Mosquito season in LaMoure County, ND: when it starts and ends
Mosquito months in LaMoure County
In a normal year mosquito season in LaMoure County, ND starts around May 2 and ends around October 5, about 22 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in LaMoure County, and when
- Start tipping out standing water weekly by April 18.
- Book any yard treatment for early May, ahead of the July peak.
- Repellent can go away after October 5.
- 6 West Nile cases since 2016 (last 2021): you should use repellent at dusk July to July, more so if over 60.
LaMoure County against the rest of ND
LaMoure County has the 6th longest season of 53 ND counties, at 156 days against 160 in Sheridan County and 135 in Rolette County. Its mean temperature is 42.5°F.
- Dickey County: April 30 to October 5 (158 days, 9 WNV)
- Traill County: May 2 to October 5 (157 days, 5 WNV)
- Walsh County: May 2 to October 4 (154 days, 5 WNV)
- Cass County: May 3 to October 4 (154 days, 79 WNV)
West Nile in LaMoure County
From 1999 to 2025, CDC ArboNET counted 47 human West Nile cases in LaMoure County (6 neuroinvasive) across 8 years. The worst was 2003 with 26; the latest was 2021.
Background: reading the West Nile counts; how the dates are worked out.