Mosquito season in Jeff Davis County, GA: when it starts and ends
Mosquito months in Jeff Davis County
In a normal year mosquito season in Jeff Davis County, GA starts around February 24 and ends around January 3, about 45 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Jeff Davis County, and when
- Start tipping out standing water weekly by February 10.
- Book any yard treatment for late February, ahead of the July peak.
- Repellent can go away after January 3.
- 2 West Nile cases since 2016 (last 2025): you should use repellent at dusk May to September, more so if over 60.
Jeff Davis County against the rest of GA
Jeff Davis County has the 22nd longest season of 159 GA counties, at 313 days against 347 in Glynn County and 199 in Union County. Its mean temperature is 66.1°F.
- Bulloch County: February 22 to January 2 (314 days, 2 WNV)
- Montgomery County: February 24 to January 4 (314 days, 0 WNV)
- Bryan County: February 13 to December 22 (312 days, 1 WNV)
- Chatham County: February 13 to December 22 (312 days, 7 WNV)
West Nile in Jeff Davis County
From 1999 to 2025, CDC ArboNET counted 3 human West Nile cases in Jeff Davis County (3 neuroinvasive) across 3 years. The worst was 2025 with 1; the latest was 2025.
More: how the dates are worked out · when the season starts across the US.