Mosquito season in Jewell County, KS: when it starts and ends
Mosquito months in Jewell County
In a normal year mosquito season in Jewell County, KS starts around April 20 and ends around October 23, about 27 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Jewell County, and when
- Start tipping out standing water weekly by April 6.
- Book any yard treatment for mid April, ahead of the July peak.
- Repellent can go away after October 23.
- No West Nile cases since 2016, so bites in Jewell County are a nuisance; check window screens.
Jewell County against the rest of KS
Jewell County has the 92nd longest season of 105 KS counties, at 186 days against 227 in Cherokee County and 178 in Thomas County. Its mean temperature is 51.7°F.
- Graham County: April 19 to October 22 (186 days, 2 WNV)
- Osborne County: April 19 to October 22 (186 days, 1 WNV)
- Scott County: April 20 to October 23 (186 days, 4 WNV)
- Rooks County: April 19 to October 21 (185 days, 2 WNV)
West Nile in Jewell County
From 1999 to 2025, CDC ArboNET counted 4 human West Nile cases in Jewell County (3 neuroinvasive) across 2 years. The worst was 2008 with 3; the latest was 2008.
See how the dates are worked out, and when the season starts across the US.