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

Mosquito months in Hall County

In a normal year mosquito season in Hall County, GA starts around March 12 and ends around November 20, 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 Hall County, and when

• Start tipping out standing water weekly by February 26.
• Book any yard treatment for mid March, ahead of the July peak.
• Repellent can go away after November 20.
• 2 West Nile cases since 2016 (last 2024): you should use repellent at dusk June to September, more so if over 60.

Hall County against the rest of GA

Hall County has the 110th longest season of 159 GA counties, at 253 days against 347 in Glynn County and 199 in Union County. Its mean temperature is 60.5°F.

• Glascock County: March 13 to November 22 (254 days, 0 WNV)
• Warren County: March 13 to November 22 (254 days, 0 WNV)
• Jefferson County: March 12 to November 20 (253 days, 0 WNV)
• Walker County: March 11 to November 16 (250 days, 0 WNV)

West Nile in Hall County

From 1999 to 2025, CDC ArboNET counted 4 human West Nile cases in Hall County (2 neuroinvasive) across 4 years. The worst was 2024 with 1; the latest was 2024.

More: how the dates are worked out · when the season starts across the US.