Mosquito season in Coosa County, AL: when it starts and ends

Mosquito months in Coosa County

In a normal year mosquito season in Coosa County, AL starts around March 11 and ends around November 24, about 37 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 Coosa 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 24.
• No West Nile cases since 2016, so bites in Coosa County are a nuisance; check window screens.

Coosa County against the rest of AL

Coosa County has the 36th longest season of 67 AL counties, at 258 days against 330 in Montgomery County and 218 in Marion County. Its mean temperature is 62.4°F.

• Clarke County: March 8 to November 21 (258 days, 0 WNV)
• Monroe County: March 8 to November 21 (258 days, 1 WNV)
• Pickens County: March 8 to November 20 (257 days, 1 WNV)
• Elmore County: March 10 to November 21 (256 days, 6 WNV)

West Nile in Coosa County

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

Background: when mosquitoes go away for the winter; how the dates are worked out.