Juneau Mushroom Calendar
Juneau has one of the wetter corners of the region — about 89.6 inches of rain a year. The ground warms and reaches early fruiting potential around May, by which point the average last frost (Apr 20) has usually passed. Rain barely lets up even at the height of summer, so something is usually fruiting, though the heaviest push still comes with the fall rains. The first frosts around Oct 22 eventually close the main season, though hardy cool-season species hang on.
Best months
August, September, and October
Ground warms
~May
Frost-free
Apr 20 – Oct 22
Annual rain
89.6"
Species tracked
6
What Fruits When Near Juneau
JFMAMJJASONDMorelKing BoleteChanterelleHedgehogBear's HeadShaggy Mane
Shading shows when each species typically fruits within about 10 miles, not abundance. Based on iNaturalist observation trends.
The Shape of the Season
All species combined — local observations within about 10 miles, by month.
Weather Through the Year
Average daily high–low (°F)
Average monthly precipitation (inches)
Track the Season as It Happens
This calendar shows typical timing. A free Salish Mushrooms account adds live environmental layers — soil moisture, soil temperature, snow cover, and recent precipitation — on the Forayz map.
Species to Know Near Juneau
Common Questions
When is mushroom season in Juneau?
Near Juneau, most mushroom activity arrives with the fall rains. The strongest months in the local observation record are August, September, and October.
When do morels fruit near Juneau?
Morel reports near Juneau peak in May. Timing tracks soil temperature, so south-facing slopes and lower elevations start earlier and higher ground runs later.
What mushrooms grow near Juneau?
6 species show up in the observation record within about 10 miles of Juneau, including Morel, King Bolete, Chanterelle, Hedgehog, Bear's Head, Shaggy Mane. The calendar above shows when each one typically fruits.
Want live conditions instead of climatology? The Forayz map layers soil moisture, soil temperature, snow cover, and recent burns over the same area.