Mosquito season in Mecklenburg County, NC: when it starts and ends
Mosquito months in Mecklenburg County
In a normal year mosquito season in Mecklenburg County, NC starts around March 17 and ends around November 14, about 35 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Mecklenburg County, and when
- Start tipping out standing water weekly by March 3.
- Book any yard treatment for mid March, ahead of the July peak.
- Repellent can go away after November 14.
- 18 West Nile cases since 2016: you should wear EPA-registered repellent at dusk June to September, and check NC spray notices.
Mecklenburg County against the rest of NC
Mecklenburg County has the 45th longest season of 100 NC counties, at 242 days against 292 in Carteret County and 176 in Ashe County. Its mean temperature is 61.4°F.
- Moore County: March 17 to November 15 (243 days, 1 WNV)
- Richmond County: March 18 to November 16 (243 days, 0 WNV)
- Orange County: March 19 to November 14 (240 days, 1 WNV)
- Nash County: March 21 to November 16 (240 days, 0 WNV)
West Nile in Mecklenburg County
From 1999 to 2025, CDC ArboNET counted 29 human West Nile cases in Mecklenburg County (27 neuroinvasive) across 16 years. The worst was 2024 with 5; the latest was 2025.
Background: reading the West Nile counts; how the dates are worked out.