Juneau City and Borough Climate
Juneau City and Borough, Alaska
Avg Annual Temp
41.9°F
Annual Precip
92.5"
Annual Snowfall
81.9"
Extreme Heat Days
0
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Juneau City and Borough Weather
A Cool, Wet Maritime Capital
Juneau's 41.9°F average temperature sits roughly 12 degrees below the national median. As a temperate rainforest, it receives a staggering 92.5 inches of annual precipitation.
Milder and Wetter than Average Alaska
Juneau is much warmer than the 35.9°F state average but far wetter than the 54.8-inch state precipitation mean. Its coastal position keeps January averages at a relatively manageable 27.8°F.
Consistent with its Southeast Neighbors
Juneau shares a 41.9°F average temperature with Hoonah-Angoon, though it is slightly drier. It is significantly warmer and wetter than the interior Fairbanks North Star Borough.
Cool Summers and Snowy Winters
Summer temperatures average just 55.5°F, with zero days reaching 90°F. The city sees 81.9 inches of annual snowfall, adding to the high total precipitation that falls year-round.
Prepare for Dampness and Slush
Residents need high-quality rain shells and boots for the 92.5 inches of annual rain. Winter driving requires tires suited for heavy slush rather than just dry ice, given the 29.2°F winter average.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.