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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 4

October 1977 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
October 1977 1-Month	3.76	0.09	3.67	124th Driest	Driest since: 1975	1963
October 1977 1-Month	3.76	0.09	3.67	7th Wettest	Wettest since: 1976	1925
Sep–Oct 1977 2-Month	1.92	0.00	1.92	115th Driest	Driest since: 1974	1897
Sep–Oct 1977 2-Month	1.92	0.00	1.92	16th Wettest	Wettest since: 1976	2006
Aug–Oct 1977 3-Month	2.24	0.02	2.22	122nd Driest	Driest since: 1976	1953
Aug–Oct 1977 3-Month	2.24	0.02	2.22	9th Wettest	Wettest since: 1926	1989
Jul–Oct 1977 4-Month	1.62	-0.03	1.65	115th Driest	Driest since: 1975	1930
	1.62	-0.03	1.65	16th Wettest	Wettest since: 1976	1979
	Ties: 1950
Jun–Oct 1977 5-Month	1.62	0.03	1.59	114th Driest	Driest since: 1975	1930
Jun–Oct 1977 5-Month	1.62	0.03	1.59	17th Wettest	Wettest since: 1976	1989
May–Oct 1977 6-Month	0.89	0.02	0.87	97th Driest	Driest since: 1975	1930
May–Oct 1977 6-Month	0.89	0.02	0.87	34th Wettest	Wettest since: 1976	1989
Apr–Oct 1977 7-Month	1.07	0.03	1.04	109th Driest	Driest since: 1976	1930
	1.07	0.03	1.04	22nd Wettest	Wettest since: 1974	1989
	Ties: 1909
Mar–Oct 1977 8-Month	0.71	0.03	0.68	100th Driest	Driest since: 1976	1930
Mar–Oct 1977 8-Month	0.71	0.03	0.68	31st Wettest	Wettest since: 1975	1989
Feb–Oct 1977 9-Month	0.34	0.02	0.32	82nd Driest	Driest since: 1970	1930
Feb–Oct 1977 9-Month	0.34	0.02	0.32	49th Wettest	Wettest since: 1976	1989
Jan–Oct 1977 10-Month	0.13	0.03	0.10	72nd Driest	Driest since: 1970	1930
Jan–Oct 1977 10-Month	0.13	0.03	0.10	59th Wettest	Wettest since: 1976	1989
Dec 1976–Oct 1977 11-Month	0.02	0.04	-0.02	65th Driest	Driest since: 1969	1930
Dec 1976–Oct 1977 11-Month	0.02	0.04	-0.02	65th Wettest	Wettest since: 1976	1979
Nov 1976–Oct 1977 12-Month	-0.10	0.03	-0.13	49th Driest	Driest since: 1969	1930
	-0.10	0.03	-0.13	81st Wettest	Wettest since: 1976	2020
	Ties: 1903, 1942
May 1976–Oct 1977 18-Month	0.42	0.02	0.40	88th Driest	Driest since: 1971	1931
	0.42	0.02	0.40	42nd Wettest	Wettest since: 1976	2004
	Ties: 1961
Nov 1975–Oct 1977 24-Month	0.14	0.03	0.11	64th Driest	Driest since: 1970	1931
Nov 1975–Oct 1977 24-Month	0.14	0.03	0.11	65th Wettest	Wettest since: 1976	2020
Nov 1974–Oct 1977 36-Month	0.47	0.03	0.44	100th Driest	Driest since: 1972	1932
Nov 1974–Oct 1977 36-Month	0.47	0.03	0.44	28th Wettest	Wettest since: 1976	2020
Nov 1973–Oct 1977 48-Month	0.67	0.03	0.64	116th Driest	Driest since: 1973	1933, 2008
Nov 1973–Oct 1977 48-Month	0.67	0.03	0.64	11th Wettest	Wettest since: 1976	2021
Nov 1972–Oct 1977 60-Month	0.65	0.03	0.62	115th Driest	Driest since: 1974	1934
Nov 1972–Oct 1977 60-Month	0.65	0.03	0.62	11th Wettest	Wettest since: 1976	2021

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 4

October 1977 Palmer Z-Index Rankings

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