Mosquito season in Phillips County, AR: when it starts and ends
Mosquito months in Phillips County
In a normal year mosquito season in Phillips County, AR starts around March 5 and ends around November 22, about 37 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Phillips County, and when
- Start tipping out standing water weekly by February 19.
- Book any yard treatment for early March, ahead of the July peak.
- Repellent can go away after November 22.
- No West Nile cases since 2016, so bites in Phillips County are a nuisance; check window screens.
Phillips County against the rest of AR
Phillips County has the 13th longest season of 75 AR counties, at 262 days against 274 in Chicot County and 211 in Washington County. Its mean temperature is 62.1°F.
- Crittenden County: March 4 to November 22 (263 days, 1 WNV)
- Union County: March 4 to November 21 (262 days, 7 WNV)
- Bradley County: March 6 to November 23 (262 days, 1 WNV)
- Prairie County: March 5 to November 21 (261 days, 0 WNV)
West Nile in Phillips County
From 1999 to 2025, CDC ArboNET counted 3 human West Nile cases in Phillips County (3 neuroinvasive) across 3 years. The worst was 2012 with 1; the latest was 2012.
Background: when mosquitoes go away for the winter; how the dates are worked out.