Mosquito season in Avoyelles Parish, LA: when it starts and ends

Mosquito months in Avoyelles Parish

In a normal year mosquito season in Avoyelles Parish, LA starts around February 7 and ends around January 2, about 47 weeks.

What to do in Avoyelles Parish, and when

Start tipping out standing water weekly by January 24.
Book any yard treatment for early February, ahead of the July peak.
Repellent can go away after January 2.
1 West Nile case since 2016 (last 2024): you should use repellent at dusk May to September, more so if over 60.

Avoyelles Parish against the rest of LA

Avoyelles Parish has the 23rd longest season of 64 LA counties, at 329 days against 358 in Orleans Parish and 247 in Claiborne Parish. Its mean temperature is 66.8°F.

St. Martin Parish: January 29 to December 24 (329 days, 2 WNV)
Acadia Parish: January 31 to December 26 (329 days, 1 WNV)
Natchitoches Parish: February 8 to January 3 (329 days, 2 WNV)
St. Bernard Parish: February 2 to December 25 (326 days, 0 WNV)

West Nile in Avoyelles Parish

From 1999 to 2025, CDC ArboNET counted 9 human West Nile cases in Avoyelles Parish (8 neuroinvasive) across 7 years. The worst was 2012 with 2; the latest was 2024.

See how the dates are worked out, and when mosquitoes go away for the winter.