Mosquito season in Saunders County, NE: when it starts and ends
Mosquito months in Saunders County
In a normal year mosquito season in Saunders County, NE starts around April 15 and ends around October 20, about 27 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Saunders County, and when
- Start tipping out standing water weekly by April 1.
- Book any yard treatment for mid April, ahead of the July peak.
- Repellent can go away after October 20.
- 14 West Nile cases since 2016: you should wear EPA-registered repellent at dusk June to August, and check NE spray notices.
Saunders County against the rest of NE
Saunders County has the 19th longest season of 93 NE counties, at 189 days against 200 in Richardson County and 127 in Sioux County. Its mean temperature is 50.2°F.
- Lancaster County: April 15 to October 22 (190 days, 91 WNV)
- Dodge County: April 15 to October 20 (189 days, 29 WNV)
- Washington County: April 15 to October 21 (189 days, 17 WNV)
- Otoe County: April 16 to October 22 (189 days, 3 WNV)
West Nile in Saunders County
From 1999 to 2025, CDC ArboNET counted 55 human West Nile cases in Saunders County (13 neuroinvasive) across 18 years. The worst was 2003 with 19; the latest was 2025.
See how the dates are worked out, and reading the West Nile counts.