Mosquito season in Darlington County, SC: when it starts and ends
Mosquito months in Darlington County
In a normal year mosquito season in Darlington County, SC starts around March 18 and ends around November 17, about 35 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Darlington County, and when
- Start tipping out standing water weekly by March 4.
- Book any yard treatment for mid March, ahead of the July peak.
- Repellent can go away after November 17.
- 1 West Nile case since 2016 (last 2020): you should use repellent at dusk May to September, more so if over 60.
Darlington County against the rest of SC
Darlington County has the 35th longest season of 46 SC counties, at 244 days against 349 in Charleston County and 209 in Cherokee County. Its mean temperature is 62.8°F.
- Saluda County: March 17 to November 16 (244 days, 0 WNV)
- Williamsburg County: March 17 to November 16 (244 days, 0 WNV)
- Fairfield County: March 18 to November 17 (244 days, 0 WNV)
- Laurens County: March 18 to November 17 (244 days, 1 WNV)
West Nile in Darlington County
From 1999 to 2025, CDC ArboNET counted 3 human West Nile cases in Darlington County (3 neuroinvasive) across 3 years. The worst was 2020 with 1; the latest was 2020.
More: how the dates are worked out · when mosquitoes go away for the winter.