Mosquito season in Clay County, AR: when it starts and ends
Mosquito months in Clay County
In a normal year mosquito season in Clay County, AR starts around March 16 and ends around November 12, about 34 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Clay County, and when
- Start tipping out standing water weekly by March 2.
- Book any yard treatment for mid March, ahead of the July peak.
- Repellent can go away after November 12.
- No West Nile cases since 2016, so bites in Clay County are a nuisance; check window screens.
Clay County against the rest of AR
Clay County has the 51st longest season of 75 AR counties, at 241 days against 274 in Chicot County and 211 in Washington County. Its mean temperature is 59.5°F.
- Hot Spring County: March 18 to November 16 (243 days, 0 WNV)
- Garland County: March 18 to November 15 (242 days, 3 WNV)
- Greene County: March 17 to November 12 (240 days, 1 WNV)
- Independence County: March 17 to November 12 (240 days, 1 WNV)
West Nile in Clay County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Clay County (1 neuroinvasive) across 1 year. The worst was 2006 with 1; the latest was 2006.
See how the dates are worked out, and when mosquitoes go away for the winter.