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
73 62 2023 23 16
72 58 2022 22 15
77 63 2021 25 17
74 57 2020 23 14
76 60 2019 24 16
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
2023 19 1
2022 21 0
2021 28 0
2020 23 0
2019 25 1
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 (0.3 millimeters) or more.

Total rainfall for September in Boston
Days Year Inches Milli­metres
12 2023 3.8 96
8 2022 2.6 66
13 2021 7.5 190
5 2020 1.0 25
8 2019 2.2 55
11 2018 5.1 130
12 2017 3.7 95
11 2016 1.4 35
8 2015 3.9 100
6 2014 0.7 18
7 2013 2.2 56
11 2012 4.1 104
11 2011 4.4 112
9 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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