Mosquito season in Finney County, KS: when it starts and ends
Mosquito months in Finney County
In a normal year mosquito season in Finney County, KS starts around April 17 and ends around October 25, about 27 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Finney County, and when
- Start tipping out standing water weekly by April 3.
- Book any yard treatment for mid April, ahead of the July peak.
- Repellent can go away after October 25.
- 7 West Nile cases since 2016 (last 2025): you should use repellent at dusk June to August, more so if over 60.
Finney County against the rest of KS
Finney County has the 85th longest season of 105 KS counties, at 191 days against 227 in Cherokee County and 178 in Thomas County. Its mean temperature is 54.5°F.
- Phillips County: April 15 to October 23 (191 days, 1 WNV)
- Grant County: April 16 to October 24 (191 days, 5 WNV)
- Lincoln County: April 17 to October 23 (189 days, 1 WNV)
- Wallace County: April 17 to October 22 (188 days, 4 WNV)
West Nile in Finney County
From 1999 to 2025, CDC ArboNET counted 12 human West Nile cases in Finney County (4 neuroinvasive) across 9 years. The worst was 2023 with 2; the latest was 2025.
See how the dates are worked out, and reading the West Nile counts.