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 2

January 1990 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
January 1990 1-Month	3.74	-0.15	3.89	126th Driest	Driest since: 1989	1986
January 1990 1-Month	3.74	-0.15	3.89	6th Wettest	Wettest since: 1979	1999
Dec 1989–Jan 1990 2-Month	1.56	-0.12	1.68	119th Driest	Driest since: 1989	1981
Dec 1989–Jan 1990 2-Month	1.56	-0.12	1.68	12th Wettest	Wettest since: 1983	1932
Nov 1989–Jan 1990 3-Month	0.51	-0.16	0.67	95th Driest	Driest since: 1986	2022
Nov 1989–Jan 1990 3-Month	0.51	-0.16	0.67	36th Wettest	Wettest since: 1989	1932
Oct 1989–Jan 1990 4-Month	0.07	-0.12	0.19	76th Driest	Driest since: 1986	1904
Oct 1989–Jan 1990 4-Month	0.07	-0.12	0.19	55th Wettest	Wettest since: 1989	1932
Sep 1989–Jan 1990 5-Month	-0.11	-0.10	-0.01	62nd Driest	Driest since: 1982	1904
Sep 1989–Jan 1990 5-Month	-0.11	-0.10	-0.01	69th Wettest	Wettest since: 1989	2010
Aug 1989–Jan 1990 6-Month	-0.10	-0.05	-0.05	65th Driest	Driest since: 1982	1955
	-0.10	-0.05	-0.05	66th Wettest	Wettest since: 1989	2010
	Ties: 1903
Jul 1989–Jan 1990 7-Month	0.40	-0.04	0.44	88th Driest	Driest since: 1989	1925
	0.40	-0.04	0.44	43rd Wettest	Wettest since: 1987	2010
	Ties: 1942
Jun 1989–Jan 1990 8-Month	1.27	-0.03	1.30	124th Driest	Driest since: 1989	1925
	1.27	-0.03	1.30	7th Wettest	Wettest since: 1983	1962
	Ties: 1941
May 1989–Jan 1990 9-Month	1.64	-0.04	1.68	130th Driest	Driest since: 1989	1925
May 1989–Jan 1990 9-Month	1.64	-0.04	1.68	1st Wettest	Wettest to Date	1990
Apr 1989–Jan 1990 10-Month	1.26	-0.01	1.27	126th Driest	Driest since: 1989	1925
Apr 1989–Jan 1990 10-Month	1.26	-0.01	1.27	5th Wettest	Wettest since: 1975	1992
Mar 1989–Jan 1990 11-Month	1.24	-0.01	1.25	128th Driest	Driest since: 1989	2011
Mar 1989–Jan 1990 11-Month	1.24	-0.01	1.25	3rd Wettest	Wettest since: 1974	1962
Feb 1989–Jan 1990 12-Month	1.15	-0.02	1.17	127th Driest	Driest since: 1989	1955
Feb 1989–Jan 1990 12-Month	1.15	-0.02	1.17	4th Wettest	Wettest since: 1962	1962
Aug 1988–Jan 1990 18-Month	0.89	-0.03	0.92	119th Driest	Driest since: 1989	1955
Aug 1988–Jan 1990 18-Month	0.89	-0.03	0.92	11th Wettest	Wettest since: 1984	1976
Feb 1988–Jan 1990 24-Month	0.44	-0.02	0.46	102nd Driest	Driest since: 1989	2012
Feb 1988–Jan 1990 24-Month	0.44	-0.02	0.46	28th Wettest	Wettest since: 1985	1975
Feb 1987–Jan 1990 36-Month	0.33	-0.02	0.35	104th Driest	Driest since: 1989	1965
Feb 1987–Jan 1990 36-Month	0.33	-0.02	0.35	25th Wettest	Wettest since: 1986	1976
Feb 1986–Jan 1990 48-Month	0.29	-0.03	0.32	101st Driest	Driest since: 1989	1966
Feb 1986–Jan 1990 48-Month	0.29	-0.03	0.32	27th Wettest	Wettest since: 1987	1976
Feb 1985–Jan 1990 60-Month	0.21	-0.03	0.24	97th Driest	Driest since: 1989	1967
Feb 1985–Jan 1990 60-Month	0.21	-0.03	0.24	30th Wettest	Wettest since: 1988	1976

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 30, 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 2

January 1990 Palmer Z-Index Rankings

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