Mosquito season in Culpeper County, VA: when it starts and ends
Mosquito months in Culpeper County
In a normal year mosquito season in Culpeper County, VA starts around April 5 and ends around November 1, about 30 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Culpeper County, and when
- Start tipping out standing water weekly by March 22.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after November 1.
- No West Nile cases since 2016, so bites in Culpeper County are a nuisance; check window screens.
Culpeper County against the rest of VA
Culpeper County has the 83rd longest season of 133 VA counties, at 210 days against 257 in Norfolk city and 172 in Highland County. Its mean temperature is 54.7°F.
- Warren County: April 4 to November 1 (211 days, 3 WNV)
- Loudoun County: April 4 to November 1 (210 days, 5 WNV)
- Fairfax County: April 5 to November 1 (210 days, 31 WNV)
- Rappahannock County: April 5 to November 1 (210 days, 1 WNV)
West Nile in Culpeper County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Culpeper County (1 neuroinvasive) across 1 year. The worst was 2003 with 1; the latest was 2003.
See how the dates are worked out, and when the season starts across the US.