In the coldest winter months, between December and February, average temperatures range from about 14°F (−10°C) to 30°F (−1°C), although temperatures do sometimes drop to below −4°F (−20°C). Average temperatures in summer, between June and August, range between 55°F (13°C) and 77°F (25°C), but temperatures can reach 86°F (30°C). Snowfall usually occurs from January to March. Rainfall can occur throughout the year, though the summer months of July and August tend to be the wettest. Stockholm receives about 18 hours of daylight in midsummer, and only six hours in midwinter.