Mosquito season in Sandusky County, OH: when it starts and ends
Mosquito months in Sandusky County
In a normal year mosquito season in Sandusky County, OH starts around April 18 and ends around October 24, about 27 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Sandusky County, and when
- Start tipping out standing water weekly by April 4.
- Book any yard treatment for mid April, ahead of the July peak.
- Repellent can go away after October 24.
- 1 West Nile case since 2016 (last 2016): you should use repellent at dusk June to August, more so if over 60.
Sandusky County against the rest of OH
Sandusky County has the 60th longest season of 88 OH counties, at 189 days against 209 in Gallia County and 177 in Ashtabula County. Its mean temperature is 50.8°F.
- Wood County: April 18 to October 24 (190 days, 1 WNV)
- Jefferson County: April 18 to October 24 (189 days, 1 WNV)
- Noble County: April 19 to October 25 (189 days, 1 WNV)
- Henry County: April 18 to October 23 (188 days, 1 WNV)
West Nile in Sandusky County
From 1999 to 2025, CDC ArboNET counted 3 human West Nile cases in Sandusky County (3 neuroinvasive) across 3 years. The worst was 2016 with 1; the latest was 2016.
More: how the dates are worked out · when the season starts across the US.