Federal Way's climate is mild and temperate, with temperatures gradually warming up as the year progresses. In winter, from December to February, temperatures are quite chilly, often below freezing, but rarely extremely cold. As spring approaches in March and April, temperatures rise steadily, with April being the warmest month of the season. Summer months, June to August, bring warm to hot temperatures, with July and August being the hottest, but not excessively so. In autumn, from September to November, temperatures cool down gradually, returning to more moderate levels by winter.