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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 3

December 1970 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1970 1-Month	-1.43	0.01	-1.44	27th Driest	Driest since: 1965	2021
	-1.43	0.01	-1.44	104th Wettest	Wettest since: 1969	1982
	Ties: 1913
Nov–Dec 1970 2-Month	-1.55	-0.11	-1.44	23rd Driest	Driest since: 1965	2021
Nov–Dec 1970 2-Month	-1.55	-0.11	-1.44	108th Wettest	Wettest since: 1969	1982
Oct–Dec 1970 3-Month	0.43	-0.07	0.50	86th Driest	Driest since: 1969	1924
Oct–Dec 1970 3-Month	0.43	-0.07	0.50	45th Wettest	Wettest since: 1968	1982
Sep–Dec 1970 4-Month	0.36	-0.06	0.42	89th Driest	Driest since: 1969	1924
Sep–Dec 1970 4-Month	0.36	-0.06	0.42	42nd Wettest	Wettest since: 1968	1982
Aug–Dec 1970 5-Month	0.61	-0.02	0.63	93rd Driest	Driest since: 1969	1924
Aug–Dec 1970 5-Month	0.61	-0.02	0.63	38th Wettest	Wettest since: 1968	2008
Jul–Dec 1970 6-Month	0.59	-0.02	0.61	96th Driest	Driest since: 1969	1924
Jul–Dec 1970 6-Month	0.59	-0.02	0.61	35th Wettest	Wettest since: 1968	2008
Jun–Dec 1970 7-Month	0.44	-0.01	0.45	91st Driest	Driest since: 1969	1924
Jun–Dec 1970 7-Month	0.44	-0.01	0.45	40th Wettest	Wettest since: 1968	1982
May–Dec 1970 8-Month	0.31	-0.01	0.32	89th Driest	Driest since: 1969	1924
May–Dec 1970 8-Month	0.31	-0.01	0.32	42nd Wettest	Wettest since: 1968	2004
Apr–Dec 1970 9-Month	0.16	0.02	0.14	76th Driest	Driest since: 1969	1924
Apr–Dec 1970 9-Month	0.16	0.02	0.14	55th Wettest	Wettest since: 1968	2004
Mar–Dec 1970 10-Month	0.11	0.01	0.10	77th Driest	Driest since: 1969	2010
Mar–Dec 1970 10-Month	0.11	0.01	0.10	54th Wettest	Wettest since: 1968	1975
Feb–Dec 1970 11-Month	0.00	0.00	0.00	71st Driest	Driest since: 1969	2010
Feb–Dec 1970 11-Month	0.00	0.00	0.00	60th Wettest	Wettest since: 1968	1975
Jan–Dec 1970 12-Month	-0.16	-0.01	-0.15	59th Driest	Driest since: 1969	2010
	-0.16	-0.01	-0.15	72nd Wettest	Wettest since: 1968	1975
	Ties: 1964
Jul 1969–Dec 1970 18-Month	-0.30	-0.01	-0.29	39th Driest	Driest since: 1967	1954
	-0.30	-0.01	-0.29	91st Wettest	Wettest since: 1969	1975
	Ties: 1956
Jan 1969–Dec 1970 24-Month	-0.47	-0.01	-0.46	26th Driest	Driest since: 1966	2011
Jan 1969–Dec 1970 24-Month	-0.47	-0.01	-0.46	104th Wettest	Wettest since: 1969	1975
Jan 1968–Dec 1970 36-Month	-0.01	-0.01	0.00	56th Driest	Driest since: 1969	1954
Jan 1968–Dec 1970 36-Month	-0.01	-0.01	0.00	73rd Wettest	Wettest since: 1968	1975
Jan 1967–Dec 1970 48-Month	-0.09	0.00	-0.09	47th Driest	Driest since: 1968	1954
	-0.09	0.00	-0.09	81st Wettest	Wettest since: 1969	1975
	Ties: 1903, 1924
Jan 1966–Dec 1970 60-Month	-0.10	0.00	-0.10	47th Driest	Driest since: 1969	1956
Jan 1966–Dec 1970 60-Month	-0.10	0.00	-0.10	80th Wettest	Wettest since: 1962	1975

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on April 1, 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 3

December 1970 Palmer Z-Index Rankings

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