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 9

December 1949 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1949 1-Month	0.11	-0.10	0.21	81st Driest	Driest since: 1948	2021
December 1949 1-Month	0.11	-0.10	0.21	50th Wettest	Wettest since: 1947	2009
Nov–Dec 1949 2-Month	-0.91	-0.07	-0.84	47th Driest	Driest since: 1942	1906
Nov–Dec 1949 2-Month	-0.91	-0.07	-0.84	84th Wettest	Wettest since: 1948	1947
Oct–Dec 1949 3-Month	-0.29	0.01	-0.30	58th Driest	Driest since: 1946	2011
Oct–Dec 1949 3-Month	-0.29	0.01	-0.30	73rd Wettest	Wettest since: 1948	2009
Sep–Dec 1949 4-Month	-0.04	-0.04	0.00	72nd Driest	Driest since: 1946	1924
Sep–Dec 1949 4-Month	-0.04	-0.04	0.00	59th Wettest	Wettest since: 1948	2002
Aug–Dec 1949 5-Month	-0.12	-0.05	-0.07	62nd Driest	Driest since: 1946	1924
Aug–Dec 1949 5-Month	-0.12	-0.05	-0.07	69th Wettest	Wettest since: 1948	1977
Jul–Dec 1949 6-Month	0.02	-0.04	0.06	65th Driest	Driest since: 1946	1924
Jul–Dec 1949 6-Month	0.02	-0.04	0.06	66th Wettest	Wettest since: 1948	1898
Jun–Dec 1949 7-Month	-0.04	-0.04	0.00	59th Driest	Driest since: 1939	1924
	-0.04	-0.04	0.00	72nd Wettest	Wettest since: 1948	1898
	Ties: 1939
May–Dec 1949 8-Month	-0.34	-0.04	-0.30	43rd Driest	Driest since: 1938	1924
May–Dec 1949 8-Month	-0.34	-0.04	-0.30	88th Wettest	Wettest since: 1948	1942, 1975
Apr–Dec 1949 9-Month	0.00	-0.04	0.04	61st Driest	Driest since: 1943	1924
Apr–Dec 1949 9-Month	0.00	-0.04	0.04	70th Wettest	Wettest since: 1948	2021
Mar–Dec 1949 10-Month	0.31	-0.05	0.36	89th Driest	Driest since: 1945	1924
Mar–Dec 1949 10-Month	0.31	-0.05	0.36	42nd Wettest	Wettest since: 1948	2021
Feb–Dec 1949 11-Month	0.17	-0.07	0.24	84th Driest	Driest since: 1944	2023
	0.17	-0.07	0.24	47th Wettest	Wettest since: 1948	2021
	Ties: 1934
Jan–Dec 1949 12-Month	0.00	-0.05	0.05	74th Driest	Driest since: 1943	2023
	0.00	-0.05	0.05	57th Wettest	Wettest since: 1948	1991
	Ties: 1931
Jul 1948–Dec 1949 18-Month	0.45	-0.04	0.49	109th Driest	Driest since: 1948	1904
Jul 1948–Dec 1949 18-Month	0.45	-0.04	0.49	21st Wettest	Wettest since: 1946	1946
Jan 1948–Dec 1949 24-Month	0.28	-0.04	0.32	97th Driest	Driest since: 1944	2000
Jan 1948–Dec 1949 24-Month	0.28	-0.04	0.32	33rd Wettest	Wettest since: 1948	1992
Jan 1947–Dec 1949 36-Month	0.37	-0.04	0.41	113th Driest	Driest since: 1945	1904
Jan 1947–Dec 1949 36-Month	0.37	-0.04	0.41	16th Wettest	Wettest since: 1948	1993
Jan 1946–Dec 1949 48-Month	0.54	-0.03	0.57	123rd Driest	Driest since: 1946	1904
Jan 1946–Dec 1949 48-Month	0.54	-0.03	0.57	5th Wettest	Wettest since: 1948	1994
Jan 1945–Dec 1949 60-Month	0.47	-0.03	0.50	121st Driest	Driest since: 1947	1906
Jan 1945–Dec 1949 60-Month	0.47	-0.03	0.50	6th Wettest	Wettest since: 1948	1995

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 24, 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

December 1949 Palmer Z-Index Rankings

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