Summers range from mild to hot with occasional afternoon thunderstorms and high temperatures reaching 90 °F (32 °C) on 38 days annually, and occasionally 100 °F (38 °C). December, the coldest month of the year, has a daily average temperature of 29.9 °F (−1.2 °C). Winters range from mild to occasional bitter cold, consisting of periods of snow and very low temperatures alternating with periods of relatively milder weather. In winter, highs can reach up to 65 °F (18 °C), but can also sometimes fail to reach 0 °F (−18 °C).