Mosquito season in Falls Church city, VA: when it starts and ends
Mosquito months in Falls Church city
In a normal year mosquito season in Falls Church city, VA starts around April 2 and ends around November 4, about 31 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Falls Church city, and when
- Start tipping out standing water weekly by March 19.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after November 4.
- No West Nile cases since 2016, so bites in Falls Church city are a nuisance; check window screens.
Falls Church city against the rest of VA
Falls Church city has the 69th longest season of 133 VA counties, at 216 days against 257 in Norfolk city and 172 in Highland County. Its mean temperature is 55.6°F.
- Botetourt County: March 30 to November 2 (217 days, 0 WNV)
- Campbell County: April 1 to November 3 (216 days, 1 WNV)
- Goochland County: April 3 to November 5 (216 days, 0 WNV)
- Powhatan County: April 3 to November 5 (216 days, 1 WNV)
West Nile in Falls Church city
CDC ArboNET lists no human West Nile cases for Falls Church city from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 8 of those years.
See how the dates are worked out, and when mosquitoes go away for the winter.