Mosquito season in Westmoreland County, VA: when it starts and ends
Mosquito months in Westmoreland County
In a normal year mosquito season in Westmoreland County, VA starts around March 29 and ends around November 10, about 32 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Westmoreland County, and when
- Start tipping out standing water weekly by March 15.
- Book any yard treatment for late March, ahead of the July peak.
- Repellent can go away after November 10.
- 1 West Nile case since 2016 (last 2023): you should use repellent at dusk June to September, more so if over 60.
Westmoreland County against the rest of VA
Westmoreland County has the 47th longest season of 133 VA counties, at 226 days against 257 in Norfolk city and 172 in Highland County. Its mean temperature is 58.3°F.
- Essex County: March 29 to November 10 (226 days, 0 WNV)
- Richmond County: March 29 to November 10 (226 days, 0 WNV)
- Fredericksburg city: March 28 to November 7 (224 days, 1 WNV)
- Bedford County: March 29 to November 8 (224 days, 1 WNV)
West Nile in Westmoreland County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Westmoreland County (1 neuroinvasive) across 1 year. The worst was 2023 with 1; the latest was 2023.
See how the dates are worked out, and when mosquitoes go away for the winter.