Louisiana weather by month

Check out Louisiana weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum daytime temperature °F
Hours of sunshine (daily)
Days with some rainfall

More about Louisiana

Louisiana by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Louisiana (New Orleans) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Louisiana destinations

Below are average maximum temperatures at popular destinations in Louisiana for next month - May. Select a destination to see the climate guide for all months of the year.

All Louisiana destinations

Metric (°C)  |  Imperial (°F)

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Louisiana climate overview

The marshy delta of the Mississippi River marks the south-eastern tip of Louisiana in the southern United States. The State is known for its jazz and laid back atmosphere, attractive river valleys and swamps of alligators and birdlife.

Its strategic position on the Gulf of Mexico led to it being colonised by the French in the 17th century, but since then several nationalities have ruled or influenced it, leading to a rich heritage that shapes the culture today. The French Canadians who settled here after being deported from the north by the British were originally called Arcadian, but their descendants' name has been shortened to Cajun.

Louisiana's landscape is typically low coastal marshes and river floodplain. The eroding coastline does not have a beach, its marshy delta filled by sediment carried by the river.

A sub-tropical climate with rainfall in all months and the floodplain of the large Mississippi-Missouri River system allows lush vegetation to grow. The climate also feeds fertile soils that supported sugarcane and cotton plantations in the past, but soybeans and beef cattle are more significant today. Oil is also a major industry for the State.

Louisiana is hot in summer, even overnight, but some relief comes from frequent afternoon thunderstorms. However, it is the humidity that characterises the climate, and only in winter does the state completely escape the moisture, when it experiences cool to comfortable temperatures.

There is a threat of hurricanes striking in the summer months, especially from August to October. Since much of the delta coastline is low lying it is particularly vulnerable to storm surges, as the city of New Orleans discovered in August 2005 during Hurricane Katrina.

More about the USA

Compare Louisiana with the USA

Below the Louisiana chart shows average maximum daytime temperature for Louisiana, USA (New Orleans) and the USA (Washington).

Maximum daytime temperature (°F)

Louisiana, USA (New Orleans)
USA (Washington)
61
41
64
45
72
55
79
66
84
75
90
84
91
88
90
86
86
79
81
68
72
57
64
46
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

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