Mosquito season in Kershaw County, SC: when it starts and ends

Mosquito months in Kershaw County

In a normal year mosquito season in Kershaw County, SC starts around March 11 and ends around November 27, about 37 weeks.

1. Jan
2. Feb
3. Mar
4. Apr
5. May
6. Jun
7. Jul
8. Aug
9. Sep
10. Oct
11. Nov
12. Dec

What to do in Kershaw County, and when

• Start tipping out standing water weekly by February 25.
• Book any yard treatment for mid March, ahead of the July peak.
• Repellent can go away after November 27.
• 1 West Nile case since 2016 (last 2023): you should use repellent at dusk June to September, more so if over 60.

Kershaw County against the rest of SC

Kershaw County has the 20th longest season of 46 SC counties, at 261 days against 349 in Charleston County and 209 in Cherokee County. Its mean temperature is 62.2°F.

• Dorchester County: March 7 to November 29 (267 days, 4 WNV)
• Marion County: March 4 to November 24 (265 days, 0 WNV)
• Clarendon County: March 9 to November 24 (260 days, 0 WNV)
• Anderson County: March 11 to November 24 (258 days, 5 WNV)

West Nile in Kershaw County

From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Kershaw County (1 neuroinvasive) across 1 year. The worst was 2023 with 1; the latest was 2023.

Background: when the season starts across the US; how the dates are worked out.