78	9th Driest	Driest since: 1963	1963
Sep–Dec 1999 4-Month	-1.85	-0.07	-1.78	122nd Wettest	Wettest since: 1998	2006
Aug–Dec 1999 5-Month	-2.09	-0.07	-2.02	6th Driest	Driest since: 1963	1953
	-2.09	-0.07	-2.02	125th Wettest	Wettest since: 1998	2006
	Ties: 1908
Jul–Dec 1999 6-Month	-2.09	-0.09	-2.00	4th Driest	Driest since: 1953	1953
Jul–Dec 1999 6-Month	-2.09	-0.09	-2.00	127th Wettest	Wettest since: 1998	1979
Jun–Dec 1999 7-Month	-1.50	-0.06	-1.44	14th Driest	Driest since: 1963	1953
Jun–Dec 1999 7-Month	-1.50	-0.06	-1.44	117th Wettest	Wettest since: 1998	1979
May–Dec 1999 8-Month	-1.38	-0.06	-1.32	12th Driest	Driest since: 1963	1930
May–Dec 1999 8-Month	-1.38	-0.06	-1.32	119th Wettest	Wettest since: 1998	1979
Apr–Dec 1999 9-Month	-1.25	-0.05	-1.20	13th Driest	Driest since: 1963	1930
	-1.25	-0.05	-1.20	118th Wettest	Wettest since: 1998	1979
	Ties: 1941
Mar–Dec 1999 10-Month	-1.22	-0.07	-1.15	12th Driest	Driest since: 1963	1930
Mar–Dec 1999 10-Month	-1.22	-0.07	-1.15	119th Wettest	Wettest since: 1998	1979
Feb–Dec 1999 11-Month	-1.25	-0.08	-1.17	11th Driest	Driest since: 1963	1930
Feb–Dec 1999 11-Month	-1.25	-0.08	-1.17	120th Wettest	Wettest since: 1998	1979
Jan–Dec 1999 12-Month	-0.91	-0.06	-0.85	17th Driest	Driest since: 1987	1930
Jan–Dec 1999 12-Month	-0.91	-0.06	-0.85	114th Wettest	Wettest since: 1998	1979
Jul 1998–Dec 1999 18-Month	-0.77	-0.07	-0.70	18th Driest	Driest since: 1964	1931
Jul 1998–Dec 1999 18-Month	-0.77	-0.07	-0.70	112th Wettest	Wettest since: 1998	1979
Jan 1998–Dec 1999 24-Month	-0.44	-0.06	-0.38	26th Driest	Driest since: 1992	1931
	-0.44	-0.06	-0.38	104th Wettest	Wettest since: 1998	1950
	Ties: 1992
Jan 1997–Dec 1999 36-Month	-0.20	-0.06	-0.14	37th Driest	Driest since: 1988	1954
	-0.20	-0.06	-0.14	92nd Wettest	Wettest since: 1998	1951
	Ties: 1937, 1948
Jan 1996–Dec 1999 48-Month	0.17	-0.05	0.22	83rd Driest	Driest since: 1995	1944
Jan 1996–Dec 1999 48-Month	0.17	-0.05	0.22	45th Wettest	Wettest since: 1998	1951
Jan 1995–Dec 1999 60-Month	0.15	-0.05	0.20	77th Driest	Driest since: 1995	1944
Jan 1995–Dec 1999 60-Month	0.15	-0.05	0.20	50th Wettest	Wettest since: 1998	2019, 2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 31, 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 1

December 1999 Palmer Z-Index Rankings

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