Weather will likely play an important role when you plan your trip to Green Gables, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually August and July, with an average temperature of 17°C, while the coldest months are February and January, with an average of -3°C. The snowiest months in Green Gables are February, January, March and December, with each month seeing an average of 137 cm of snowfall.