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

Mosquito months in Storey County

In a normal year mosquito season in Storey County, NV starts around April 26 and ends around October 23, about 26 weeks.

What to do in Storey 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 23.
No West Nile cases since 2016, so bites in Storey County are a nuisance; check window screens.

Storey County against the rest of NV

Storey County has the 7th longest season of 17 NV counties, at 180 days against 323 in Clark County and 107 in White Pine County. Its mean temperature is 51.7°F.

Lincoln County: April 20 to October 20 (183 days, 0 WNV)
Carson City: April 20 to October 18 (181 days, 6 WNV)
Nye County: April 25 to October 11 (169 days, 2 WNV)
Washoe County: April 28 to October 13 (168 days, 31 WNV)

West Nile in Storey County

CDC ArboNET lists no human West Nile cases for Storey County from 1999 to 2025, though virus turned up in birds, mosquitoes or horses in 2 of those years.

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