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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.

Louisiana, Climate Division 9

January 1975 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
January 1975 1-Month	-1.20	0.13	-1.33	37th Driest	Driest since: 1971	1907
January 1975 1-Month	-1.20	0.13	-1.33	95th Wettest	Wettest since: 1974	1991
Dec 1974–Jan 1975 2-Month	-0.94	0.03	-0.97	42nd Driest	Driest since: 1971	1907
	-0.94	0.03	-0.97	89th Wettest	Wettest since: 1974	1991
	Ties: 1949
Nov 1974–Jan 1975 3-Month	-0.06	-0.02	-0.04	73rd Driest	Driest since: 1971	1907
Nov 1974–Jan 1975 3-Month	-0.06	-0.02	-0.04	58th Wettest	Wettest since: 1974	1998
Oct 1974–Jan 1975 4-Month	-0.41	0.03	-0.44	52nd Driest	Driest since: 1971	2012
Oct 1974–Jan 1975 4-Month	-0.41	0.03	-0.44	79th Wettest	Wettest since: 1974	1919
Sep 1974–Jan 1975 5-Month	-0.33	-0.01	-0.32	57th Driest	Driest since: 1970	1907
Sep 1974–Jan 1975 5-Month	-0.33	-0.01	-0.32	74th Wettest	Wettest since: 1974	1978
Aug 1974–Jan 1975 6-Month	-0.19	-0.03	-0.16	54th Driest	Driest since: 1970	1925
Aug 1974–Jan 1975 6-Month	-0.19	-0.03	-0.16	77th Wettest	Wettest since: 1974	1978
Jul 1974–Jan 1975 7-Month	-0.31	-0.01	-0.30	43rd Driest	Driest since: 1970	1925
Jul 1974–Jan 1975 7-Month	-0.31	-0.01	-0.30	88th Wettest	Wettest since: 1974	1978
Jun 1974–Jan 1975 8-Month	-0.45	-0.01	-0.44	38th Driest	Driest since: 1973	1925
Jun 1974–Jan 1975 8-Month	-0.45	-0.01	-0.44	93rd Wettest	Wettest since: 1974	1978
May 1974–Jan 1975 9-Month	-0.21	0.00	-0.21	48th Driest	Driest since: 1973	1907
May 1974–Jan 1975 9-Month	-0.21	0.00	-0.21	83rd Wettest	Wettest since: 1974	1992
Apr 1974–Jan 1975 10-Month	-0.13	0.00	-0.13	53rd Driest	Driest since: 1973	1907
Apr 1974–Jan 1975 10-Month	-0.13	0.00	-0.13	78th Wettest	Wettest since: 1974	1992
Mar 1974–Jan 1975 11-Month	-0.13	-0.01	-0.12	56th Driest	Driest since: 1973	1925
Mar 1974–Jan 1975 11-Month	-0.13	-0.01	-0.12	75th Wettest	Wettest since: 1974	1992
Feb 1974–Jan 1975 12-Month	-0.26	-0.03	-0.23	46th Driest	Driest since: 1973	1963
Feb 1974–Jan 1975 12-Month	-0.26	-0.03	-0.23	85th Wettest	Wettest since: 1974	1992
Aug 1973–Jan 1975 18-Month	0.06	-0.03	0.09	81st Driest	Driest since: 1973	1905
Aug 1973–Jan 1975 18-Month	0.06	-0.03	0.09	49th Wettest	Wettest since: 1974	1992
Feb 1973–Jan 1975 24-Month	0.16	-0.03	0.19	84th Driest	Driest since: 1974	2001
Feb 1973–Jan 1975 24-Month	0.16	-0.03	0.19	46th Wettest	Wettest since: 1968	1993
Feb 1972–Jan 1975 36-Month	0.01	-0.03	0.04	78th Driest	Driest since: 1973	1905
Feb 1972–Jan 1975 36-Month	0.01	-0.03	0.04	51st Wettest	Wettest since: 1974	1994
Feb 1971–Jan 1975 48-Month	0.02	-0.03	0.05	76th Driest	Driest since: 1974	1905
	0.02	-0.03	0.05	52nd Wettest	Wettest since: 1974	1995
	Ties: 1951, 1974
Feb 1970–Jan 1975 60-Month	-0.04	-0.03	-0.01	69th Driest	Driest since: 1974	1907
	-0.04	-0.03	-0.01	58th Wettest	Wettest since: 1969	1993
	Ties: 1927, 1936

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 29, 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 9

January 1975 Palmer Z-Index Rankings

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