Mosquito season in Cherokee County, KS: when it starts and ends

Mosquito months in Cherokee County

In a normal year mosquito season in Cherokee County, KS starts around March 25 and ends around November 7, about 32 weeks.

1. Jan
2. Feb
3. Mar
4. Apr
5. May
6. Jun
7. Jul
8. Aug
9. Sep
10. Oct
11. Nov
12. Dec

What to do in Cherokee County, and when

• Start tipping out standing water weekly by March 11.
• Book any yard treatment for late March, ahead of the July peak.
• Repellent can go away after November 7.
• 1 West Nile case since 2016 (last 2025): you should use repellent at dusk June to September, more so if over 60.

Cherokee County against the rest of KS

Cherokee County has the 1st longest season of 105 KS counties, at 227 days against 227 in Cherokee County and 178 in Thomas County. Its mean temperature is 57.2°F.

• Montgomery County: March 26 to November 8 (227 days, 1 WNV)
• Crawford County: March 27 to November 4 (223 days, 3 WNV)

West Nile in Cherokee County

From 1999 to 2025, CDC ArboNET counted 1 human West Nile case in Cherokee County (1 neuroinvasive) across 1 year. The worst was 2025 with 1; the latest was 2025.

More: how the dates are worked out · when mosquitoes go away for the winter.