Mosquito season in Rowan County, KY: when it starts and ends
Mosquito months in Rowan County
In a normal year mosquito season in Rowan County, KY starts around April 3 and ends around October 31, about 30 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Rowan County, and when
- Start tipping out standing water weekly by March 20.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after October 31.
- 1 West Nile case since 2016 (last 2025): you should use repellent at dusk June to August, more so if over 60.
Rowan County against the rest of KY
Rowan County has the 67th longest season of 120 KY counties, at 211 days against 249 in Lyon County and 180 in Shelby County. Its mean temperature is 54.4°F.
- Campbell County: April 3 to October 31 (211 days, 1 WNV)
- Menifee County: April 3 to October 31 (211 days, 0 WNV)
- Bracken County: April 4 to November 1 (211 days, 0 WNV)
- Fleming County: April 4 to November 1 (211 days, 0 WNV)
West Nile in Rowan County
From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Rowan County (1 neuroinvasive) across 1 year. The worst was 2025 with 1; the latest was 2025.
Background: when the season starts across the US; how the dates are worked out.