Mosquito season in Scotland County, MO: when it starts and ends
Mosquito months in Scotland County
In a normal year mosquito season in Scotland County, MO starts around April 13 and ends around October 22, about 27 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Scotland County, and when
- Start tipping out standing water weekly by March 30.
- Book any yard treatment for mid April, ahead of the July peak.
- Repellent can go away after October 22.
- No West Nile cases since 2016, so bites in Scotland County are a nuisance; check window screens.
Scotland County against the rest of MO
Scotland County has the 111th longest season of 115 MO counties, at 192 days against 242 in Pemiscot County and 187 in Crawford County. Its mean temperature is 50.6°F.
- Gasconade County: April 14 to October 24 (193 days, 0 WNV)
- Putnam County: April 13 to October 22 (192 days, 0 WNV)
- Mercer County: April 14 to October 23 (192 days, 0 WNV)
- Sullivan County: April 14 to October 22 (191 days, 0 WNV)
West Nile in Scotland County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Scotland County (1 neuroinvasive) across 1 year. The worst was 2007 with 1; the latest was 2007.
Background: when mosquitoes go away for the winter; how the dates are worked out.