Mosquito season in Bates County, MO: when it starts and ends
Mosquito months in Bates County
In a normal year mosquito season in Bates County, MO starts around April 2 and ends around November 1, about 30 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Bates County, and when
- Start tipping out standing water weekly by March 19.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after November 1.
- No West Nile cases since 2016, so bites in Bates County are a nuisance; check window screens.
Bates County against the rest of MO
Bates County has the 52nd longest season of 115 MO counties, at 213 days against 242 in Pemiscot County and 187 in Crawford County. Its mean temperature is 55.6°F.
- Jackson County: April 1 to October 31 (213 days, 21 WNV)
- Pulaski County: April 1 to October 31 (213 days, 2 WNV)
- Wright County: April 2 to November 1 (213 days, 0 WNV)
- Cass County: April 2 to October 31 (212 days, 1 WNV)
West Nile in Bates County
CDC ArboNET lists no human West Nile cases for Bates County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 7 of those years.
Background: when the season starts across the US; how the dates are worked out.