Other facts from our historical weather data: When is winter in Brian Head? The coldest season / winter is in the following months: January, February and December. Which is the warmest month in Brian Head? July has an average maximum temperature of 21°C (70°F) and is the warmest month of the year. Which is the coldest month in Brian Head? The coldest month is December with an average maximum temperature of -0°C (32°F). Which is the wettest month in Brian Head? December tops the wettest month list with 127mm (5 in) of rainfall. Which is the driest month in Brian Head? June is the driest month with 9mm (0.4 in) of precipitation. No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.