Mosquito season in Benton County, MS: when it starts and ends

Mosquito months in Benton County

In a normal year mosquito season in Benton County, MS starts around March 11 and ends around November 14, about 35 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 Benton County, and when

• Start tipping out standing water weekly by February 25.
• Book any yard treatment for mid March, ahead of the July peak.
• Repellent can go away after November 14.
• No West Nile cases since 2016, so bites in Benton County are a nuisance; check window screens.

Benton County against the rest of MS

Benton County has the 62nd longest season of 82 MS counties, at 248 days against 333 in Harrison County and 221 in Tishomingo County. Its mean temperature is 60°F.

• Jasper County: March 10 to November 15 (250 days, 0 WNV)
• Calhoun County: March 12 to November 17 (250 days, 9 WNV)
• Grenada County: March 12 to November 15 (248 days, 3 WNV)
• Smith County: March 12 to November 15 (248 days, 1 WNV)

West Nile in Benton County

CDC ArboNET lists no human West Nile cases for Benton County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 1 of those years.

More: how the dates are worked out · when mosquitoes go away for the winter.