Mosquito season in Fredericksburg city, VA: when it starts and ends
Mosquito months in Fredericksburg city
In a normal year mosquito season in Fredericksburg city, VA starts around March 28 and ends around November 7, about 32 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Fredericksburg city, and when
- Start tipping out standing water weekly by March 14.
- Book any yard treatment for late March, ahead of the July peak.
- Repellent can go away after November 7.
- 1 West Nile case since 2016 (last 2018): you should use repellent at dusk June to August, more so if over 60.
Fredericksburg city against the rest of VA
Fredericksburg city has the 48th longest season of 133 VA counties, at 224 days against 257 in Norfolk city and 172 in Highland County. Its mean temperature is 56.8°F.
- Richmond County: March 29 to November 10 (226 days, 0 WNV)
- Westmoreland County: March 29 to November 10 (226 days, 1 WNV)
- Bedford County: March 29 to November 8 (224 days, 1 WNV)
- Dinwiddie County: March 29 to November 8 (224 days, 0 WNV)
West Nile in Fredericksburg city
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Fredericksburg city (1 neuroinvasive) across 1 year. The worst was 2018 with 1; the latest was 2018.
More: how the dates are worked out · when mosquitoes go away for the winter.