Mosquito season in Lincoln County, OR: when it starts and ends
Mosquito months in Lincoln County
In a normal year mosquito season in Lincoln County, OR starts around April 27 and ends around November 8, about 28 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Lincoln County, and when
- Start tipping out standing water weekly by April 13.
- Book any yard treatment for late April, ahead of the August peak.
- Repellent can go away after November 8.
- No West Nile cases since 2016, so bites in Lincoln County are a nuisance; check window screens.
Lincoln County against the rest of OR
Lincoln County has the 8th longest season of 36 OR counties, at 195 days against 225 in Curry County and 95 in Klamath County. Its mean temperature is 51.4°F.
- Yamhill County: April 10 to October 29 (202 days, 0 WNV)
- Lane County: April 16 to October 29 (197 days, 1 WNV)
- Clatsop County: April 22 to November 1 (193 days, 0 WNV)
- Washington County: April 16 to October 24 (191 days, 0 WNV)
West Nile in Lincoln County
CDC ArboNET lists no human West Nile cases for Lincoln 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.