September in West Richland: afternoons around 79°F, nights around 51°F. Nothing in the forecast averages argues against a doorstep delivery; any basket in the catalog travels well.
Heat (July and August). Afternoons average 85°F or more, peaking near 89°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 and December). The average low reaches 28°F in December. Jams, sauces and fresh fruit should not spend a night outside; offices, senior residences and hospitals all receive indoors.
Wettest months (December and January). Around 1.1 and 1.0 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, Richland station, 5.6 miles from West Richland. 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.