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.

Louisiana, Climate Division 1

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	-1.08	0.10	-1.18	41st Driest	Driest since: 1984	2010
December 1989 1-Month	-1.08	0.10	-1.18	90th Wettest	Wettest since: 1988	1931
Nov–Dec 1989 2-Month	-1.49	-0.03	-1.46	24th Driest	Driest since: 1981	1981
Nov–Dec 1989 2-Month	-1.49	-0.03	-1.46	107th Wettest	Wettest since: 1988	1940
Oct–Dec 1989 3-Month	-1.33	-0.02	-1.31	23rd Driest	Driest since: 1977	2005
	-1.33	-0.02	-1.31	108th Wettest	Wettest since: 1988	2018
	Ties: 1899
Sep–Dec 1989 4-Month	-1.06	0.00	-1.06	27th Driest	Driest since: 1980	1924
Sep–Dec 1989 4-Month	-1.06	0.00	-1.06	104th Wettest	Wettest since: 1988	2018
Aug–Dec 1989 5-Month	-0.60	0.05	-0.65	40th Driest	Driest since: 1980	1924
Aug–Dec 1989 5-Month	-0.60	0.05	-0.65	91st Wettest	Wettest since: 1988	2009
Jul–Dec 1989 6-Month	0.20	0.07	0.13	74th Driest	Driest since: 1988	1924
Jul–Dec 1989 6-Month	0.20	0.07	0.13	57th Wettest	Wettest since: 1987	2009
Jun–Dec 1989 7-Month	1.16	0.06	1.10	115th Driest	Driest since: 1988	1924
Jun–Dec 1989 7-Month	1.16	0.06	1.10	16th Wettest	Wettest since: 1986	1961
May–Dec 1989 8-Month	1.51	0.04	1.47	121st Driest	Driest since: 1988	2010
	1.51	0.04	1.47	10th Wettest	Wettest since: 1986	2009
	Ties: 1968
Apr–Dec 1989 9-Month	1.11	0.07	1.04	115th Driest	Driest since: 1988	2010
Apr–Dec 1989 9-Month	1.11	0.07	1.04	16th Wettest	Wettest since: 1986	1905
Mar–Dec 1989 10-Month	1.12	0.08	1.04	116th Driest	Driest since: 1988	2010
Mar–Dec 1989 10-Month	1.12	0.08	1.04	15th Wettest	Wettest since: 1974	1905
Feb–Dec 1989 11-Month	1.09	0.05	1.04	117th Driest	Driest since: 1988	2010, 2011
Feb–Dec 1989 11-Month	1.09	0.05	1.04	14th Wettest	Wettest since: 1973	1905
Jan–Dec 1989 12-Month	1.14	0.04	1.10	117th Driest	Driest since: 1988	2010
Jan–Dec 1989 12-Month	1.14	0.04	1.10	14th Wettest	Wettest since: 1979	1905
Jul 1988–Dec 1989 18-Month	0.79	0.05	0.74	116th Driest	Driest since: 1988	2011
Jul 1988–Dec 1989 18-Month	0.79	0.05	0.74	14th Wettest	Wettest since: 1975	1997
Jan 1988–Dec 1989 24-Month	0.30	0.04	0.26	90th Driest	Driest since: 1988	2011
	0.30	0.04	0.26	40th Wettest	Wettest since: 1980	1974
	Ties: 1913, 1942, 1980
Jan 1987–Dec 1989 36-Month	0.20	0.04	0.16	84th Driest	Driest since: 1988	2012
Jan 1987–Dec 1989 36-Month	0.20	0.04	0.16	45th Wettest	Wettest since: 1986	1991
Jan 1986–Dec 1989 48-Month	0.27	0.04	0.23	94th Driest	Driest since: 1988	1954, 1965
Jan 1986–Dec 1989 48-Month	0.27	0.04	0.23	34th Wettest	Wettest since: 1977	1992
Jan 1985–Dec 1989 60-Month	0.22	0.03	0.19	92nd Driest	Driest since: 1988	1967
	0.22	0.03	0.19	35th Wettest	Wettest since: 1986	1993
	Ties: 1986

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

Louisiana, Climate Division 1

December 1989 Palmer Z-Index Rankings

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