Mosquito season in Clay County, NC: when it starts and ends
Mosquito months in Clay County
In a normal year mosquito season in Clay County, NC starts around April 9 and ends around October 30, about 29 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Clay County, and when
- Start tipping out standing water weekly by March 26.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after October 30.
- No West Nile cases since 2016, so bites in Clay County are a nuisance; check window screens.
Clay County against the rest of NC
Clay County has the 93rd longest season of 100 NC counties, at 204 days against 292 in Carteret County and 176 in Ashe County. Its mean temperature is 56°F.
- Mitchell County: April 6 to October 27 (204 days, 0 WNV)
- Cherokee County: April 9 to October 30 (204 days, 0 WNV)
- Alleghany County: April 10 to October 25 (198 days, 0 WNV)
- Madison County: April 14 to October 26 (195 days, 0 WNV)
West Nile in Clay County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Clay County (1 neuroinvasive) across 1 year. The worst was 2003 with 1; the latest was 2003.
More: how the dates are worked out · when mosquitoes go away for the winter.