Mosquito season in Nicholas County, WV: when it starts and ends
Mosquito months in Nicholas County
In a normal year mosquito season in Nicholas County, WV starts around April 25 and ends around October 18, about 25 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Nicholas County, and when
- Start tipping out standing water weekly by April 11.
- Book any yard treatment for late April, ahead of the July peak.
- Repellent can go away after October 18.
- No West Nile cases since 2016, so bites in Nicholas County are a nuisance; check window screens.
Nicholas County against the rest of WV
Nicholas County has the 52nd longest season of 55 WV counties, at 176 days against 224 in Cabell County and 162 in Randolph County. Its mean temperature is 50.8°F.
- Barbour County: April 24 to October 22 (181 days, 0 WNV)
- Raleigh County: April 25 to October 20 (178 days, 0 WNV)
- Pocahontas County: April 30 to October 14 (167 days, 0 WNV)
- Tucker County: April 30 to October 11 (164 days, 0 WNV)
West Nile in Nicholas County
CDC ArboNET lists no human West Nile cases for Nicholas County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 7 of those years.
See how the dates are worked out, and when mosquitoes go away for the winter.