In April, the weather in Lillehammer is typically cold. Average daily high temperature in April is about 5 degrees above zero. On average, Lillehammer has 11 partly cloudy, 9 sunny, 5 cloudy, 4 rainy, and 1 snowy day in April. The rains are usually heavy. April as well as March, May, June, and July is considered the most uncomfortable time to visit Lillehammer.