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 Wasilla: The hottest months are usually July and June, with an average temperature of 12°C, while the coldest months are January and December, with an average of -10°C. The snowiest months in Wasilla are November, December, January and February, with each month seeing an average of 93 cm of snowfall.