Maine - Climate



Maine has three climatic regions: the northern interior zone, comprising roughly the northern half of the state, between Quebec and New Brunswick; the southern interior zone; and the coastal zone. The northern zone is both drier and cooler in all four seasons than either of the other zones, while the coastal zone is more moderate in temperature year-round than the other two.

The annual mean temperature in the northern zone is about 40°F (5°C); in the southern interior zone, 44°F (7°C); and in the coastal zone, 46°F (8°C). Record temperatures for the state are –48°F (–44°C), registered at Van Buren on 19 January 1925, and 105°F (41°C) at North Bridgton on 10 July 1911. The mean annual precipitation increases from 40.2 in (102 cm) in the north to 41.5 in (105 cm) in the southern interior and 45.7 in (116 cm) on the coast. Average annual precipitation at Portland (1971–2000) was 45.8 in (116 cm). Average annual snowfall is 78 in (198 cm).



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