Mosquito season in Boyd County, NE: when it starts and ends
Mosquito months in Boyd County
In a normal year mosquito season in Boyd County, NE starts around April 26 and ends around October 14, about 24 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Boyd County, and when
- Start tipping out standing water weekly by April 12.
- Book any yard treatment for late April, ahead of the July peak.
- Repellent can go away after October 14.
- 1 West Nile case since 2016 (last 2019): you should use repellent at dusk July to August, more so if over 60.
Boyd County against the rest of NE
Boyd County has the 65th longest season of 93 NE counties, at 171 days against 200 in Richardson County and 127 in Sioux County. Its mean temperature is 47.6°F.
- Lincoln County: April 25 to October 15 (173 days, 30 WNV)
- Loup County: April 25 to October 13 (171 days, 0 WNV)
- Holt County: April 25 to October 13 (170 days, 12 WNV)
- Valley County: April 25 to October 12 (170 days, 5 WNV)
West Nile in Boyd County
From 1999 to 2025, CDC ArboNET counted 9 human West Nile cases in Boyd County (1 neuroinvasive) across 5 years. The worst was 2003 with 5; the latest was 2019.
See how the dates are worked out, and when the season starts across the US.