Mosquito season in Fairbanks North Star Borough, AK: when it starts and ends
Mosquito months in Fairbanks North Star Borough
In a normal year mosquito season in Fairbanks North Star Borough, AK starts around May 20 and ends around August 29, about 14 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Fairbanks North Star Borough, and when
- Start tipping out standing water weekly by May 6.
- Book any yard treatment for mid May, ahead of the July peak.
- Repellent can go away after August 29.
- No West Nile cases since 2016, so bites in Fairbanks North Star Borough are a nuisance; check window screens.
Fairbanks North Star Borough against the rest of AK
Fairbanks North Star Borough has the 10th longest season of 26 AK counties, at 101 days against 142 in Ketchikan Gateway Borough and 48 in Nome Census Area. Its mean temperature is 29.2°F.
- Kenai Peninsula Borough: May 28 to September 12 (107 days, 0 WNV)
- Chugach Census Area: May 31 to September 14 (107 days, 0 WNV)
- Juneau City and Borough: June 1 to September 6 (98 days, 0 WNV)
- Bristol Bay Borough: June 3 to September 9 (97 days, 0 WNV)
West Nile in Fairbanks North Star Borough
CDC ArboNET lists no human West Nile cases for Fairbanks North Star Borough from 1999 to 2025.
More: how the dates are worked out · when mosquitoes go away for the winter.