Mosquito season in Crawford County, KS: when it starts and ends
Mosquito months in Crawford County
In a normal year mosquito season in Crawford County, KS starts around March 27 and ends around November 4, about 32 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Crawford County, and when
- Start tipping out standing water weekly by March 13.
- Book any yard treatment for late March, ahead of the July peak.
- Repellent can go away after November 4.
- 3 West Nile cases since 2016 (last 2025): you should use repellent at dusk June to August, more so if over 60.
Crawford County against the rest of KS
Crawford County has the 3rd longest season of 105 KS counties, at 223 days against 227 in Cherokee County and 178 in Thomas County. Its mean temperature is 56.6°F.
- Cherokee County: March 25 to November 7 (227 days, 1 WNV)
- Montgomery County: March 26 to November 8 (227 days, 1 WNV)
- Bourbon County: March 28 to November 4 (221 days, 0 WNV)
- Neosho County: March 29 to November 5 (221 days, 0 WNV)
West Nile in Crawford County
From 1999 to 2025, CDC ArboNET counted 5 human West Nile cases in Crawford County (2 neuroinvasive) across 4 years. The worst was 2015 with 2; the latest was 2025.
See how the dates are worked out, and when mosquitoes go away for the winter.