Mosquito season in Wake County, NC: when it starts and ends

Mosquito months in Wake County

In a normal year mosquito season in Wake County, NC starts around March 14 and ends around November 21, about 36 weeks.

1. Jan
2. Feb
3. Mar
4. Apr
5. May
6. Jun
7. Jul
8. Aug
9. Sep
10. Oct
11. Nov
12. Dec

What to do in Wake County, and when

• Start tipping out standing water weekly by February 28.
• Book any yard treatment for mid March, ahead of the July peak.
• Repellent can go away after November 21.
• 10 West Nile cases since 2016: you should wear EPA-registered repellent at dusk June to September, and check NC spray notices.

Wake County against the rest of NC

Wake County has the 23rd longest season of 100 NC counties, at 252 days against 292 in Carteret County and 176 in Ashe County. Its mean temperature is 60.9°F.

• Anson County: March 10 to November 22 (257 days, 0 WNV)
• Pitt County: March 13 to November 22 (254 days, 2 WNV)
• Gaston County: March 15 to November 22 (252 days, 1 WNV)
• Cumberland County: March 16 to November 23 (252 days, 5 WNV)

West Nile in Wake County

From 1999 to 2025, CDC ArboNET counted 14 human West Nile cases in Wake County (12 neuroinvasive) across 7 years. The worst was 2024 with 3; the latest was 2024.

See how the dates are worked out, and reading the West Nile counts.