Mosquito season in Stafford County, VA: when it starts and ends

Mosquito months in Stafford County

In a normal year mosquito season in Stafford County, VA starts around March 27 and ends around November 8, about 32 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 Stafford County, and when

• Start tipping out standing water weekly by March 13.
• Book any yard treatment for late March, ahead of the July peak.
• Repellent can go away after November 8.
• No West Nile cases since 2016, so bites in Stafford County are a nuisance; check window screens.

Stafford County against the rest of VA

Stafford County has the 44th longest season of 133 VA counties, at 226 days against 257 in Norfolk city and 172 in Highland County. Its mean temperature is 57.2°F.

• Brunswick County: March 26 to November 7 (226 days, 0 WNV)
• Greene County: March 26 to November 7 (226 days, 2 WNV)
• Essex County: March 29 to November 10 (226 days, 0 WNV)
• Richmond County: March 29 to November 10 (226 days, 0 WNV)

West Nile in Stafford County

CDC ArboNET lists no human West Nile cases for Stafford County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 3 of those years.

Background: when mosquitoes go away for the winter; how the dates are worked out.