Mosquito season in Richmond County, GA: when it starts and ends
Mosquito months in Richmond County
In a normal year mosquito season in Richmond County, GA starts around February 8 and ends around December 16, about 44 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Richmond County, and when
- Start tipping out standing water weekly by January 25.
- Book any yard treatment for early February, ahead of the July peak.
- Repellent can go away after December 16.
- 9 West Nile cases since 2016 (last 2025): you should use repellent at dusk May to September, more so if over 60.
Richmond County against the rest of GA
Richmond County has the 27th longest season of 159 GA counties, at 311 days against 347 in Glynn County and 199 in Union County. Its mean temperature is 66.1°F.
- Wheeler County: February 24 to January 2 (312 days, 1 WNV)
- Mitchell County: February 25 to January 3 (312 days, 3 WNV)
- Baker County: February 27 to January 2 (309 days, 0 WNV)
- Toombs County: March 3 to January 3 (306 days, 0 WNV)
West Nile in Richmond County
From 1999 to 2025, CDC ArboNET counted 25 human West Nile cases in Richmond County (18 neuroinvasive) across 13 years. The worst was 2022 with 4; the latest was 2025.
Background: reading the West Nile counts; how the dates are worked out.