Boston - Recent September Temperatures and Rainfall





The numbers here describe what the September weather in Boston, Massachusetts was like for every year since 2010. A series of tables gives September data by year for temperature and precipitation.

They begin with average maximum and minimum temperatures in degrees Fahrenheit and Celsius. That's followed by how many really hot days occurred each September. Then there's information on how much rain actually landed this month during recent years, as well as how often Boston had wet weather.

The climate data come from weather measurements made at Boston's Logan International Airport.

Temperature Weather iconTemperature

September temperature averages by year in Boston
High °F Low °F Year High °C Low °C
75 63 2018 24 17
74 60 2017 24 15
74 61 2016 24 16
77 61 2015 25 16
74 58 2014 23 15
73 56 2013 23 14
72 58 2012 22 14
74 60 2011 24 16
77 61 2010 25 16
Number of days in September when the temperature in Boston rose to at least 70 or 90 degrees Fahrenheit
Year 70 °F
21 °C
90 °F
32 °C
2018 24 3
2017 20 0
2016 23 2
2015 23 4
2014 18 3
2013 20 1
2012 21 0
2011 22 0
2010 24 2

Rainy Weather iconRain

This table gives the total precipitation that fell on Boston during September in each year from 2010. The number of days with precipitation counts the days when rainfall amounted to 0.01 inches (0.254 millimeters) or more.

Total rainfall for September in Boston
Days Year Inches Milli­metres
11 2018 5.1 130
12 2017 3.7 95
5 2016 1.4 35
5 2015 3.9 100
4 2014 0.7 18
5 2013 2.2 56
8 2012 4.1 104
8 2011 4.4 112
5 2010 1.8 46
Reference

Jay Lawrimore. 2016. Global Summary of the Month, Version 1.0. NOAA National Centers for Environmental Information. 

Boston - Recent Years
Boston - Extremes
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