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

Mosquito months in West Carroll Parish

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

1. Jan
2. Feb
3. Mar
4. Apr
5. May
6. Jun
7. Jul
8. Aug
9. Sep
10. Oct
11. Nov
12. Dec

What to do in West 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.
• 1 West Nile case since 2016 (last 2023): you should use repellent at dusk May to September, more so if over 60.

West Carroll Parish against the rest of LA

West Carroll Parish has the 41st longest season of 64 LA counties, at 288 days against 358 in Orleans Parish and 247 in Claiborne Parish. Its mean temperature is 65°F.

• Rapides Parish: February 16 to December 7 (294 days, 29 WNV)
• East Carroll Parish: February 21 to December 6 (288 days, 0 WNV)
• Caldwell Parish: February 20 to December 4 (287 days, 0 WNV)
• Catahoula Parish: February 22 to December 5 (286 days, 1 WNV)

West Nile in West Carroll Parish

From 1999 to 2025, CDC ArboNET counted 9 human West Nile cases in West Carroll Parish (6 neuroinvasive) across 4 years. The worst was 2004 with 3; the latest was 2023.

See how the dates are worked out, and when the season starts across the US.