Mosquito season in Grady County, GA: when it starts and ends

Mosquito months in Grady County

In a normal year mosquito season in Grady County, GA starts around February 25 and ends around January 12, about 46 weeks.

What to do in Grady County, and when

Start tipping out standing water weekly by February 11.
Book any yard treatment for late February, ahead of the August peak.
Repellent can go away after January 12.
No West Nile cases since 2016, so bites in Grady County are a nuisance; check window screens.

Grady County against the rest of GA

Grady County has the 16th longest season of 159 GA counties, at 321 days against 347 in Glynn County and 199 in Union County. Its mean temperature is 66.5°F.

Irwin County: February 13 to January 1 (322 days, 0 WNV)
Thomas County: February 25 to January 13 (322 days, 0 WNV)
Early County: February 17 to January 2 (319 days, 0 WNV)
Evans County: February 23 to January 4 (315 days, 0 WNV)

West Nile in Grady County

CDC ArboNET lists no human West Nile cases for Grady County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 2 of those years.

See how the dates are worked out, and when the season starts across the US.