Mosquito season in Lewis County, WV: when it starts and ends
Mosquito months in Lewis County
In a normal year mosquito season in Lewis County, WV starts around April 15 and ends around October 28, about 28 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Lewis County, and when
- Start tipping out standing water weekly by April 1.
- Book any yard treatment for mid April, ahead of the July peak.
- Repellent can go away after October 28.
- No West Nile cases since 2016, so bites in Lewis County are a nuisance; check window screens.
Lewis County against the rest of WV
Lewis County has the 29th longest season of 55 WV counties, at 196 days against 224 in Cabell County and 162 in Randolph County. Its mean temperature is 53.1°F.
- Hampshire County: April 12 to October 25 (196 days, 1 WNV)
- Taylor County: April 12 to October 25 (196 days, 0 WNV)
- Doddridge County: April 15 to October 27 (195 days, 0 WNV)
- Grant County: April 13 to October 23 (194 days, 0 WNV)
West Nile in Lewis County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Lewis County (0 neuroinvasive) across 1 year. The worst was 2003 with 1; the latest was 2003.
Background: when the season starts across the US; how the dates are worked out.