Mosquito season in Gilmer County, WV: when it starts and ends
Mosquito months in Gilmer County
In a normal year mosquito season in Gilmer County, WV starts around April 11 and ends around October 29, about 29 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Gilmer County, and when
- Start tipping out standing water weekly by March 28.
- Book any yard treatment for mid April, ahead of the July peak.
- Repellent can go away after October 29.
- No West Nile cases since 2016, so bites in Gilmer County are a nuisance; check window screens.
Gilmer County against the rest of WV
Gilmer County has the 22nd longest season of 55 WV counties, at 201 days against 224 in Cabell County and 162 in Randolph County. Its mean temperature is 53.7°F.
- Harrison County: April 10 to October 28 (201 days, 1 WNV)
- Pleasants County: April 10 to October 28 (201 days, 0 WNV)
- Morgan County: April 10 to October 26 (200 days, 0 WNV)
- Ohio County: April 10 to October 27 (200 days, 0 WNV)
West Nile in Gilmer County
CDC ArboNET lists no human West Nile cases for Gilmer County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 2 of those years.
See how the dates are worked out, and when the season starts across the US.