Mosquito season in Esmeralda County, NV: when it starts and ends

Mosquito months in Esmeralda County

In a normal year mosquito season in Esmeralda County, NV starts around April 12 and ends around October 23, about 28 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 Esmeralda County, and when

• Start tipping out standing water weekly by March 29.
• Book any yard treatment for mid April, ahead of the July peak.
• Repellent can go away after October 23.
• No West Nile cases since 2016, so bites in Esmeralda County are a nuisance; check window screens.

Esmeralda County against the rest of NV

Esmeralda County has the 3rd longest season of 17 NV counties, at 194 days against 323 in Clark County and 107 in White Pine County. Its mean temperature is 55.2°F.

• Clark County: January 20 to December 9 (323 days, 76 WNV)
• Mineral County: April 5 to November 1 (210 days, 0 WNV)
• Lyon County: April 13 to October 23 (193 days, 17 WNV)
• Lincoln County: April 20 to October 20 (183 days, 0 WNV)

West Nile in Esmeralda County

CDC ArboNET lists no human West Nile cases for Esmeralda County from 1999 to 2025.

See how the dates are worked out, and when mosquitoes go away for the winter.