Here's a promise: at least once during your visit to Boston, somebody will say 'If you don't like the weather, wait a minute!' With the ocean to the east and mountains to the north and west, Boston's weather is subject to extremes.
Besides the day-to-day (or minute-to-minute) fluctuations, Boston enjoys wonderful seasonal variations. Spring brings temperate weather and blooming trees, usually in April. This mild weather often lasts until mid-June, but it is also accompanied by plenty of rain. July and August are hot and humid.
Autumn is Boston's most glorious season. Weather usually remains warm throughout September, while cooler temperatures in October bring out the colorful foliage. Winter lasts too long for most people's tastes, stretching from December to April. During this period, visitors can expect temperatures below freezing and plenty of snow.