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Temperature Graph. °F. 80° 74° 68° 62° 56° Sep. *1 *2 *3 *4 *5 *6 *7 *8 *9 *10 *11 *12 *13 *14 *15 *16 *17 *18 *19 *20 *21 *22 *23 *24 *25 *26 *27 *28 *29 *30. Avg. Hi. Avg. Lo.
In Boston, September is characterized by high temperatures and moderate rainfall. Daytime temperatures hover around 24°C , while nights can cool down to about 15°C . Boston in September usually receives moderate rainfall, averaging around 79 mm for the month. It's the month with the least rainfall.
September Weather in Boston Massachusetts, United States. Daily high temperatures decrease by 9°F, from 76°F to 67°F, rarely falling below 58°F or exceeding 86°F. Daily low temperatures decrease by 9°F, from 62°F to 53°F, rarely falling below 44°F or exceeding 69°F.
The average temperature in Boston in September for a typical day ranges from a high of 75°F (24°C) to a low of 58°F (14°C). Some would describe it as mildly cool with a gentle breeze. For comparison, the hottest month in Boston, July, has days with highs of 82°F (28°C) and lows of 65°F (18°C).
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Usually every day in September warms to over 60 degrees Fahrenheit (16 degrees Celsius) in Boston. The city averages 1 day this month when the thermometer reaches into the 90s °F (over 32 °C). Temperatures above 100 °F (38 °C) are not expected here during September. This month the thermometer dips to 50 °F (10 °C) or below on an average of three ni...
Half the time, the Boston receives 1.9 to 4.5 inches (48 to 115 mm) of rainfall in September. One in four years has drier weather, while another one in four is wetter. None of the precipitation falls as snow.
The sun's rays reach the ground in Boston during 63 percent of daylight hours on average in September, for a total of 235 hours in the month. Typically on 10 days this month the sky is mainly clear, with at most 30 percent cloud cover. Sunlight in September at Boston lasts for 12 hours and 26 minutes a day on average. The longest day of the month i...
The relative humidity in Boston during September usually peaks at 82 percent in the morning then drops to 59 percent by early afternoon. September is Boston's most humid month.
There's a 2 percent probability that a hurricane will approach within 100 miles (165 km) of Boston during September. The chance of a major hurricane (category 3 to 5) reaching the area is 1 percent.
Nov 20, 2020 · Updated on 11/20/20. Fact checked by. Jillian Dara. TripSavvy / Violet Smirnova. Boston is known for having four distinct seasons, with noticeable differences between spring, summer, fall, and winter. When you visit will depend on what you’re looking to see in the city, and your preference on weather will be a factor in that decision.
