Mosquito season in Maries County, MO: when it starts and ends
Mosquito months in Maries County
In a normal year mosquito season in Maries County, MO starts around March 28 and ends around November 5, about 32 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Maries County, and when
- Start tipping out standing water weekly by March 14.
- Book any yard treatment for late March, ahead of the July peak.
- Repellent can go away after November 5.
- No West Nile cases since 2016, so bites in Maries County are a nuisance; check window screens.
Maries County against the rest of MO
Maries County has the 17th longest season of 115 MO counties, at 222 days against 242 in Pemiscot County and 187 in Crawford County. Its mean temperature is 57.2°F.
- Stoddard County: March 27 to November 7 (225 days, 1 WNV)
- Jasper County: March 27 to November 5 (223 days, 0 WNV)
- Hickory County: March 29 to November 6 (222 days, 0 WNV)
- Boone County: March 27 to November 4 (221 days, 5 WNV)
West Nile in Maries County
CDC ArboNET lists no human West Nile cases for Maries County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 3 of those years.
More: how the dates are worked out · when the season starts across the US.