Mosquito season in Todd County, MN: when it starts and ends
Mosquito months in Todd County
In a normal year mosquito season in Todd County, MN starts around May 8 and ends around October 1, about 21 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Todd 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 1.
- 5 West Nile cases since 2016 (last 2024): you should use repellent at dusk July, more so if over 60.
Todd County against the rest of MN
Todd County has the 77th longest season of 87 MN counties, at 147 days against 176 in Winona County and 118 in Cook County. Its mean temperature is 40.2°F.
- Kittson County: May 6 to September 30 (147 days, 0 WNV)
- Pine County: May 7 to October 2 (147 days, 1 WNV)
- Beltrami County: May 9 to September 30 (144 days, 0 WNV)
- Clearwater County: May 9 to September 29 (143 days, 0 WNV)
West Nile in Todd County
From 1999 to 2025, CDC ArboNET counted 6 human West Nile cases in Todd County (2 neuroinvasive) across 5 years. The worst was 2017 with 2; the latest was 2024.
More: how the dates are worked out · reading the West Nile counts.