Mosquito season in Upson County, GA: when it starts and ends
Mosquito months in Upson County
In a normal year mosquito season in Upson County, GA starts around March 10 and ends around November 26, about 37 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Upson County, and when
- Start tipping out standing water weekly by February 24.
- Book any yard treatment for early March, ahead of the July peak.
- Repellent can go away after November 26.
- No West Nile cases since 2016, so bites in Upson County are a nuisance; check window screens.
Upson County against the rest of GA
Upson County has the 91st longest season of 159 GA counties, at 261 days against 347 in Glynn County and 199 in Union County. Its mean temperature is 63.4°F.
- Hart County: March 7 to November 23 (261 days, 0 WNV)
- Clarke County: March 9 to November 25 (261 days, 1 WNV)
- Franklin County: March 7 to November 22 (260 days, 0 WNV)
- Emanuel County: March 8 to November 22 (259 days, 0 WNV)
West Nile in Upson County
CDC ArboNET lists no human West Nile cases for Upson County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 3 of those years.
More: how the dates are worked out · when the season starts across the US.