Boston MA Temperature Averages by Decade

Summarized here are the temperatures extending over eight decades at Boston, Massachusetts. Listed for every decade from the 1940s to the 2010s are averages for maximum and minimum daily temperatures in degrees Fahrenheit and Celsius. That's followed with information on the number of hot and cold days.

Each decade covers a standard 10-year range. For instance the 1990s includes weather measurements from Jan 1, 1990 to Dec 31, 1999. All the temperature data were collected at Boston's Logan International Airport.

High Temperature for Each Decade

Average daily maximum temperature at Boston
High °F	Decade	High °C
60.3	2010s	15.7
58.9	2000s	15.0
59.6	1990s	15.3
58.9	1980s	14.9
59.3	1970s	15.2
58.0	1960s	14.5
59.5	1950s	15.3
59.0	1940s	15.0

Low Temperature for Each Decade

Average daily minimum temperature at Boston
Low °F	Decade	Low °C
45.4	2010s	7.4
44.2	2000s	6.8
44.3	1990s	6.8
43.5	1980s	6.4
43.9	1970s	6.6
43.0	1960s	6.1
43.9	1950s	6.6
42.9	1940s	6.1

Hot Days per Decade

Total days per year on average when the temperature in Boston reached at least 70 or 90 °F
Decade	70 °F 21 °C	90 °F 32 °C
2010s	131	16
2000s	121	11
1990s	123	14
1980s	122	14
1970s	126	14
1960s	118	10
1950s	125	13
1940s	126	13

Cold Days per Decade

Total days per year on average when the temperature in Boston dropped to 0 or 32 °F or lower
Decade	0 °F -18 °C	32 °F 0 °C
2010s	1	92
2000s	1	95
1990s	0	90
1980s	1	101
1970s	1	97
1960s	1	103
1950s	1	91
1940s	1	103

Boston - Temperature Averages by Decade

High Temperature for Each Decade

Low Temperature for Each Decade

Hot Days per Decade

Cold Days per Decade

Reference

More on Temperatures in Boston