Mosquito season in Lac qui Parle County, MN: when it starts and ends
Mosquito months in Lac qui Parle County
In a normal year mosquito season in Lac qui Parle County, MN starts around April 28 and ends around October 8, about 23 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Lac qui Parle County, and when
- Start tipping out standing water weekly by April 14.
- Book any yard treatment for late April, ahead of the July peak.
- Repellent can go away after October 8.
- 3 West Nile cases since 2016 (last 2025): you should use repellent at dusk July to July, more so if over 60.
Lac qui Parle County against the rest of MN
Lac qui Parle County has the 37th longest season of 87 MN counties, at 163 days against 176 in Winona County and 118 in Cook County. Its mean temperature is 43.8°F.
- Carver County: April 29 to October 10 (164 days, 11 WNV)
- Rice County: April 29 to October 9 (164 days, 6 WNV)
- Traverse County: April 28 to October 9 (163 days, 7 WNV)
- Jackson County: April 29 to October 9 (163 days, 3 WNV)
West Nile in Lac qui Parle County
From 1999 to 2025, CDC ArboNET counted 13 human West Nile cases in Lac qui Parle County (7 neuroinvasive) across 9 years. The worst was 2006 with 3; the latest was 2025.
More: how the dates are worked out · when mosquitoes go away for the winter.