Mosquito season in Graham County, NC: when it starts and ends
Mosquito months in Graham County
In a normal year mosquito season in Graham County, NC starts around March 31 and ends around November 3, about 31 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Graham County, and when
- Start tipping out standing water weekly by March 17.
- Book any yard treatment for late March, ahead of the July peak.
- Repellent can go away after November 3.
- No West Nile cases since 2016, so bites in Graham County are a nuisance; check window screens.
Graham County against the rest of NC
Graham County has the 78th longest season of 100 NC counties, at 217 days against 292 in Carteret County and 176 in Ashe County. Its mean temperature is 55.7°F.
- Rockingham County: March 30 to November 6 (221 days, 0 WNV)
- Davidson County: March 30 to November 5 (220 days, 1 WNV)
- Vance County: April 1 to November 4 (217 days, 0 WNV)
- Cleveland County: March 31 to November 2 (216 days, 1 WNV)
West Nile in Graham County
CDC ArboNET lists no human West Nile cases for Graham County from 1999 to 2025.
Background: when the season starts across the US; how the dates are worked out.