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 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	-1.60	-0.10	-1.50	29th Driest	Driest since: 1964	2021
December 1970 1-Month	-1.60	-0.10	-1.50	102nd Wettest	Wettest since: 1969	2009
Nov–Dec 1970 2-Month	-1.46	-0.07	-1.39	24th Driest	Driest since: 1969	1906
Nov–Dec 1970 2-Month	-1.46	-0.07	-1.39	107th Wettest	Wettest since: 1968	1947
Oct–Dec 1970 3-Month	-0.06	0.01	-0.07	67th Driest	Driest since: 1969	2011
Oct–Dec 1970 3-Month	-0.06	0.01	-0.07	64th Wettest	Wettest since: 1968	2009
Sep–Dec 1970 4-Month	0.12	-0.04	0.16	77th Driest	Driest since: 1969	1924
Sep–Dec 1970 4-Month	0.12	-0.04	0.16	54th Wettest	Wettest since: 1967	2002
Aug–Dec 1970 5-Month	0.34	-0.05	0.39	91st Driest	Driest since: 1969	1924
Aug–Dec 1970 5-Month	0.34	-0.05	0.39	40th Wettest	Wettest since: 1967	1977
Jul–Dec 1970 6-Month	0.24	-0.04	0.28	86th Driest	Driest since: 1969	1924
Jul–Dec 1970 6-Month	0.24	-0.04	0.28	45th Wettest	Wettest since: 1967	1898
Jun–Dec 1970 7-Month	0.15	-0.04	0.19	72nd Driest	Driest since: 1969	1924
Jun–Dec 1970 7-Month	0.15	-0.04	0.19	59th Wettest	Wettest since: 1967	1898
May–Dec 1970 8-Month	0.16	-0.04	0.20	68th Driest	Driest since: 1969	1924
May–Dec 1970 8-Month	0.16	-0.04	0.20	63rd Wettest	Wettest since: 1967	1942, 1975
Apr–Dec 1970 9-Month	-0.14	-0.04	-0.10	50th Driest	Driest since: 1969	1924
Apr–Dec 1970 9-Month	-0.14	-0.04	-0.10	81st Wettest	Wettest since: 1967	2021
Mar–Dec 1970 10-Month	0.05	-0.05	0.10	71st Driest	Driest since: 1969	1924
	0.05	-0.05	0.10	60th Wettest	Wettest since: 1966	2021
	Ties: 1931
Feb–Dec 1970 11-Month	-0.10	-0.07	-0.03	61st Driest	Driest since: 1969	2023
Feb–Dec 1970 11-Month	-0.10	-0.07	-0.03	70th Wettest	Wettest since: 1967	2021
Jan–Dec 1970 12-Month	-0.16	-0.05	-0.11	58th Driest	Driest since: 1969	2023
Jan–Dec 1970 12-Month	-0.16	-0.05	-0.11	73rd Wettest	Wettest since: 1967	1991
Jul 1969–Dec 1970 18-Month	-0.48	-0.04	-0.44	26th Driest	Driest since: 1969	1904
Jul 1969–Dec 1970 18-Month	-0.48	-0.04	-0.44	104th Wettest	Wettest since: 1968	1946
Jan 1969–Dec 1970 24-Month	-0.35	-0.04	-0.31	36th Driest	Driest since: 1969	2000
Jan 1969–Dec 1970 24-Month	-0.35	-0.04	-0.31	94th Wettest	Wettest since: 1967	1992
Jan 1968–Dec 1970 36-Month	-0.47	-0.04	-0.43	18th Driest	Driest since: 1964	1904
Jan 1968–Dec 1970 36-Month	-0.47	-0.04	-0.43	111th Wettest	Wettest since: 1969	1993
Jan 1967–Dec 1970 48-Month	-0.36	-0.03	-0.33	27th Driest	Driest since: 1965	1904
Jan 1967–Dec 1970 48-Month	-0.36	-0.03	-0.33	101st Wettest	Wettest since: 1969	1994
Jan 1966–Dec 1970 60-Month	-0.08	-0.03	-0.05	59th Driest	Driest since: 1969	1906
	-0.08	-0.03	-0.05	68th Wettest	Wettest since: 1968	1995
	Ties: 1935

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 1970 Palmer Z-Index Rankings

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