Boston - Recent May Temperatures and Rainfall





The numbers here describe what the May weather in Boston, Massachusetts was like for every year since 2010. A series of tables gives May 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 May. 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

May temperature averages by year in Boston
High °F Low °F Year High °C Low °C
63 50 2017 17 10
67 51 2016 19 10
73 51 2015 23 11
66 51 2014 19 11
67 50 2013 20 10
67 54 2012 19 12
66 53 2011 19 11
72 54 2010 22 12
Number of days in May when the temperature in Boston rose to at least 70 or 90 degrees Fahrenheit
Year 70 °F
21 °C
90 °F
32 °C
2017 4 3
2016 14 1
2015 19 0
2014 8 0
2013 13 1
2012 13 0
2011 11 0
2010 19 1

Rainy Weather iconRain

This table gives the total precipitation that fell on Boston during May 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 May in Boston
Days Year Inches Milli­metres
14 2017 3.5 88
6 2016 2.8 72
2 2015 1.2 31
7 2014 2.9 73
6 2013 3.2 82
7 2012 3.4 87
8 2011 3.2 82
4 2010 2.9 74
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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