Mosquito season in Vernon Parish, LA: when it starts and ends
Mosquito months in Vernon Parish
In a normal year mosquito season in Vernon Parish, LA starts around February 28 and ends around November 23, about 38 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Vernon Parish, and when
- Start tipping out standing water weekly by February 14.
- Book any yard treatment for late February, ahead of the July peak.
- Repellent can go away after November 23.
- No West Nile cases since 2016, so bites in Vernon Parish are a nuisance; check window screens.
Vernon Parish against the rest of LA
Vernon Parish has the 59th longest season of 64 LA counties, at 268 days against 358 in Orleans Parish and 247 in Claiborne Parish. Its mean temperature is 66.6°F.
- Morehouse Parish: March 2 to November 26 (269 days, 6 WNV)
- Tensas Parish: February 27 to November 22 (268 days, 0 WNV)
- Winn Parish: February 28 to November 23 (268 days, 0 WNV)
- Bienville Parish: March 4 to November 23 (264 days, 2 WNV)
West Nile in Vernon Parish
From 1999 to 2025, CDC ArboNET counted 6 human West Nile cases in Vernon Parish (3 neuroinvasive) across 5 years. The worst was 2005 with 2; the latest was 2012.
See how the dates are worked out, and when mosquitoes go away for the winter.