Mosquito season in Prince of Wales-Hyder Census Area, AK: when it starts and ends

Mosquito months in Prince of Wales-Hyder Census Area

In a normal year mosquito season in Prince of Wales-Hyder Census Area, AK starts around May 24 and ends around September 26, about 18 weeks.

1. Jan
2. Feb
3. Mar
4. Apr
5. May
6. Jun
7. Jul
8. Aug
9. Sep
10. Oct
11. Nov
12. Dec

What to do in Prince of Wales-Hyder Census Area, and when

• Start tipping out standing water weekly by May 10.
• Book any yard treatment for late May, ahead of the August peak.
• Repellent can go away after September 26.
• No West Nile cases since 2016, so bites in Prince of Wales-Hyder Census Area are a nuisance; check window screens.

Prince of Wales-Hyder Census Area against the rest of AK

Prince of Wales-Hyder Census Area has the 4th longest season of 26 AK counties, at 125 days against 142 in Ketchikan Gateway Borough and 48 in Nome Census Area. Its mean temperature is 44.8°F.

• Wrangell City and Borough: May 15 to September 25 (133 days, 0 WNV)
• Skagway Municipality: May 14 to September 18 (128 days, 0 WNV)
• Petersburg Borough: May 22 to September 20 (121 days, 0 WNV)
• Haines Borough: May 18 to September 15 (120 days, 0 WNV)

West Nile in Prince of Wales-Hyder Census Area

CDC ArboNET lists no human West Nile cases for Prince of Wales-Hyder Census Area from 1999 to 2025.

Background: when mosquitoes go away for the winter; how the dates are worked out.