Mosquito season in Gloucester County, VA: when it starts and ends
Mosquito months in Gloucester County
In a normal year mosquito season in Gloucester County, VA starts around March 26 and ends around November 14, about 33 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Gloucester 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 14.
- No West Nile cases since 2016, so bites in Gloucester County are a nuisance; check window screens.
Gloucester County against the rest of VA
Gloucester County has the 27th longest season of 133 VA counties, at 234 days against 257 in Norfolk city and 172 in Highland County. Its mean temperature is 58.1°F.
- Lancaster County: March 24 to November 13 (234 days, 0 WNV)
- Northumberland County: March 25 to November 14 (234 days, 1 WNV)
- Surry County: March 26 to November 14 (233 days, 0 WNV)
- Mathews County: March 27 to November 15 (233 days, 1 WNV)
West Nile in Gloucester County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Gloucester County (1 neuroinvasive) across 1 year. The worst was 2003 with 1; the latest was 2003.
More: how the dates are worked out · when mosquitoes go away for the winter.