Corona's winter months, January and December, are quite mild with temperatures ranging from just above freezing to the mid-20s. Spring arrives in March, but temperatures remain relatively cool, only slowly warming up as the season progresses through April and May. Summer is hot, with June and July being the warmest months, with temperatures often reaching over 35 degrees Celsius. Autumn brings a slight cooling, but temperatures still linger in the mid-20s, before dropping off again as winter returns.