Mosquito season in Shoshone County, ID: when it starts and ends
Mosquito months in Shoshone County
In a normal year mosquito season in Shoshone County, ID starts around May 8 and ends around September 30, about 21 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Shoshone 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 September 30.
- No West Nile cases since 2016, so bites in Shoshone County are a nuisance; check window screens.
Shoshone County against the rest of ID
Shoshone County has the 25th longest season of 44 ID counties, at 145 days against 194 in Canyon County and 85 in Fremont County. Its mean temperature is 44.7°F.
- Oneida County: May 4 to October 2 (151 days, 0 WNV)
- Madison County: May 5 to October 3 (151 days, 0 WNV)
- Lewis County: May 13 to October 4 (144 days, 1 WNV)
- Clark County: May 10 to September 30 (143 days, 0 WNV)
West Nile in Shoshone County
CDC ArboNET lists no human West Nile cases for Shoshone County from 1999 to 2025.
More: how the dates are worked out · when mosquitoes go away for the winter.