Louisville's humid subtropical climate is temperate and seasonal. Summers (June to August) are hot with cool evenings, so bring along a light jacket or coat. Spring and summer are the wettest seasons, although rainfall is fairly constant all year round.Snow usually falls in winter, allowing for winter sports. Winter temperatures (December to February) range from 27°F (-3°C) to 43°F (6°C); and average summer temperatures vary between 66°F (19°C) and 89°F (32°C).