Mosquito season in Graves County, KY: when it starts and ends
Mosquito months in Graves County
In a normal year mosquito season in Graves County, KY starts around March 24 and ends around November 8, about 33 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Graves 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 8.
- No West Nile cases since 2016, so bites in Graves County are a nuisance; check window screens.
Graves County against the rest of KY
Graves County has the 13th longest season of 120 KY counties, at 229 days against 249 in Lyon County and 180 in Shelby County. Its mean temperature is 58°F.
- Carlisle County: March 23 to November 7 (229 days, 0 WNV)
- Hickman County: March 23 to November 7 (229 days, 0 WNV)
- Pulaski County: March 25 to November 9 (229 days, 0 WNV)
- McLean County: March 23 to November 6 (228 days, 0 WNV)
West Nile in Graves County
From 1999 to 2025, CDC ArboNET counted 2 human West Nile cases in Graves County (1 neuroinvasive) across 1 year. The worst was 2002 with 2; the latest was 2002.
See how the dates are worked out, and when mosquitoes go away for the winter.