Really? Assuming similar elevation, I'd expect the temperature of two points 60 miles apart on earth to average the same with fairly low standard deviation.
Is there something specific to your geography that leads you to assume the temperature 60 miles away wouldn't "be anywhere close to yours"?
In the San Francisco Bay Area, for example, the temperature commonly varies dramatically between some places which are a quarter mile apart. And one side of a hill can be persistently foggy while the other side is usually sunny.
Is there something specific to your geography that leads you to assume the temperature 60 miles away wouldn't "be anywhere close to yours"?