Mosquito season in Lincoln County, ID: when it starts and ends
Mosquito months in Lincoln County
In a normal year mosquito season in Lincoln County, ID starts around May 8 and ends around October 7, about 22 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Lincoln County, and when
- Start tipping out standing water weekly by April 24.
- Book any yard treatment for early May, ahead of the July peak.
- Repellent can go away after October 7.
- 2 West Nile cases since 2016 (last 2018): you should use repellent at dusk July to August, more so if over 60.
Lincoln County against the rest of ID
Lincoln County has the 21st longest season of 44 ID counties, at 152 days against 194 in Canyon County and 85 in Fremont County. Its mean temperature is 46.6°F.
- Bannock County: May 4 to October 4 (153 days, 1 WNV)
- Owyhee County: May 9 to October 9 (153 days, 11 WNV)
- Bonner County: May 3 to October 1 (151 days, 0 WNV)
- Oneida County: May 4 to October 2 (151 days, 0 WNV)
West Nile in Lincoln County
From 1999 to 2025, CDC ArboNET counted 18 human West Nile cases in Lincoln County (5 neuroinvasive) across 5 years. The worst was 2006 with 9; the latest was 2018.
Background: when mosquitoes go away for the winter; how the dates are worked out.