Mosquito season in Burke County, ND: when it starts and ends
Mosquito months in Burke County
In a normal year mosquito season in Burke County, ND starts around May 10 and ends around September 25, about 20 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Burke County, and when
- Start tipping out standing water weekly by April 26.
- Book any yard treatment for early May, ahead of the July peak.
- Repellent can go away after September 25.
- 2 West Nile cases since 2016 (last 2018): you should use repellent at dusk July, more so if over 60.
Burke County against the rest of ND
Burke County has the 49th longest season of 53 ND counties, at 138 days against 160 in Sheridan County and 135 in Rolette County. Its mean temperature is 38.5°F.
- Williams County: May 11 to September 28 (140 days, 31 WNV)
- Mountrail County: May 11 to September 27 (139 days, 20 WNV)
- Cavalier County: May 11 to September 26 (138 days, 1 WNV)
- Towner County: May 12 to September 26 (137 days, 0 WNV)
West Nile in Burke County
From 1999 to 2025, CDC ArboNET counted 13 human West Nile cases in Burke County (4 neuroinvasive) across 6 years. The worst was 2003 with 5; the latest was 2018.
Background: when the season starts across the US; how the dates are worked out.