Mosquito season in Buncombe County, NC: when it starts and ends
Mosquito months in Buncombe County
In a normal year mosquito season in Buncombe County, NC starts around March 26 and ends around November 8, about 32 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Buncombe County, and when
- Start tipping out standing water weekly by March 12.
- Book any yard treatment for late March, ahead of the July peak.
- Repellent can go away after November 8.
- 4 West Nile cases since 2016 (last 2025): you should use repellent at dusk June to August, more so if over 60.
Buncombe County against the rest of NC
Buncombe County has the 67th longest season of 100 NC counties, at 227 days against 292 in Carteret County and 176 in Ashe County. Its mean temperature is 56.9°F.
- Hertford County: March 26 to November 10 (229 days, 1 WNV)
- Rowan County: March 25 to November 8 (228 days, 1 WNV)
- Stokes County: March 27 to November 8 (226 days, 0 WNV)
- Wilkes County: March 27 to November 8 (226 days, 1 WNV)
West Nile in Buncombe County
From 1999 to 2025, CDC ArboNET counted 4 human West Nile cases in Buncombe County (4 neuroinvasive) across 4 years. The worst was 2025 with 1; the latest was 2025.
See how the dates are worked out, and reading the West Nile counts.