June in Muswellbrook is the coldest month of the year. In June, the weather in Muswellbrook is typically warm. Average daily high temperature in June is about 14 degrees above zero. On average, Muswellbrook has 14 sunny, 10 partly cloudy, 4 rainy, and 2 cloudy days in June. The rains are usually light. June as well as {{month_nom: February}}, and {{month_nom: February}} is considered the most uncomfortable time to visit Muswellbrook.