Mosquito season in Carroll County, AR: when it starts and ends
Mosquito months in Carroll County
In a normal year mosquito season in Carroll County, AR starts around March 26 and ends around November 10, about 33 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Carroll 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 10.
- No West Nile cases since 2016, so bites in Carroll County are a nuisance; check window screens.
Carroll County against the rest of AR
Carroll County has the 63rd longest season of 75 AR counties, at 229 days against 274 in Chicot County and 211 in Washington County. Its mean temperature is 58.1°F.
- Polk County: March 22 to November 10 (233 days, 0 WNV)
- Boone County: March 24 to November 10 (231 days, 0 WNV)
- Sharp County: March 24 to November 7 (228 days, 1 WNV)
- Montgomery County: March 26 to November 5 (224 days, 0 WNV)
West Nile in Carroll County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Carroll County (1 neuroinvasive) across 1 year. The worst was 2015 with 1; the latest was 2015.
More: how the dates are worked out · when mosquitoes go away for the winter.