Mosquito season in Deuel County, NE: when it starts and ends

Mosquito months in Deuel County

In a normal year mosquito season in Deuel County, NE starts around April 28 and ends around October 13, about 24 weeks.

1. Jan
2. Feb
3. Mar
4. Apr
5. May
6. Jun
7. Jul
8. Aug
9. Sep
10. Oct
11. Nov
12. Dec

What to do in Deuel County, and when

• Start tipping out standing water weekly by April 14.
• Book any yard treatment for late April, ahead of the July peak.
• Repellent can go away after October 13.
• 6 West Nile cases since 2016 (last 2024): you should use repellent at dusk July to August, more so if over 60.

Deuel County against the rest of NE

Deuel County has the 75th longest season of 93 NE counties, at 168 days against 200 in Richardson County and 127 in Sioux County. Its mean temperature is 49°F.

• Rock County: April 26 to October 11 (168 days, 0 WNV)
• Garfield County: April 27 to October 12 (168 days, 1 WNV)
• Grant County: April 27 to October 12 (167 days, 0 WNV)
• Hooker County: April 28 to October 12 (167 days, 2 WNV)

West Nile in Deuel County

From 1999 to 2025, CDC ArboNET counted 18 human West Nile cases in Deuel County (1 neuroinvasive) across 9 years. The worst was 2003 with 7; the latest was 2024.

See how the dates are worked out, and reading the West Nile counts.