Counties in Louisiana by annual precipitation

Calcasieu Parish had the highest annual precipitation of 64 counties in 2017, at 88.2 inches. Caddo Parish had the lowest, at 41.96 inches. The median was 69.07 inches and the figure for Louisiana was 64.06 inches. Source: NOAA National Centers for Environmental Information.

Highest88.2Calcasieu Parish

Lowest41.96Caddo Parish

Median69.0764 counties

Louisiana64.06History

Map of counties, 2017

Under 49
49 to 54
54 to 69
69 to 72
72 to 75
75 and over

inches, 2017. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2017

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

Full ranking

Rank	Counties	2017 inches	Change on 2016
1	Calcasieu Parish	88.2	+23.4%
2	Cameron Parish	81.83	+7.5%
3	Beauregard Parish	81.38	+35.8%
4	Jefferson Davis Parish	80.79	+12.9%
5	Washington Parish	80.65	+6.6%
6	Tangipahoa Parish	78.8	-2.8%
7	Livingston Parish	78.56	-4.3%
8	West Feliciana Parish	78.4	+7.8%
9	Iberville Parish	77.38	+4.2%
10	St. Tammany Parish	76.13	+16.1%
11	Ascension Parish	75.52	-8%
12	East Feliciana Parish	75.45	-0.5%
13	St. John the Baptist Parish	75.42	+8.5%
14	St. Mary Parish	74.8	-2.3%
15	St. Helena Parish	73.83	-6.5%
16	St. Martin Parish	73.81	-4.7%
17	Iberia Parish	73.29	-9%
18	Acadia Parish	73.01	-3.9%
19	Assumption Parish	72.47	-3.5%
20	Pointe Coupee Parish	71.97	+1.2%
21	Terrebonne Parish	71.61	+1.2%
22	St. Charles Parish	71.57	+6%
23	St. James Parish	71.49	-2%
24	East Baton Rouge Parish	71.11	-9.6%
25	Lafayette Parish	70.86	-13.1%
26	Allen Parish	70.71	+20.3%
27	West Baton Rouge Parish	70.36	-6.1%
28	Lafourche Parish	70	-1.5%
29	Jefferson Parish	69.5	+6.4%
30	Vermilion Parish	69.41	-15.5%
31	St. Bernard Parish	69.33	+11.9%
32	Orleans Parish	69.19	+6.7%
33	Vernon Parish	68.96	+19.8%
34	St. Landry Parish	67.9	-9.7%
35	Plaquemines Parish	65.77	+2.4%
36	Evangeline Parish	65.37	+7.3%
37	Sabine Parish	64.71	+15.8%
38	Avoyelles Parish	64.68	+11.9%
39	Rapides Parish	59.26	-6.1%
40	Natchitoches Parish	58.44	-2.1%
41	Concordia Parish	56.89	+5.9%
42	Grant Parish	55.03	-10.4%
43	LaSalle Parish	53.56	-6.4%
44	Tensas Parish	53.38	-2.8%
45	Catahoula Parish	52.85	-4.1%
46	Madison Parish	51.94	-15.1%
47	Winn Parish	50.9	-18.4%
48	East Carroll Parish	50.87	-13.4%
49	Red River Parish	49.98	-19.7%
50	West Carroll Parish	49.97	-19.2%
51	De Soto Parish	49.86	-16.8%
52	Morehouse Parish	49.54	-25.3%
53	Union Parish	48.58	-24.9%
54	Ouachita Parish	48.57	-30.9%
55	Richland Parish	47.55	-29.1%
56	Bienville Parish	46.16	-29.6%
57	Franklin Parish	46.07	-19%
58	Caldwell Parish	45.62	-25.5%
58	Jackson Parish	45.62	-33%
60	Claiborne Parish	45.06	-29.7%
61	Webster Parish	44.95	-30.8%
62	Lincoln Parish	44.53	-34%
63	Bossier Parish	42.71	-32.2%
64	Caddo Parish	41.96	-30.8%

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, 2017) [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, 2017. 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?period=2017. 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, 2017. 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?period=2017.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December precipitation, counties, Counties in Louisiana by annual precipitation, 2017 [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?period=2017 (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_louisiana_by_2017,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December precipitation, counties: Counties in Louisiana by annual precipitation, 2017}},
  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?period=2017. 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, 2017
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?period=2017
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/annual-precipitation/louisiana-counties?period=2017.
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  -

Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Embed code

<iframe src="https://invokely.ai/embed/rankings/annual-precipitation/louisiana-counties?period=2017" width="760" height="500" title="Counties in Louisiana by annual precipitation, 2017, chart from Invokely" loading="lazy" style="border:0;width:100%;max-width:760px" referrerpolicy="strict-origin-when-cross-origin"></iframe>

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Louisiana by annual precipitation using official data, and cite the source.

rank_places {"indicator":"precipitation_annual","level":"province","within":"Louisiana","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=precipitation_annual&level=province&within=Louisiana&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest annual precipitation?

Calcasieu Parish, with 88.2 inches in 2017, according to NOAA National Centers for Environmental Information.

Which county has the lowest annual precipitation?

Caddo Parish, with 41.96 inches in 2017.

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.