Lecco's winters are cold and unpredictable, with temperatures often dropping below freezing point in January and February, but also experiencing occasional mild days. Spring is a gradual warming period, with March and April enjoying relatively stable temperatures around 0-2°C. Summer brings warm to hot conditions, with July and August being the hottest months, though temperatures rarely exceed 32°C for an extended period. Autumn is generally cooler than summer, with September and October experiencing mild temperatures. Winter returns in December, bringing chilly days and occasional frost.