Mosquito season in Ohio County, WV: when it starts and ends
Mosquito months in Ohio County
In a normal year mosquito season in Ohio County, WV starts around April 10 and ends around October 27, about 29 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Ohio County, and when
- Start tipping out standing water weekly by March 27.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after October 27.
- No West Nile cases since 2016, so bites in Ohio County are a nuisance; check window screens.
Ohio County against the rest of WV
Ohio County has the 24th longest season of 55 WV counties, at 200 days against 224 in Cabell County and 162 in Randolph County. Its mean temperature is 52.3°F.
- Gilmer County: April 11 to October 29 (201 days, 0 WNV)
- Morgan County: April 10 to October 26 (200 days, 0 WNV)
- McDowell County: April 10 to October 26 (199 days, 0 WNV)
- Brooke County: April 12 to October 26 (197 days, 0 WNV)
West Nile in Ohio County
CDC ArboNET lists no human West Nile cases for Ohio County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 5 of those years.
More: how the dates are worked out · when mosquitoes go away for the winter.