Average Temperatures and Rainfall for Maine

Average annual temperatures for Maine (8°C/46°F) are slightly below the average for United States (13°C/55°F).

Average annual rainfall for Maine (1,287mm/51 inches) is significantly above the average for United States (1,039mm/41 inches).

What is the warmest or hottest month in Maine?

July is the hottest or warmest month in Maine, with an average maximum temperate of 26°C/79°F.

What is the coldest or coolest month in Maine?

January is the coolest or coldest month in Maine, with an average minimum temperate of -10°C/14°F.

What is the most rainy or wettest month in Maine?

October is the wettest or most rainy month in Maine, with an average rainfall of 139mm/5 inches.

What is the least rainy or driest month in Maine?

March is the driest or least rainy month in Maine, with an average rainfall of 84mm/3 inches.

What is the warmest or hottest place in Maine?

West Scarborough is the hottest or warmest place in Maine, with an average maximum temperate of 9°C/48°F.

What is the coldest place in Maine?

Bangor is the coldest place in Maine, with an average maximum temperate of 7°C/45°F.

What is the most rainy or wettest place in Maine?

Biddeford is the most rainy or wettest place in Maine, with an average annual rainfall of 1,421mm/56 inches.

What is the least rainy or driest place in Maine?

Lewiston is the least rainy or driest place in Maine, with an average annual rainfall of 1,118mm/44 inches.

Average Monthly Temperatures
Average Maximum Temperature Average Minimum Temperature
Average Monthly Rainfall
PlaceMin TempMax TempAvg TempRainfall
Augusta 3 13 8 1,118
Bangor 2 12 7 1,373
Biddeford 3 13 8 1,421
Brunswick 2 14 8 1,297
Lewiston 3 13 8 1,118
Portland 4 14 9 1,320
West Scarborough 4 14 9 1,320