Corvallis Mushroom Calendar
Corvallis sits in the Willamette Valley and a damp, maritime-influenced climate, with roughly 43 inches of annual rainfall, most of it falling in the cool months from fall into spring. The ground warms and reaches early fruiting potential around March, by which point the average last frost (Apr 17) has usually passed. Summer fruitings stay confined to pockets of moisture — irrigated urban ground can be one — and the real abundance arrives with the fall rains in September. The first frosts around Oct 28 eventually close the main season, though hardy cool-season species hang on.
Best months
April, October, and November
Ground warms
~March
Frost-free
Apr 17 – Oct 28
Annual rain
43"
Driest
July and August
Species tracked
10
What Fruits When Near Corvallis
JFMAMJJASONDMorelKing BoleteChanterelleHedgehogOysterLobsterBear's HeadBlewitThe PrinceShaggy 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)
The Forest Around Corvallis
Dominant tree species within about 10 km — the hosts that shape which mushrooms grow here.
- Douglas-fir49%
- Bigleaf Maple24.1%
- Oregon White Oak18.8%
- Western Hemlock5.5%
- Red Alder2.6%
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 Corvallis
Common Questions
When is mushroom season in Corvallis?
Near Corvallis, most mushroom activity arrives with the fall rains. The strongest months in the local observation record are April, October, and November.
When do morels fruit near Corvallis?
Morel reports near Corvallis peak in April. Timing tracks soil temperature, so south-facing slopes and lower elevations start earlier and higher ground runs later.
What mushrooms grow near Corvallis?
10 species show up in the observation record within about 10 miles of Corvallis, including Morel, King Bolete, Chanterelle, Hedgehog, Oyster, Lobster, Bear's Head, Blewit. 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.
Nearby Calendars in Oregon
- Bend Mushroom Calendar
- Brookings Mushroom Calendar
- Cascade Locks Mushroom Calendar
- Detroit Mushroom Calendar
- Eugene Mushroom Calendar
- Klamath Falls Mushroom Calendar
- La Grande Mushroom Calendar
- Lincoln City Mushroom Calendar
- Medford Mushroom Calendar
- Newport Mushroom Calendar
- Portland Mushroom Calendar
- Salem Mushroom Calendar