Mosquito season in Wilson County, KS: when it starts and ends
Mosquito months in Wilson County
In a normal year mosquito season in Wilson County, KS starts around April 1 and ends around November 3, about 31 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Wilson County, and when
- Start tipping out standing water weekly by March 18.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after November 3.
- No West Nile cases since 2016, so bites in Wilson County are a nuisance; check window screens.
Wilson County against the rest of KS
Wilson County has the 12th longest season of 105 KS counties, at 216 days against 227 in Cherokee County and 178 in Thomas County. Its mean temperature is 57°F.
- Marion County: March 30 to November 3 (218 days, 0 WNV)
- Woodson County: April 1 to November 4 (217 days, 1 WNV)
- Comanche County: April 3 to November 5 (216 days, 0 WNV)
- Sumner County: April 3 to November 5 (216 days, 1 WNV)
West Nile in Wilson County
CDC ArboNET lists no human West Nile cases for Wilson County 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 mosquitoes go away for the winter.