Mosquito season in Nye County, NV: when it starts and ends
Mosquito months in Nye County
In a normal year mosquito season in Nye County, NV starts around April 25 and ends around October 11, about 24 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Nye County, and when
- Start tipping out standing water weekly by April 11.
- Book any yard treatment for late April, ahead of the July peak.
- Repellent can go away after October 11.
- 2 West Nile cases since 2016 (last 2025): you should use repellent at dusk July to August, more so if over 60.
Nye County against the rest of NV
Nye County has the 8th longest season of 17 NV counties, at 169 days against 323 in Clark County and 107 in White Pine County. Its mean temperature is 51.6°F.
- Carson City: April 20 to October 18 (181 days, 6 WNV)
- Storey County: April 26 to October 23 (180 days, 0 WNV)
- Washoe County: April 28 to October 13 (168 days, 31 WNV)
- Douglas County: May 11 to October 13 (155 days, 12 WNV)
West Nile in Nye County
From 1999 to 2025, CDC ArboNET counted 10 human West Nile cases in Nye County (6 neuroinvasive) across 6 years. The worst was 2005 with 3; the latest was 2025.
See how the dates are worked out, and when mosquitoes go away for the winter.