July weather forecast in Peterborough

July in Peterborough is the sunniest and the warmest month of the year. In July, the weather in Peterborough is typically warm. Average daily high temperature in July is about 24 degrees above zero. On average, Peterborough has 12 rainy, 10 sunny, 7 partly cloudy, and 2 cloudy days in July. The rains are usually heavy.