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

Mosquito months in Jasper County

In a normal year mosquito season in Jasper County, SC starts around February 8 and ends around January 12, about 48 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 Jasper 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 January 12.
• No West Nile cases since 2016, so bites in Jasper County are a nuisance; check window screens.

Jasper County against the rest of SC

Jasper County has the 2nd longest season of 46 SC counties, at 338 days against 349 in Charleston County and 209 in Cherokee County. Its mean temperature is 66.6°F.

• Charleston County: January 24 to January 8 (349 days, 11 WNV)
• Beaufort County: February 9 to December 28 (322 days, 3 WNV)
• Hampton County: February 14 to December 15 (304 days, 0 WNV)

West Nile in Jasper County

From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Jasper County (0 neuroinvasive) across 1 year. The worst was 2003 with 1; the latest was 2003.

More: how the dates are worked out · where mosquitoes never stop.