Mosquito season in Wayne County, MO: when it starts and ends
Mosquito months in Wayne County
In a normal year mosquito season in Wayne County, MO starts around March 24 and ends around November 6, about 32 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Wayne County, and when
- Start tipping out standing water weekly by March 10.
- Book any yard treatment for late March, ahead of the July peak.
- Repellent can go away after November 6.
- No West Nile cases since 2016, so bites in Wayne County are a nuisance; check window screens.
Wayne County against the rest of MO
Wayne County has the 9th longest season of 115 MO counties, at 226 days against 242 in Pemiscot County and 187 in Crawford County. Its mean temperature is 57.1°F.
- St. Louis city: March 24 to November 8 (229 days, 39 WNV)
- Taney County: March 26 to November 9 (228 days, 0 WNV)
- Camden County: March 26 to November 6 (226 days, 0 WNV)
- Cedar County: March 27 to November 8 (226 days, 0 WNV)
West Nile in Wayne County
CDC ArboNET lists no human West Nile cases for Wayne County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 2 of those years.
See how the dates are worked out, and when mosquitoes go away for the winter.