Medford Mushroom Calendar

Medford sits in the Klamath Mountains/California High North Coast Range and a drier, rain-shadowed climate — about 18.4 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 March, by which point the average last frost (Apr 8) has usually passed. Summer dries out — June through September typically see under an inch of rain — and fruiting goes quiet until the rains return in October, kicking off the year's main flush. The first frosts around Oct 29 eventually close the main season, though hardy cool-season species hang on.