boston average weather by month
Boston: Annual Weather Averages. July is the hottest month in Boston with an average temperature of 24Â°C (74Â°F) and the coldest is January at -2Â°C (29Â°F) with the most daily sunshine hours at 10 in July. The wettest month is April with an average of 100mm of rain.
Nearly every October day warms to over 50 Â°F (10 Â°C) in Boston. The city averages just 1 day this month when the thermometer reaches into the 80s Â°F (over 27 Â°C). Temperatures above 90 Â°F (32 Â°C) are not expected here during October.