Mosquito season in Ellsworth County, KS: when it starts and ends
Mosquito months in Ellsworth County
In a normal year mosquito season in Ellsworth County, KS starts around April 13 and ends around October 26, about 28 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Ellsworth 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 26.
- 1 West Nile case since 2016 (last 2016): you should use repellent at dusk June to August, more so if over 60.
Ellsworth County against the rest of KS
Ellsworth County has the 73rd longest season of 105 KS counties, at 196 days against 227 in Cherokee County and 178 in Thomas County. Its mean temperature is 54.7°F.
- Russell County: April 12 to October 27 (198 days, 0 WNV)
- Republic County: April 12 to October 25 (196 days, 4 WNV)
- Trego County: April 13 to October 26 (196 days, 1 WNV)
- Hodgeman County: April 14 to October 27 (196 days, 1 WNV)
West Nile in Ellsworth County
From 1999 to 2025, CDC ArboNET counted 3 human West Nile cases in Ellsworth County (1 neuroinvasive) across 3 years. The worst was 2016 with 1; the latest was 2016.
More: how the dates are worked out · when mosquitoes go away for the winter.