Mosquito season in Bryan County, GA: when it starts and ends
Mosquito months in Bryan County
In a normal year mosquito season in Bryan County, GA starts around February 13 and ends around December 22, about 45 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Bryan County, and when
- Start tipping out standing water weekly by January 30.
- Book any yard treatment for mid February, ahead of the July peak.
- Repellent can go away after December 22.
- 1 West Nile case since 2016 (last 2020): you should use repellent at dusk May to September, more so if over 60.
Bryan County against the rest of GA
Bryan County has the 23rd longest season of 159 GA counties, at 312 days against 347 in Glynn County and 199 in Union County. Its mean temperature is 67.4°F.
- Montgomery County: February 24 to January 4 (314 days, 0 WNV)
- Jeff Davis County: February 24 to January 3 (313 days, 2 WNV)
- Chatham County: February 13 to December 22 (312 days, 7 WNV)
- Wheeler County: February 24 to January 2 (312 days, 1 WNV)
West Nile in Bryan County
From 1999 to 2025, CDC ArboNET counted 4 human West Nile cases in Bryan County (2 neuroinvasive) across 3 years. The worst was 2012 with 2; the latest was 2020.
Background: when mosquitoes go away for the winter; how the dates are worked out.