Mosquito season in Smith County, KS: when it starts and ends
Mosquito months in Smith County
In a normal year mosquito season in Smith County, KS starts around April 13 and ends around October 24, about 28 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Smith County, and when
- Start tipping out standing water weekly by March 30.
- Book any yard treatment for mid April, ahead of the July peak.
- Repellent can go away after October 24.
- No West Nile cases since 2016, so bites in Smith County are a nuisance; check window screens.
Smith County against the rest of KS
Smith County has the 78th longest season of 105 KS counties, at 194 days against 227 in Cherokee County and 178 in Thomas County. Its mean temperature is 53.1°F.
- Gove County: April 13 to October 24 (194 days, 0 WNV)
- Jackson County: April 13 to October 24 (194 days, 2 WNV)
- Barton County: April 14 to October 25 (194 days, 8 WNV)
- Morton County: April 16 to October 26 (193 days, 1 WNV)
West Nile in Smith County
From 1999 to 2025, CDC ArboNET counted 2 human West Nile cases in Smith County (2 neuroinvasive) across 2 years. The worst was 2003 with 1; the latest was 2003.
More: how the dates are worked out · when the season starts across the US.