Mosquito season in Carlisle County, KY: when it starts and ends

Mosquito months in Carlisle County

In a normal year mosquito season in Carlisle County, KY starts around March 23 and ends around November 7, about 33 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 Carlisle County, and when

• Start tipping out standing water weekly by March 9.
• Book any yard treatment for late March, ahead of the July peak.
• Repellent can go away after November 7.
• No West Nile cases since 2016, so bites in Carlisle County are a nuisance; check window screens.

Carlisle County against the rest of KY

Carlisle County has the 11th longest season of 120 KY counties, at 229 days against 249 in Lyon County and 180 in Shelby County. Its mean temperature is 58.2°F.

• Warren County: March 24 to November 10 (231 days, 2 WNV)
• Livingston County: March 23 to November 8 (230 days, 0 WNV)
• Hickman County: March 23 to November 7 (229 days, 0 WNV)
• Graves County: March 24 to November 8 (229 days, 0 WNV)

West Nile in Carlisle County

CDC ArboNET lists no human West Nile cases for Carlisle County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 4 of those years.

See how the dates are worked out, and when the season starts across the US.