Mosquito season in Jackson County, WV: when it starts and ends
Mosquito months in Jackson County
In a normal year mosquito season in Jackson County, WV starts around April 10 and ends around October 31, about 29 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Jackson 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 31.
- No West Nile cases since 2016, so bites in Jackson County are a nuisance; check window screens.
Jackson County against the rest of WV
Jackson County has the 16th longest season of 55 WV counties, at 204 days against 224 in Cabell County and 162 in Randolph County. Its mean temperature is 54.4°F.
- Braxton County: April 8 to October 31 (206 days, 0 WNV)
- Lincoln County: April 9 to October 30 (204 days, 0 WNV)
- Monongalia County: April 10 to October 30 (203 days, 1 WNV)
- Marion County: April 8 to October 26 (202 days, 0 WNV)
West Nile in Jackson County
CDC ArboNET lists no human West Nile cases for Jackson County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 8 of those years.
Background: when mosquitoes go away for the winter; how the dates are worked out.