Climate & Weather in Juneau
Juneau has a real, genuinely mild-for-Alaska temperate rainforest climate: cool, wet summers (50s-60s°F, rarely the 80s) and winters cited in the 20s-30s°F -- genuinely cold by national standards but notably milder than Alaska's Interior -- with real, substantial annual precipitation and snowfall.
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Learn moreCool, Wet Summers
Juneau's summer temperatures are cited typically in the 50s and 60s°F, occasionally reaching the 70s, and rarely the 80s -- a genuinely cool, maritime summer pattern distinct from most of this project's other Tier A+ markets.
Winters Cited in the 20s-30s°F -- Cold Nationally, Mild for Alaska
Winter temperatures are cited in the 20s and 30s°F, sometimes dipping into single digits during interior cold-air outbreaks. This record discloses this precisely: genuinely cold by national standards, but notably milder than the deep sub-zero cold of Alaska's Interior cities like Fairbanks.
A Real, Documented Temperate Rainforest Climate
Juneau sits within the Tongass National Forest, the largest national forest in the United States and the world's largest remaining temperate rainforest. Average annual precipitation is cited at approximately 55-67 inches depending on citation, with a real, disclosed cross-source spread this record does not resolve to one number, and approximately 95 inches of average annual snowfall.
Real, Documented Microclimates
Microclimates are cited as genuinely significant within Juneau: downtown, influenced more by the ocean, runs warmer and notably wetter than the Mendenhall Valley just several miles away, which is influenced by the Mendenhall Glacier -- a real, disclosed within-city climate variance.
Key takeaways
- Juneau's summers run cool and wet, typically in the 50s-60s°F, rarely reaching the 80s.
- Winters run in the 20s-30s°F -- genuinely cold by national standards, but notably milder than Alaska's Interior.
- Juneau sits within the world's largest remaining temperate rainforest, with approximately 55-67 inches of annual precipitation and approximately 95 inches of snowfall.
- Real, documented microclimates mean downtown Juneau and the Mendenhall Valley experience genuinely different weather just miles apart.
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