Spokane Mushroom Calendar

Spokane sits in the Northern Rockies and a drier, rain-shadowed climate — about 17.4 inches of rain a year, 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 26) has usually passed. Through summer, localized storms can set off scattered fruitings, but widespread flushes are rare until more consistent rain returns in October. The first frosts around Oct 15 eventually close the main season, though hardy cool-season species hang on.

Best months September, October, and November
Ground warms ~April
Frost-free Apr 26 – Oct 15
Annual rain 17.4"
Driest July through September
Species tracked 7

What Fruits When Near Spokane

JFMAMJJASONDMorelKing BoleteOysterBear'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 Spokane

Dominant tree species within about 10 km — the hosts that shape which mushrooms grow here.

  • Ponderosa Pine63%
  • Douglas-fir37%

Species to Know Near Spokane

Shaggy Mane Shaggy Mane Peaks in October Photo: Jeremy Collison (CC BY-NC) Morel Morel Peaks in April The Prince The Prince Peaks in September and October Photo: Drew Henderson, Mushroom Observer (CC BY-SA)

Common Questions

When is mushroom season in Spokane?

Near Spokane, most mushroom activity arrives with the fall rains. The strongest months in the local observation record are September, October, and November.

When do morels fruit near Spokane?

Morel reports near Spokane 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 Spokane?

7 species show up in the observation record within about 10 miles of Spokane, including Morel, King Bolete, Oyster, Bear's Head, Blewit, The Prince, 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.

Nearby Calendars in Washington

Climate normals: NOAA NCEI U.S. Climate Normals (1991–2020). Season-onset timing is an air-temperature proxy, not a soil reading.