Mosquito season in Rappahannock County, VA: when it starts and ends
Mosquito months in Rappahannock County
In a normal year mosquito season in Rappahannock 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 Rappahannock 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.
- 1 West Nile case since 2016 (last 2018): you should use repellent at dusk June to August, more so if over 60.
Rappahannock County against the rest of VA
Rappahannock County has the 85th longest season of 133 VA counties, at 210 days against 257 in Norfolk city and 172 in Highland County. Its mean temperature is 54.2°F.
- Culpeper County: April 5 to November 1 (210 days, 0 WNV)
- Fairfax County: April 5 to November 1 (210 days, 31 WNV)
- Nelson County: April 5 to October 31 (209 days, 0 WNV)
- Fairfax city: April 6 to November 1 (209 days, 0 WNV)
West Nile in Rappahannock County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Rappahannock County (0 neuroinvasive) across 1 year. The worst was 2018 with 1; the latest was 2018.
See how the dates are worked out, and when the season starts across the US.