Mosquito season in McDowell County, NC: when it starts and ends
Mosquito months in McDowell County
In a normal year mosquito season in McDowell County, NC starts around March 24 and ends around November 10, about 33 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in McDowell County, and when
- Start tipping out standing water weekly by March 10.
- Book any yard treatment for late March, ahead of the July peak.
- Repellent can go away after November 10.
- No West Nile cases since 2016, so bites in McDowell County are a nuisance; check window screens.
McDowell County against the rest of NC
McDowell County has the 61st longest season of 100 NC counties, at 231 days against 292 in Carteret County and 176 in Ashe County. Its mean temperature is 57.2°F.
- Halifax County: March 26 to November 13 (232 days, 0 WNV)
- Northampton County: March 26 to November 13 (232 days, 0 WNV)
- Randolph County: March 24 to November 10 (231 days, 0 WNV)
- Polk County: March 25 to November 10 (230 days, 0 WNV)
West Nile in McDowell County
CDC ArboNET lists no human West Nile cases for McDowell County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 2 of those years.
More: how the dates are worked out · when mosquitoes go away for the winter.