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

Mosquito months in Pulaski County

In a normal year mosquito season in Pulaski County, VA starts around April 9 and ends around October 27, 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 Pulaski 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 27.
• No West Nile cases since 2016, so bites in Pulaski County are a nuisance; check window screens.

Pulaski County against the rest of VA

Pulaski County has the 106th longest season of 133 VA counties, at 201 days against 257 in Norfolk city and 172 in Highland County. Its mean temperature is 52.8°F.

• Smyth County: April 9 to October 28 (202 days, 0 WNV)
• Lee County: April 10 to October 29 (202 days, 0 WNV)
• Clarke County: April 12 to October 29 (200 days, 0 WNV)
• Louisa County: April 12 to October 29 (200 days, 1 WNV)

West Nile in Pulaski County

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

Background: when mosquitoes go away for the winter; how the dates are worked out.