Mosquito season in Wayne County, NE: when it starts and ends
Mosquito months in Wayne County
In a normal year mosquito season in Wayne County, NE starts around April 21 and ends around October 16, about 25 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Wayne 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 16.
- 3 West Nile cases since 2016 (last 2025): you should use repellent at dusk June to August, more so if over 60.
Wayne County against the rest of NE
Wayne County has the 52nd longest season of 93 NE counties, at 178 days against 200 in Richardson County and 127 in Sioux County. Its mean temperature is 48.3°F.
- Pierce County: April 21 to October 16 (178 days, 4 WNV)
- Thurston County: April 21 to October 16 (178 days, 2 WNV)
- Hayes County: April 22 to October 17 (178 days, 1 WNV)
- Keith County: April 22 to October 17 (178 days, 9 WNV)
West Nile in Wayne County
From 1999 to 2025, CDC ArboNET counted 10 human West Nile cases in Wayne County (2 neuroinvasive) across 8 years. The worst was 2015 with 2; the latest was 2025.
More: how the dates are worked out · when the season starts across the US.