Mosquito season in Williamsburg city, VA: when it starts and ends
Mosquito months in Williamsburg city
In a normal year mosquito season in Williamsburg city, VA starts around March 20 and ends around November 19, about 35 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Williamsburg city, and when
- Start tipping out standing water weekly by March 6.
- Book any yard treatment for mid March, ahead of the July peak.
- Repellent can go away after November 19.
- No West Nile cases since 2016, so bites in Williamsburg city are a nuisance; check window screens.
Williamsburg city against the rest of VA
Williamsburg city has the 12th longest season of 133 VA counties, at 244 days against 257 in Norfolk city and 172 in Highland County. Its mean temperature is 59.7°F.
- James City County: March 20 to November 19 (244 days, 0 WNV)
- Newport News city: March 20 to November 19 (244 days, 3 WNV)
- Charles City County: March 18 to November 15 (242 days, 0 WNV)
- Greensville County: March 20 to November 17 (242 days, 0 WNV)
West Nile in Williamsburg city
CDC ArboNET lists no human West Nile cases for Williamsburg city from 1999 to 2025.
More: how the dates are worked out · when mosquitoes go away for the winter.