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 1911 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1911 1-Month	2.27	-0.10	2.37	116th Driest	Driest since: 1910	2021
December 1911 1-Month	2.27	-0.10	2.37	15th Wettest	Wettest since: 1905	2009
Nov–Dec 1911 2-Month	1.14	-0.07	1.21	105th Driest	Driest since: 1910	1906
Nov–Dec 1911 2-Month	1.14	-0.07	1.21	26th Wettest	Wettest since: 1907	1947
Oct–Dec 1911 3-Month	0.77	0.01	0.76	100th Driest	Driest since: 1910	2011
Oct–Dec 1911 3-Month	0.77	0.01	0.76	31st Wettest	Wettest since: 1905	2009
Sep–Dec 1911 4-Month	0.25	-0.04	0.29	85th Driest	Driest since: 1910	1924
Sep–Dec 1911 4-Month	0.25	-0.04	0.29	46th Wettest	Wettest since: 1907	2002
Aug–Dec 1911 5-Month	0.66	-0.05	0.71	102nd Driest	Driest since: 1910	1924
Aug–Dec 1911 5-Month	0.66	-0.05	0.71	29th Wettest	Wettest since: 1905	1977
Jul–Dec 1911 6-Month	0.83	-0.04	0.87	108th Driest	Driest since: 1910	1924
Jul–Dec 1911 6-Month	0.83	-0.04	0.87	23rd Wettest	Wettest since: 1905	1898
Jun–Dec 1911 7-Month	0.73	-0.04	0.77	105th Driest	Driest since: 1910	1924
Jun–Dec 1911 7-Month	0.73	-0.04	0.77	26th Wettest	Wettest since: 1905	1898
May–Dec 1911 8-Month	0.58	-0.04	0.62	103rd Driest	Driest since: 1910	1924
May–Dec 1911 8-Month	0.58	-0.04	0.62	28th Wettest	Wettest since: 1905	1942, 1975
Apr–Dec 1911 9-Month	0.74	-0.04	0.78	108th Driest	Driest since: 1910	1924
Apr–Dec 1911 9-Month	0.74	-0.04	0.78	23rd Wettest	Wettest since: 1905	2021
Mar–Dec 1911 10-Month	0.46	-0.05	0.51	95th Driest	Driest since: 1910	1924
Mar–Dec 1911 10-Month	0.46	-0.05	0.51	36th Wettest	Wettest since: 1905	2021
Feb–Dec 1911 11-Month	0.14	-0.07	0.21	81st Driest	Driest since: 1910	2023
Feb–Dec 1911 11-Month	0.14	-0.07	0.21	50th Wettest	Wettest since: 1905	2021
Jan–Dec 1911 12-Month	-0.03	-0.05	0.02	70th Driest	Driest since: 1910	2023
Jan–Dec 1911 12-Month	-0.03	-0.05	0.02	61st Wettest	Wettest since: 1905	1991
Jul 1910–Dec 1911 18-Month	0.11	-0.04	0.15	82nd Driest	Driest since: 1910	1904
Jul 1910–Dec 1911 18-Month	0.11	-0.04	0.15	48th Wettest	Wettest since: 1905	1946
Jan 1910–Dec 1911 24-Month	-0.20	-0.04	-0.16	51st Driest	Driest since: 1910	2000
Jan 1910–Dec 1911 24-Month	-0.20	-0.04	-0.16	79th Wettest	Wettest since: 1909	1992
Jan 1909–Dec 1911 36-Month	-0.16	-0.04	-0.12	58th Driest	Driest since: 1910	1904
Jan 1909–Dec 1911 36-Month	-0.16	-0.04	-0.12	71st Wettest	Wettest since: 1900	1993
Jan 1908–Dec 1911 48-Month	-0.19	-0.03	-0.16	48th Driest	Driest since: 1910	1904
Jan 1908–Dec 1911 48-Month	-0.19	-0.03	-0.16	80th Wettest	Wettest since: 1901	1994
Jan 1907–Dec 1911 60-Month	-0.21	-0.03	-0.18	46th Driest	Driest since: 1910	1906
Jan 1907–Dec 1911 60-Month	-0.21	-0.03	-0.18	81st Wettest	Wettest since: 1901	1995

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 22, 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 1911 Palmer Z-Index Rankings

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