You might spend a lot of your holiday inside, but if you're planning to venture beyond the casino, looking at local weather trends is a good idea. The hottest months are usually July and August, with an average temperature of 18°C, while the coldest months are January and February, with an average of -1°C. The snowiest months in Old Orchard Beach are January, March, February and December, with each month seeing an average of 19 cm of snowfall.