Mosquito season in Salem city, VA: when it starts and ends

Mosquito months in Salem city

In a normal year mosquito season in Salem city, VA starts around March 24 and ends around November 7, 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 Salem city, and when

• Start tipping out standing water weekly by March 10.
• Book any yard treatment for late March, ahead of the July peak.
• Repellent can go away after November 7.
• No West Nile cases since 2016, so bites in Salem city are a nuisance; check window screens.

Salem city against the rest of VA

Salem city has the 39th longest season of 133 VA counties, at 228 days against 257 in Norfolk city and 172 in Highland County. Its mean temperature is 57.1°F.

• King William County: March 27 to November 11 (229 days, 0 WNV)
• New Kent County: March 27 to November 11 (229 days, 0 WNV)
• Lunenburg County: March 26 to November 9 (228 days, 0 WNV)
• Prince George County: March 29 to November 12 (228 days, 0 WNV)

West Nile in Salem city

CDC ArboNET lists no human West Nile cases for Salem city from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 2 of those years.

See how the dates are worked out, and when mosquitoes go away for the winter.