Mosquito season in Breckinridge County, KY: when it starts and ends
Mosquito months in Breckinridge County
In a normal year mosquito season in Breckinridge County, KY starts around April 14 and ends around October 25, about 28 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Breckinridge County, and when
- Start tipping out standing water weekly by March 31.
- Book any yard treatment for mid April, ahead of the July peak.
- Repellent can go away after October 25.
- 1 West Nile case since 2016 (last 2016): you should use repellent at dusk June to August, more so if over 60.
Breckinridge County against the rest of KY
Breckinridge County has the 116th longest season of 120 KY counties, at 194 days against 249 in Lyon County and 180 in Shelby County. Its mean temperature is 55.4°F.
- Lewis County: April 14 to October 27 (196 days, 0 WNV)
- Carter County: April 14 to October 26 (195 days, 0 WNV)
- Grayson County: April 14 to October 24 (193 days, 0 WNV)
- Morgan County: April 17 to October 26 (192 days, 0 WNV)
West Nile in Breckinridge County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Breckinridge County (1 neuroinvasive) across 1 year. The worst was 2016 with 1; the latest was 2016.
Background: when the season starts across the US; how the dates are worked out.