Winters can be chilly with temperatures often dropping below freezing, so pack a warm winter coat, gloves, and a hat. Layers are key, as temperatures can fluctuate throughout the day. For the milder seasons of spring and fall, bring a mix of long-sleeved shirts, sweaters, and a waterproof jacket for potential rain showers. Summers in Pullman are generally warm, so pack lightweight clothing such as shorts, T-shirts, and comfortable walking shoes for exploring the city and nearby outdoor areas.