Mosquito season in Pike County, MO: when it starts and ends
Mosquito months in Pike County
In a normal year mosquito season in Pike County, MO starts around April 5 and ends around October 29, about 30 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Pike County, and when
- Start tipping out standing water weekly by March 22.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after October 29.
- No West Nile cases since 2016, so bites in Pike County are a nuisance; check window screens.
Pike County against the rest of MO
Pike County has the 79th longest season of 115 MO counties, at 207 days against 242 in Pemiscot County and 187 in Crawford County. Its mean temperature is 53.3°F.
- Callaway County: April 4 to October 28 (207 days, 0 WNV)
- Macon County: April 5 to October 29 (207 days, 0 WNV)
- Lincoln County: April 6 to October 29 (206 days, 2 WNV)
- Marion County: April 6 to October 28 (205 days, 1 WNV)
West Nile in Pike County
From 1999 to 2025, CDC ArboNET counted 2 human West Nile cases in Pike County (2 neuroinvasive) across 2 years. The worst was 2015 with 1; the latest was 2015.
More: how the dates are worked out · when the season starts across the US.