Mosquito season in McCracken County, KY: when it starts and ends
Mosquito months in McCracken County
In a normal year mosquito season in McCracken County, KY starts around March 24 and ends around November 7, about 33 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in McCracken County, and when
- Start tipping out standing water weekly by March 10.
- Book any yard treatment for late March, ahead of the July peak.
- Repellent can go away after November 7.
- 9 West Nile cases since 2016 (last 2025): you should use repellent at dusk June to September, more so if over 60.
McCracken County against the rest of KY
McCracken County has the 16th longest season of 120 KY counties, at 228 days against 249 in Lyon County and 180 in Shelby County. Its mean temperature is 58.4°F.
- Pulaski County: March 25 to November 9 (229 days, 0 WNV)
- McLean County: March 23 to November 6 (228 days, 0 WNV)
- Metcalfe County: March 25 to November 8 (228 days, 1 WNV)
- Simpson County: March 26 to November 9 (228 days, 0 WNV)
West Nile in McCracken County
From 1999 to 2025, CDC ArboNET counted 17 human West Nile cases in McCracken County (12 neuroinvasive) across 10 years. The worst was 2025 with 3; the latest was 2025.
See how the dates are worked out, and reading the West Nile counts.