Mosquito season in Dundy County, NE: when it starts and ends
Mosquito months in Dundy County
In a normal year mosquito season in Dundy County, NE starts around April 19 and ends around October 19, about 26 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Dundy County, and when
- Start tipping out standing water weekly by April 5.
- Book any yard treatment for mid April, ahead of the July peak.
- Repellent can go away after October 19.
- 1 West Nile case since 2016 (last 2023): you should use repellent at dusk June to August, more so if over 60.
Dundy County against the rest of NE
Dundy County has the 36th longest season of 93 NE counties, at 183 days against 200 in Richardson County and 127 in Sioux County. Its mean temperature is 51.5°F.
- Butler County: April 18 to October 18 (183 days, 11 WNV)
- Gosper County: April 18 to October 19 (183 days, 0 WNV)
- Franklin County: April 19 to October 19 (183 days, 2 WNV)
- Nuckolls County: April 19 to October 19 (183 days, 3 WNV)
West Nile in Dundy County
From 1999 to 2025, CDC ArboNET counted 11 human West Nile cases in Dundy County (3 neuroinvasive) across 4 years. The worst was 2003 with 7; the latest was 2023.
Background: when the season starts across the US; how the dates are worked out.