Mosquito season in Gasconade County, MO: when it starts and ends
Mosquito months in Gasconade County
In a normal year mosquito season in Gasconade County, MO starts around April 14 and ends around October 24, about 28 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Gasconade County, and when
- Start tipping out standing water weekly by March 31.
- Book any yard treatment for mid April, ahead of the July peak.
- Repellent can go away after October 24.
- No West Nile cases since 2016, so bites in Gasconade County are a nuisance; check window screens.
Gasconade County against the rest of MO
Gasconade County has the 109th longest season of 115 MO counties, at 193 days against 242 in Pemiscot County and 187 in Crawford County. Its mean temperature is 53.8°F.
- Schuyler County: April 13 to October 23 (194 days, 0 WNV)
- Atchison County: April 11 to October 22 (193 days, 0 WNV)
- Putnam County: April 13 to October 22 (192 days, 0 WNV)
- Scotland County: April 13 to October 22 (192 days, 0 WNV)
West Nile in Gasconade County
CDC ArboNET lists no human West Nile cases for Gasconade County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 6 of those years.
See how the dates are worked out, and when the season starts across the US.