Good weather's always better when you're experiencing new places, so here's a little information that might be helpful: The hottest months are usually August and July, with an average temperature of 15°C, while the coldest months are February and January, with an average of -3°C. The snowiest months in Havre-aux-Maisons are February, March, January and April, with each month seeing an average of 32 cm of snowfall.