Mosquito season in Baxter County, AR: when it starts and ends

Mosquito months in Baxter County

In a normal year mosquito season in Baxter County, AR starts around March 20 and ends around November 10, about 34 weeks.

1. Jan
2. Feb
3. Mar
4. Apr
5. May
6. Jun
7. Jul
8. Aug
9. Sep
10. Oct
11. Nov
12. Dec

What to do in Baxter County, and when

• Start tipping out standing water weekly by March 6.
• Book any yard treatment for mid March, ahead of the July peak.
• Repellent can go away after November 10.
• No West Nile cases since 2016, so bites in Baxter County are a nuisance; check window screens.

Baxter County against the rest of AR

Baxter County has the 58th longest season of 75 AR counties, at 235 days against 274 in Chicot County and 211 in Washington County. Its mean temperature is 58.2°F.

• Stone County: March 19 to November 11 (237 days, 0 WNV)
• Randolph County: March 19 to November 9 (235 days, 0 WNV)
• Marion County: March 20 to November 9 (234 days, 1 WNV)
• Pike County: March 22 to November 11 (234 days, 0 WNV)

West Nile in Baxter County

CDC ArboNET lists no human West Nile cases for Baxter County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 5 of those years.

Background: when the season starts across the US; how the dates are worked out.