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

Mosquito months in East Carroll Parish

In a normal year mosquito season in East Carroll Parish, LA starts around February 21 and ends around December 6, about 41 weeks.

What to do in East Carroll Parish, and when

Start tipping out standing water weekly by February 7.
Book any yard treatment for late February, ahead of the July peak.
Repellent can go away after December 6.
No West Nile cases since 2016, so bites in East Carroll Parish are a nuisance; check window screens.

East Carroll Parish against the rest of LA

East Carroll Parish has the 40th longest season of 64 LA counties, at 288 days against 358 in Orleans Parish and 247 in Claiborne Parish. Its mean temperature is 64.9°F.

St. Tammany Parish: February 14 to December 6 (295 days, 38 WNV)
Rapides Parish: February 16 to December 7 (294 days, 29 WNV)
West Carroll Parish: February 21 to December 6 (288 days, 1 WNV)
Caldwell Parish: February 20 to December 4 (287 days, 0 WNV)

West Nile in East Carroll Parish

CDC ArboNET lists no human West Nile cases for East Carroll Parish from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 3 of those years.

More: how the dates are worked out · when the season starts across the US.