April in Medicine Hat is the rainiest month of the year. In April, the weather in Medicine Hat is typically warm. Average daily high temperature in April is about 10 degrees above zero. On average, Medicine Hat has 10 rainy, 9 partly cloudy, 6 sunny, and 5 cloudy days in April. The rains are usually moderate. April as well as March and November is considered the most uncomfortable time to visit Medicine Hat.