If you’re hoping to get lost in the rain on your romantic getaway, take a look at these details about year-round temperatures in Chama: The hottest months are usually July and June, with an average temperature of 15°C, while the coldest months are January and December, with an average of -6°C. The snowiest months in Chama are January, March, February and April, with each month seeing an average of 21 cm of snowfall.