The numbers here tell you how hot and cold the weather usually is in Minneapolis, Minnesota during each month of the year. The average high and low temperatures are listed below monthly and annually for Minneapolis, in both degrees Fahrenheit and Celsius. Maximums and minimums are only part of the temperature picture.
A rooftop antenna, while well-suited for receiving television signals, can also draw lightning in inclement weather. A lightning strike to a TV rooftop antenna can be dangerous, both to the antenna as well as to the electronic equipment connected to it.
Franklin suggested that a lightning rod protects a building by one of two methods. First, the rod serves to prevent a charged cloud from releasing a bolt of lightning. And second, the lightning rod serves to safely divert the lightning to the ground in event that the cloud does discharge its lightning via a bolt.