Mosquito season in Rush County, KS: when it starts and ends
Mosquito months in Rush County
In a normal year mosquito season in Rush County, KS starts around April 21 and ends around October 19, about 26 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Rush County, and when
- Start tipping out standing water weekly by April 7.
- Book any yard treatment for late April, ahead of the July peak.
- Repellent can go away after October 19.
- No West Nile cases since 2016, so bites in Rush County are a nuisance; check window screens.
Rush County against the rest of KS
Rush County has the 100th longest season of 105 KS counties, at 181 days against 227 in Cherokee County and 178 in Thomas County. Its mean temperature is 53.6°F.
- Cheyenne County: April 20 to October 18 (181 days, 2 WNV)
- Hamilton County: April 21 to October 19 (181 days, 3 WNV)
- Wichita County: April 23 to October 21 (181 days, 0 WNV)
- Greeley County: April 23 to October 19 (179 days, 2 WNV)
West Nile in Rush County
From 1999 to 2025, CDC ArboNET counted 5 human West Nile cases in Rush County (3 neuroinvasive) across 3 years. The worst was 2013 with 2; the latest was 2013.
More: how the dates are worked out · when mosquitoes go away for the winter.