Zagreb's winters are chilly, with temperatures often below freezing and averaging around 3°C in January. Spring brings mild temperatures, ranging from 11°C in April to 28°C in May, with a noticeable warming trend throughout the season. Summer is warm to hot, with temperatures frequently reaching over 30°C in June, July, and August, while autumn cools down again, with temperatures similar to those of spring. In winter, the lowest temperature recorded was -8°C in February, whereas summer highs have reached up to 37°C in August. The overall temperature trend shows a moderate increase from around 3°C in January to 25°C in June and July, before gradually decreasing back down towards the winter months.