Louisiana climate

World Climates covers 4 places in Louisiana. By annual mean temperature, the warmest is New Orleans (21 °C70 °F) and the coolest is Shreveport (19 °C66 °F). The wettest is Lafayette with 1,583 mm62 in of precipitation per year, the driest Shreveport with 1,275 mm50 in.

The most common climate types (Köppen classification computed from these averages) are humid subtropical (Cfa, 4 places).

The highest monthly average high is in Shreveport (36 °C96 °F in August); the lowest monthly average low is in Shreveport (2 °C35 °F in January).

Across the places in Louisiana, the months that most often rank as the most comfortable are March, April and November (2, 1 and 4 of 4 places respectively).

Temperature and rainfall across Louisiana

Annual mean temperatures in Louisiana range from 19 °C66 °F to 21 °C70 °F. The typical place (the median of all 4) has a year average of 20 °C68 °F. Annual precipitation ranges from 1,275 mm50 in to 1,583 mm62 in. The median place receives about 1,547 mm61 in in an average year.

In 0 places of 4, the coldest month has an average low below 0 °C (32 °F). In 4 places, the warmest month has an average high above 30 °C (86 °F). No place here gets less than 250 mm (10 in) of precipitation a year. None gets more than 2,000 mm (79 in) a year.

Averaged over all 4 places, August is the warmest month, with a mean of 28 °C83 °F. January is the coldest, with 10 °C50 °F. The wettest month on average is June (156 mm6.2 in). The driest is November (90 mm3.6 in). Single places can differ a lot from this average, so check the page of each city.

The table below lists the places sorted by population. The largest ones covered here are New Orleans, Baton Rouge and Shreveport. Each city page has a chart and a table for every month. It also shows the best time to visit and what to pack. The figures are 25-year averages for 2001–2025 from NASA POWER. They describe grid cells of roughly 50–70 km, not single weather stations.

Climate of each place in Louisiana

New Orleans has a humid subtropical climate (Köppen Cfa). Its year average is 21 °C70 °F. The warmest month is August, with an average high of 31 °C87 °F. The coldest is January, with an average low of 8 °C47 °F. About 1,534 mm60 in of precipitation falls in a year. August is the wettest month and November the driest. By our comfort score, the best months to visit are November.

Baton Rouge has a humid subtropical climate (Köppen Cfa). Its year average is 20 °C68 °F. The warmest month is July, with an average high of 32 °C90 °F. The coldest is January, with an average low of 4 °C39 °F. About 1,561 mm61 in of precipitation falls in a year. August is the wettest month and November the driest. By our comfort score, the best months to visit are March and November.

Shreveport has a humid subtropical climate (Köppen Cfa). Its year average is 19 °C66 °F. The warmest month is August, with an average high of 36 °C96 °F. The coldest is January, with an average low of 2 °C35 °F. About 1,275 mm50 in of precipitation falls in a year. March is the wettest month and August the driest. By our comfort score, the best months to visit are April and May and October and November.

Lafayette has a humid subtropical climate (Köppen Cfa). Its year average is 20 °C69 °F. The warmest month is August, with an average high of 31 °C88 °F. The coldest is January, with an average low of 6 °C43 °F. About 1,583 mm62 in of precipitation falls in a year. August is the wettest month and March the driest. By our comfort score, the best months to visit are March and November.

Frequently asked questions

Which is the warmest place in Louisiana?

By annual mean temperature, the warmest place in Louisiana is New Orleans at 21 °C70 °F. The coolest is Shreveport at 19 °C66 °F.

Where does it rain the most in Louisiana?

Lafayette gets the most precipitation, 1,583 mm62 in in an average year. The driest place is Shreveport with 1,275 mm50 in.

How many places in Louisiana does this site cover?

World Climates has climate data for 4 places in Louisiana. Each one has a page with monthly averages for temperature, rainfall, humidity and daylight.

When is the best time to visit Louisiana?

It depends on the place. Across Louisiana, the months that most often rank as the most comfortable are March, April and November. Check the page of each city for its own best months.