Olympia Mushroom Calendar
Olympia sits in the Puget Lowland and a damp, maritime-influenced climate, with roughly 50.6 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 April, by which point the average last frost (Apr 29) 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 14 eventually close the main season, though hardy cool-season species hang on.
Best months
April, October, and November
Ground warms
~April
Frost-free
Apr 29 – Oct 14
Annual rain
50.6"
Driest
July and August
Species tracked
11
What Fruits When Near Olympia
JFMAMJJASONDMorelKing BoleteMatsutakeChanterelleHedgehogOysterLobsterBear'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 Olympia
Dominant tree species within about 10 km — the hosts that shape which mushrooms grow here.
- Douglas-fir37.3%
- Red Alder33.6%
- Western Hemlock15.8%
- Bigleaf Maple13.3%
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 Olympia
Common Questions
When is mushroom season in Olympia?
Near Olympia, 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 Olympia?
Morel reports near Olympia 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 Olympia?
11 species show up in the observation record within about 10 miles of Olympia, including Morel, King Bolete, Matsutake, Chanterelle, Hedgehog, Oyster, Lobster, Bear's Head. 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 Washington
- Bellingham Mushroom Calendar
- Cle Elum Mushroom Calendar
- Darrington Mushroom Calendar
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- Everett Mushroom Calendar
- Greenwater Mushroom Calendar
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- Long Beach Mushroom Calendar
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