Crested Butte Mushroom Calendar
Crested Butte sits in the Southern Rockies and has a drier, rain-shadowed climate, with roughly 23.8 inches of annual rainfall. The ground warms and reaches early fruiting potential around June, though at this latitude freezing nights are possible in all but the warmest weeks. The main flush around Crested Butte follows the summer monsoon: after a dry June, the thunderstorms that build in July soak the high country and set off the year's biggest fruiting. Winter then shuts the season down hard and early.
Best months
June, July, and August
Ground warms
~June
Annual rain
23.8"
Driest
June
Species tracked
4
What Fruits When Near Crested Butte
JFMAMJJASONDMorelregKing BoleteMatsutakeregChanterelleHedgehogregOysterLobsterregLion's Mane / Bear's HeadregBlewitregShaggy Mane
Shading shows when each species typically fruits within about 10 miles, not abundance. Based on iNaturalist observation trends. reg = pooled from the surrounding area where local sightings were sparse.
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)
The Forest Around Crested Butte
Dominant tree species within about 10 km — the hosts that shape which mushrooms grow here.
- Engelmann Spruce38.1%
- Quaking Aspen22.9%
- Subalpine Fir20.8%
- Lodgepole Pine13.3%
- Douglas-fir5%
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 Crested Butte
Common Questions
When is mushroom season in Crested Butte?
Near Crested Butte, mushroom season peaks in mid to late summer, when summer rain meets warm soil, and winds down as the first hard frosts arrive. The strongest months in the local observation record are June, July, and August.
When do morels fruit near Crested Butte?
Morel reports in the surrounding region peak in July. Timing tracks soil temperature, so south-facing slopes and lower elevations start earlier and higher ground runs later.
What mushrooms grow near Crested Butte?
4 species show up in the observation record within about 10 miles of Crested Butte, including King Bolete, Chanterelle, Oyster, 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.