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

Mosquito months in Lee County

In a normal year mosquito season in Lee County, GA starts around February 26 and ends around December 4, about 40 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 Lee County, and when

• Start tipping out standing water weekly by February 12.
• Book any yard treatment for late February, ahead of the July peak.
• Repellent can go away after December 4.
• 1 West Nile case since 2016 (last 2017): you should use repellent at dusk May to September, more so if over 60.

Lee County against the rest of GA

Lee County has the 52nd longest season of 159 GA counties, at 281 days against 347 in Glynn County and 199 in Union County. Its mean temperature is 65.7°F.

• Telfair County: February 25 to December 4 (282 days, 0 WNV)
• Wilkinson County: February 25 to December 4 (282 days, 0 WNV)
• McDuffie County: February 26 to December 4 (281 days, 1 WNV)
• Terrell County: February 26 to December 4 (281 days, 0 WNV)

West Nile in Lee County

From 1999 to 2025, CDC ArboNET counted 5 human West Nile cases in Lee County (4 neuroinvasive) across 4 years. The worst was 2012 with 2; the latest was 2017.

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