Mosquito season in Juneau City and Borough, AK: when it starts and ends
Mosquito months in Juneau City and Borough
In a normal year mosquito season in Juneau City and Borough, AK starts around June 1 and ends around September 6, about 14 weeks.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
What to do in Juneau City and Borough, and when
- Start tipping out standing water weekly by May 18.
- Book any yard treatment for early June, ahead of the July peak.
- Repellent can go away after September 6.
- No West Nile cases since 2016, so bites in Juneau City and Borough are a nuisance; check window screens.
Juneau City and Borough against the rest of AK
Juneau City and Borough has the 11th longest season of 26 AK counties, at 98 days against 142 in Ketchikan Gateway Borough and 48 in Nome Census Area. Its mean temperature is 40.1°F.
- Chugach Census Area: May 31 to September 14 (107 days, 0 WNV)
- Fairbanks North Star Borough: May 20 to August 29 (101 days, 0 WNV)
- Bristol Bay Borough: June 3 to September 9 (97 days, 0 WNV)
- Hoonah-Angoon Census Area: June 3 to September 7 (95 days, 0 WNV)
West Nile in Juneau City and Borough
CDC ArboNET lists no human West Nile cases for Juneau City and Borough from 1999 to 2025.
Background: when mosquitoes go away for the winter; how the dates are worked out.