Oklahoma City has a humid subtropical climate with frequent swings in temperature. During the winter (December to February), temperatures regularly drop to between 29°F (-2°C) and 50°F (10°C). Warmer air from the south soon mitigates the very cold conditions.When it does snow, it is light. Autumn is perhaps the most pleasant season, with cool, dry, sunny days continuing until mid-October. Summers (June to August) are very hot, with average temperatures between 68°F (20°C) and 94°F (34°C).Oklahoma City has a severe weather season lasting from March to August, when thunderstorms and tornadoes are most likely. Oklahoma City is considered one of the most tornado-prone cities in the country, especially during April and May.