Counties in Louisiana by annual precipitation, 2025

Lafayette Parish had the highest annual precipitation of 64 counties in 2025, at 61.68 inches. Terrebonne Parish had the lowest, at 47.28 inches. The median was 52.94 inches and the figure for Louisiana was 53.05 inches. Source: NOAA National Centers for Environmental Information.

Highest61.68Lafayette Parish

Lowest47.28Terrebonne Parish

Median52.9464 counties

Louisiana53.05History

Map of counties, 2025

Under 51
51 to 52
52 to 53
53 to 55
55 to 57
57 and over

inches, 2025. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2025

inches. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2025 inches	Change on 2024
1	Lafayette Parish	61.68	-8.2%
2	St. Landry Parish	60.89	-9.4%
3	Acadia Parish	59.88	-6.6%
4	Iberville Parish	59.41	-11.1%
5	St. Martin Parish	59.11	-11.4%
6	West Baton Rouge Parish	58.66	-11.1%
7	Pointe Coupee Parish	58.17	-13.8%
8	East Baton Rouge Parish	57.57	-14.7%
9	West Carroll Parish	57.21	-16.7%
10	West Feliciana Parish	57.17	-11.6%
11	East Feliciana Parish	56.83	-13%
12	Sabine Parish	56.58	-31.3%
13	Jefferson Davis Parish	56.41	-10.6%
14	Iberia Parish	56.39	-10.8%
15	East Carroll Parish	56.11	-15.1%
16	Ascension Parish	55.73	-23.5%
17	Vermilion Parish	55.6	-10.3%
18	Evangeline Parish	55.28	-16.5%
19	Jefferson Parish	54.78	-41.6%
20	St. Charles Parish	54.76	-37.6%
21	Claiborne Parish	54.68	-19%
21	Morehouse Parish	54.68	-21.3%
23	St. Mary Parish	54.58	-17.8%
24	St. Bernard Parish	54.07	-35.6%
25	Orleans Parish	53.81	-36.9%
26	Avoyelles Parish	53.76	-30%
27	Lincoln Parish	53.47	-26.9%
28	Rapides Parish	53.46	-34.1%
29	Union Parish	53.41	-23.6%
30	Allen Parish	53.09	-20.7%
31	Caldwell Parish	52.99	-25%
32	Cameron Parish	52.95	-16%
33	Plaquemines Parish	52.92	-42.1%
34	St. James Parish	52.81	-30.3%
35	LaSalle Parish	52.71	-35%
36	Ouachita Parish	52.69	-24.6%
37	St. John the Baptist Parish	52.62	-34.3%
38	St. Helena Parish	52.3	-19.2%
39	Assumption Parish	52.24	-30.2%
40	Calcasieu Parish	52.22	-18.9%
41	Concordia Parish	52.21	-26.2%
41	Vernon Parish	52.21	-34.2%
43	Natchitoches Parish	52.15	-31.9%
44	Richland Parish	51.98	-23.1%
45	Livingston Parish	51.84	-29.2%
46	Beauregard Parish	51.8	-23.2%
47	Jackson Parish	51.69	-29%
48	Grant Parish	51.64	-36.3%
49	Catahoula Parish	51.46	-31%
50	Madison Parish	51.3	-17.9%
51	De Soto Parish	51.29	-31.2%
52	Lafourche Parish	51.25	-38.7%
53	Winn Parish	51.05	-31.9%
54	Webster Parish	50.58	-24.5%
55	Red River Parish	49.82	-27.4%
56	Caddo Parish	49.72	-29.1%
57	Bienville Parish	49.53	-29%
58	Franklin Parish	49.47	-26.2%
59	Tensas Parish	49.38	-23.3%
60	St. Tammany Parish	48.34	-35.8%
61	Bossier Parish	48.15	-29.3%
62	Washington Parish	47.96	-27%
63	Tangipahoa Parish	47.54	-31.7%
64	Terrebonne Parish	47.28	-35.1%

Other periods

About this ranking

Total precipitation from January to December, in inches: rain plus the water content of snow and other frozen precipitation. 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, not the reading at one weather station. 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 precipitation, 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 precipitation, counties (Counties in Louisiana by annual precipitation, 2025) [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 precipitation, counties, Counties in Louisiana by annual precipitation, 2025. 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/annual-precipitation/louisiana-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

NOAA National Centers for Environmental Information. 2026. NOAA Climate at a Glance, January to December precipitation, counties. Counties in Louisiana by annual precipitation, 2025. 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/annual-precipitation/louisiana-counties.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December precipitation, counties, Counties in Louisiana by annual precipitation, 2025 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping, via Invokely: https://invokely.ai/rankings/annual-precipitation/louisiana-counties (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_louisiana_by_2025,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December precipitation, counties: Counties in Louisiana by annual precipitation, 2025}},
  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/annual-precipitation/louisiana-counties. Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, 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 precipitation, counties: Counties in Louisiana by annual precipitation, 2025
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/annual-precipitation/louisiana-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/annual-precipitation/louisiana-counties.
N1  - Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, 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 annual precipitation?

Lafayette Parish, with 61.68 inches in 2025, according to NOAA National Centers for Environmental Information.

Which county has the lowest annual precipitation?

Terrebonne Parish, with 47.28 inches in 2025.

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 precipitation, counties. Retrieved 2026-10-12.