Mosquito season in Lee County, SC: when it starts and ends
Mosquito months in Lee County
In a normal year mosquito season in Lee County, SC starts around March 16 and ends around November 16, about 35 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Lee County, and when
- Start tipping out standing water weekly by March 2.
- Book any yard treatment for mid March, ahead of the July peak.
- Repellent can go away after November 16.
- No West Nile cases since 2016, so bites in Lee County are a nuisance; check window screens.
Lee County against the rest of SC
Lee County has the 32nd longest season of 46 SC counties, at 245 days against 349 in Charleston County and 209 in Cherokee County. Its mean temperature is 62.7°F.
- McCormick County: March 16 to November 20 (249 days, 0 WNV)
- Newberry County: March 18 to November 20 (247 days, 1 WNV)
- Saluda County: March 17 to November 16 (244 days, 0 WNV)
- Williamsburg County: March 17 to November 16 (244 days, 0 WNV)
West Nile in Lee County
CDC ArboNET lists no human West Nile cases for Lee County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 2 of those years.
See how the dates are worked out, and when mosquitoes go away for the winter.