Mosquito season in Caldwell Parish, LA: when it starts and ends
Mosquito months in Caldwell Parish
In a normal year mosquito season in Caldwell Parish, LA starts around February 20 and ends around December 4, about 41 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Caldwell Parish, and when
- Start tipping out standing water weekly by February 6.
- Book any yard treatment for mid February, ahead of the July peak.
- Repellent can go away after December 4.
- No West Nile cases since 2016, so bites in Caldwell Parish are a nuisance; check window screens.
Caldwell Parish against the rest of LA
Caldwell Parish has the 42nd longest season of 64 LA counties, at 287 days against 358 in Orleans Parish and 247 in Claiborne Parish. Its mean temperature is 65.5°F.
- East Carroll Parish: February 21 to December 6 (288 days, 0 WNV)
- West Carroll Parish: February 21 to December 6 (288 days, 1 WNV)
- Catahoula Parish: February 22 to December 5 (286 days, 1 WNV)
- Concordia Parish: February 22 to December 5 (286 days, 1 WNV)
West Nile in Caldwell Parish
From 1999 to 2025, CDC ArboNET counted 6 human West Nile cases in Caldwell Parish (5 neuroinvasive) across 4 years. The worst was 2013 with 3; the latest was 2013.
See how the dates are worked out, and when mosquitoes go away for the winter.