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

Mosquito months in Madison County

In a normal year mosquito season in Madison County, GA starts around March 15 and ends around November 19, about 36 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 Madison County, and when

• Start tipping out standing water weekly by March 1.
• Book any yard treatment for mid March, ahead of the July peak.
• Repellent can go away after November 19.
• No West Nile cases since 2016, so bites in Madison County are a nuisance; check window screens.

Madison County against the rest of GA

Madison County has the 117th longest season of 159 GA counties, at 249 days against 347 in Glynn County and 199 in Union County. Its mean temperature is 60.9°F.

• Douglas County: March 14 to November 19 (250 days, 2 WNV)
• Dade County: March 11 to November 15 (249 days, 0 WNV)
• Lincoln County: March 16 to November 20 (249 days, 0 WNV)
• Banks County: March 16 to November 19 (248 days, 0 WNV)

West Nile in Madison County

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

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