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

Mosquito months in Buchanan County

In a normal year mosquito season in Buchanan County, VA starts around April 9 and ends around October 29, about 29 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 Buchanan County, and when

• Start tipping out standing water weekly by March 26.
• Book any yard treatment for early April, ahead of the July peak.
• Repellent can go away after October 29.
• No West Nile cases since 2016, so bites in Buchanan County are a nuisance; check window screens.

Buchanan County against the rest of VA

Buchanan County has the 101st longest season of 133 VA counties, at 203 days against 257 in Norfolk city and 172 in Highland County. Its mean temperature is 53.6°F.

• Frederick County: April 7 to October 29 (205 days, 1 WNV)
• Fluvanna County: April 9 to October 31 (205 days, 0 WNV)
• Rockingham County: April 9 to October 29 (203 days, 8 WNV)
• Harrisonburg city: April 9 to October 29 (203 days, 2 WNV)

West Nile in Buchanan County

CDC ArboNET lists no human West Nile cases for Buchanan County from 1999 to 2025.

More: how the dates are worked out · when the season starts across the US.