Mosquito season in Franklin County, AR: when it starts and ends
Mosquito months in Franklin County
In a normal year mosquito season in Franklin County, AR starts around March 15 and ends around November 15, about 35 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Franklin County, and when
- Start tipping out standing water weekly by March 1.
- Book any yard treatment for mid March, ahead of the July peak.
- Repellent can go away after November 15.
- No West Nile cases since 2016, so bites in Franklin County are a nuisance; check window screens.
Franklin County against the rest of AR
Franklin County has the 44th longest season of 75 AR counties, at 245 days against 274 in Chicot County and 211 in Washington County. Its mean temperature is 60.2°F.
- Logan County: March 14 to November 15 (246 days, 0 WNV)
- Conway County: March 14 to November 14 (245 days, 1 WNV)
- Columbia County: March 14 to November 13 (244 days, 3 WNV)
- Poinsett County: March 15 to November 14 (244 days, 0 WNV)
West Nile in Franklin County
CDC ArboNET lists no human West Nile cases for Franklin County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 8 of those years.
Background: when mosquitoes go away for the winter; how the dates are worked out.