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

Mosquito months in Amelia County

In a normal year mosquito season in Amelia County, VA starts around March 26 and ends around November 12, about 33 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 Amelia County, and when

• Start tipping out standing water weekly by March 12.
• Book any yard treatment for late March, ahead of the July peak.
• Repellent can go away after November 12.
• No West Nile cases since 2016, so bites in Amelia County are a nuisance; check window screens.

Amelia County against the rest of VA

Amelia County has the 33rd longest season of 133 VA counties, at 231 days against 257 in Norfolk city and 172 in Highland County. Its mean temperature is 58.4°F.

• Southampton County: March 25 to November 12 (232 days, 0 WNV)
• Franklin city: March 25 to November 12 (232 days, 0 WNV)
• Roanoke city: March 24 to November 8 (229 days, 6 WNV)
• Alexandria city: March 26 to November 10 (229 days, 8 WNV)

West Nile in Amelia County

CDC ArboNET lists no human West Nile cases for Amelia 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.