Mosquito season in Lee County, FL: when it starts and ends
Mosquito months in Lee County
Mosquitoes in Lee County, FL can be active in any month. The worst stretch is March to November.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Lee County, and when
- No off-season here: tip out standing water every week, all year.
- A yard treatment matters most March to November.
- 1 West Nile case since 2016 (last 2020): you should use repellent at dusk March to November, more so if over 60.
Lee County against the rest of FL
Lee County has the 6th longest season of 67 FL counties, at 365 days against 365 in Broward County and 281 in Gilchrist County. Its mean temperature is 75.3°F.
- Hillsborough County: all year (365 days, 2 WNV)
- Indian River County: all year (365 days, 0 WNV)
- Manatee County: all year (365 days, 1 WNV)
- Martin County: all year (365 days, 2 WNV)
West Nile in Lee County
From 1999 to 2025, CDC ArboNET counted 7 human West Nile cases in Lee County (5 neuroinvasive) across 5 years. The worst was 2003 with 3; the latest was 2020.
Background: where mosquitoes never stop; how the dates are worked out.