Mosquito season in Chautauqua County, KS: when it starts and ends
Mosquito months in Chautauqua County
In a normal year mosquito season in Chautauqua County, KS starts around March 29 and ends around November 4, about 31 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Chautauqua County, and when
- Start tipping out standing water weekly by March 15.
- Book any yard treatment for late March, ahead of the July peak.
- Repellent can go away after November 4.
- No West Nile cases since 2016, so bites in Chautauqua County are a nuisance; check window screens.
Chautauqua County against the rest of KS
Chautauqua County has the 6th longest season of 105 KS counties, at 220 days against 227 in Cherokee County and 178 in Thomas County. Its mean temperature is 57.2°F.
- Bourbon County: March 28 to November 4 (221 days, 0 WNV)
- Neosho County: March 29 to November 5 (221 days, 0 WNV)
- Sedgwick County: March 30 to November 5 (220 days, 28 WNV)
- Allen County: March 30 to November 4 (219 days, 0 WNV)
West Nile in Chautauqua County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Chautauqua County (0 neuroinvasive) across 1 year. The worst was 2013 with 1; the latest was 2013.
More: how the dates are worked out · when mosquitoes go away for the winter.