September in Corvallis: afternoons around 73°F, nights around 41°F. Nothing in the forecast averages argues against a doorstep delivery; any basket in the catalog travels well.
Heat (July). Afternoons average 85°F or more, peaking near 86°F in July. Send chocolate, cheese and fresh fruit to a workplace or a front desk in these months; baked goods, nuts, coffee, tea and spa baskets can take a doorstep drop.
Freezing nights (January, February, March, April, October, November and December). The average low reaches 18°F in December. Jams, sauces and fresh fruit should not spend a night outside; offices, senior residences and hospitals all receive indoors.
Wettest months (June and May). Around 1.7 and 1.6 inches of rain on average. Boxes are sealed, not waterproof: a covered porch or a workplace address keeps the packaging presentable.
Normals: NOAA National Centers for Environmental Information, 1991 to 2020, Western Ag Rsch Ctr station, 5.8 miles from Corvallis. Heat: average high 85°F or more. Freezing: average low 32°F or less. Snow: 2 inches or more in the month. Wettest: the two months with the most rain.