Boston Weather In September

The record high September temperature in Boston Massachusetts for the last 54 years was 24 degrees Celsius, most recently measured on September 7, 1998, while the average high temperature is 22. The coldest day reported in Boston in September for the past 54 years was -27 most recently encountered on September 30, 1933, while the typical low recorded temperature is 14.

US National Weather Service historical Boston September Weather data records that on September 20, 1942, the high temperature did not exceed -13 degrees Celsius, the lowest high measured in Boston in the past 54 years. NWS data also shows that on September 1, 2006, the lowest measured temperature on that day did not drop below 15 degrees, the highest low temperature measured in Boston in the last 54 years.

National Weather Service data shows that the high temperature in Boston on September First averages 7 degrees Celsius and the high on the final day of September averages 3 degrees. The low measured temperature in Boston on September First averages -1 degrees and the low on the last day of the month averages -4 degrees.

Boston usually receives an average of 8.81 centimeters of precipitation during September. The most rain recorded in a single day, as shown by September Boston Weather data, was 10.69 centimeters on September 12, 1992.