Utrecht's winters are cool and unpredictable, with January temperatures often dropping below freezing but occasionally rising into double digits. February is similarly chilly, but March brings a welcome warming trend, with average highs climbing above 10°C. Spring is mild and pleasant, with April and May temperatures ranging from near-freezing to over 20°C, while summer months are generally warm and sunny, with June and July averages often reaching the mid-20s. Autumn is characterized by a gradual cooling of temperatures, with September and October highs still above 10°C but November and December experiencing a chilly return to winter conditions.