Mosquito season in Stafford County, KS: when it starts and ends
Mosquito months in Stafford County
In a normal year mosquito season in Stafford County, KS starts around April 7 and ends around October 30, about 29 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Stafford County, and when
- Start tipping out standing water weekly by March 24.
- Book any yard treatment for early April, ahead of the July peak.
- Repellent can go away after October 30.
- 4 West Nile cases since 2016 (last 2025): you should use repellent at dusk June to September, more so if over 60.
Stafford County against the rest of KS
Stafford County has the 42nd longest season of 105 KS counties, at 206 days against 227 in Cherokee County and 178 in Thomas County. Its mean temperature is 56.2°F.
- Wabaunsee County: April 6 to October 29 (206 days, 1 WNV)
- Jefferson County: April 7 to October 30 (206 days, 1 WNV)
- Seward County: April 9 to November 1 (206 days, 2 WNV)
- Kearny County: April 7 to October 29 (205 days, 2 WNV)
West Nile in Stafford County
From 1999 to 2025, CDC ArboNET counted 18 human West Nile cases in Stafford County (4 neuroinvasive) across 12 years. The worst was 2014 with 3; the latest was 2025.
Background: reading the West Nile counts; how the dates are worked out.