Counties in Louisiana by average annual temperature

Terrebonne Parish had the highest average annual temperature of 64 counties in 2021, at 70.2 °F. Lincoln Parish had the lowest, at 64.8 °F. The median was 67.5 °F and the figure for Louisiana was 67.5 °F. Source: NOAA National Centers for Environmental Information.

Highest70.2Terrebonne Parish

Lowest64.8Lincoln Parish

Median67.564 counties

Louisiana67.5History

Map of counties, 2021

Under 66
66 to 67
67 to 68
68 to 69
69 and over

°F, 2021. Source: NOAA NCEI, NOAA Climate at a Glance, January to December average temperature, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2021

°F. Source: NOAA NCEI, NOAA Climate at a Glance, January to December average temperature, counties. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2021 °F	Change on 2020
1	Terrebonne Parish	70.2	-2.2%
2	Lafourche Parish	70	-2%
3	Plaquemines Parish	69.9	-1.7%
4	Jefferson Parish	69.8	-1.7%
5	St. Charles Parish	69.7	-2%
6	Cameron Parish	69.4	-1.3%
7	Orleans Parish	69.3	-1.6%
7	St. Bernard Parish	69.3	-1.7%
7	St. Mary Parish	69.3	-2.1%
10	Assumption Parish	69.2	-2.1%
10	St. James Parish	69.2	-1.8%
10	St. John the Baptist Parish	69.2	-2%
13	Calcasieu Parish	69.1	-0.9%
14	Ascension Parish	68.8	-1.9%
14	Iberia Parish	68.8	-1.9%
16	Iberville Parish	68.7	-1.7%
16	St. Martin Parish	68.7	-1.7%
18	Jefferson Davis Parish	68.5	-1%
18	Lafayette Parish	68.5	-1.3%
18	Vermilion Parish	68.5	-2.1%
21	West Baton Rouge Parish	68.4	-1.9%
22	Acadia Parish	68.2	-1.3%
22	Livingston Parish	68.2	-2%
22	St. Tammany Parish	68.2	-1.7%
25	East Baton Rouge Parish	68.1	-2%
26	Beauregard Parish	68	-1%
26	Pointe Coupee Parish	68	-1.6%
28	Tangipahoa Parish	67.9	-1.7%
29	Allen Parish	67.7	-0.9%
29	St. Landry Parish	67.7	-1.3%
29	West Feliciana Parish	67.7	-1.6%
32	Washington Parish	67.5	-1.5%
33	East Feliciana Parish	67.4	-1.9%
33	Evangeline Parish	67.4	-1%
33	St. Helena Parish	67.4	-1.7%
36	Vernon Parish	67.3	-0.9%
37	Avoyelles Parish	67.1	-0.9%
38	Concordia Parish	67	-0.7%
39	Rapides Parish	66.9	-0.9%
40	Catahoula Parish	66.8	-0.3%
40	Sabine Parish	66.8	-0.4%
42	Tensas Parish	66.6	0%
43	LaSalle Parish	66.5	-0.6%
43	Natchitoches Parish	66.5	-0.6%
45	De Soto Parish	66.4	+0.2%
46	Grant Parish	66.3	-0.6%
46	Red River Parish	66.3	-0.5%
48	Caddo Parish	66.2	+0.3%
48	Franklin Parish	66.2	0%
50	Bossier Parish	66.1	+0.3%
50	Madison Parish	66.1	+0.2%
52	Webster Parish	65.9	+0.8%
53	Caldwell Parish	65.8	-0.5%
53	Winn Parish	65.8	-0.8%
55	Richland Parish	65.6	0%
56	Bienville Parish	65.5	-0.6%
57	Morehouse Parish	65.4	+0.6%
58	East Carroll Parish	65.3	-0.5%
58	West Carroll Parish	65.3	+0.2%
60	Ouachita Parish	65.1	-0.5%
61	Jackson Parish	65	-0.8%
62	Claiborne Parish	64.9	+1.1%
62	Union Parish	64.9	+0.2%
64	Lincoln Parish	64.8	-0.2%

Other periods

About this ranking

Mean air temperature from January to December, in degrees Fahrenheit: the average of the 12 monthly mean temperatures. NOAA computes it from its climate divisional dataset (nClimDiv): station readings interpolated onto a 5 km grid and averaged over the area.

Values are area averages, so a county with mountains and valleys has one value for very different local climates. NOAA revises the last two years every month.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December average temperature, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

NOAA National Centers for Environmental Information. (2026). NOAA Climate at a Glance, January to December average temperature, counties (Counties in Louisiana by average annual temperature, 2021) [Data set]. Retrieved October 12, 2026, from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping

MLA 9

NOAA Climate at a Glance, January to December average temperature, counties, Counties in Louisiana by average annual temperature, 2021. NOAA National Centers for Environmental Information, 6 Oct. 2026, https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Invokely, https://invokely.ai/rankings/average-annual-temperature/louisiana-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

NOAA National Centers for Environmental Information. 2026. NOAA Climate at a Glance, January to December average temperature, counties. Counties in Louisiana by average annual temperature, 2021. Dataset. Accessed October 12, 2026. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Also distributed by Invokely, https://invokely.ai/rankings/average-annual-temperature/louisiana-counties?period=2021.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December average temperature, counties, Counties in Louisiana by average annual temperature, 2021 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping, via Invokely: https://invokely.ai/rankings/average-annual-temperature/louisiana-counties?period=2021 (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_louisiana_by_2021,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December average temperature, counties: Counties in Louisiana by average annual temperature, 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/louisiana-counties?period=2021. Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December average temperature, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - NOAA National Centers for Environmental Information
TI  - NOAA Climate at a Glance, January to December average temperature, counties: Counties in Louisiana by average annual temperature, 2021
PY  - 2026
DA  - 2026/10/06
PB  - NOAA National Centers for Environmental Information
DB  - Invokely
UR  - https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping
L2  - https://invokely.ai/rankings/average-annual-temperature/louisiana-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-annual-temperature/louisiana-counties?period=2021.
N1  - Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December average temperature, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.
ER  -

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Questions

Which county has the highest average annual temperature?

Terrebonne Parish, with 70.2 °F in 2021, according to NOAA National Centers for Environmental Information.

Which county has the lowest average annual temperature?

Lincoln Parish, with 64.8 °F in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: NOAA National Centers for Environmental Information, NOAA Climate at a Glance, January to December average temperature, counties. Retrieved 2026-10-12.