Average Temperatures in Boston, Massachusetts, Usa Temperature

Average Temperatures in Boston, Massachusetts, Usa

The average temperature in Boston, Massachusetts, Usa is quite mild at 10.7 degrees Celsius (51.3 degrees Fahrenheit).

The variation of average monthly temperatures is 25 °C (45°F) which is a moderate range.

The variation/ range of diurnal mean temperatures is 8.6 °C (15.4 °F).

The warmest month (July) is fairly hot having an average temperature of 23.1 degrees Celsius (73.58 degrees Fahrenheit).

The coldest month (January) is slightly cold having a mean temperature of -1.9 degrees Celsius (28.58 degrees Fahrenheit).

The annual average sea temperature is 10.1 °C (50.2 °F).

Average Temperatures Table for Boston, Massachusetts

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Average Max Temperature °C ( °F)	2.1 (35.8)	3.1 (37.6)	7.7 (45.9)	13.3 (55.9)	19.2 (66.6)	24.6 (76.3)	27.7 (81.9)	26.6 (79.9)	22.7 (72.9)	17.1 (62.8)	11.2 (52.2)	4.7 (40.5)	15 (59)
Average Temperature °C ( °F)	-1.9 (28.6)	-0.9 (30.4)	3.7 (38.7)	8.9 (48)	14.6 (58.3)	19.8 (67.6)	23.1 (73.6)	22.2 (72)	18.2 (64.8)	12.7 (54.9)	7.4 (45.3)	0.9 (33.6)	10.7 (51.3)
Average Min Temperature °C ( °F)	-5.8 (21.6)	-5 (23)	-0.4 (31.3)	4.6 (40.3)	9.9 (49.8)	15.1 (59.2)	18.4 (65.1)	17.8 (64)	13.8 (56.8)	8.3 (46.9)	3.5 (38.3)	-2.9 (26.8)	6.4 (43.6)
Average Sea or Water Temp °C ( °F)	2 (36)	1 (34)	3 (37)	7 (45)	12 (54)	16 (61)	18 (64)	19 (66)	17 (63)	13 (55)	9 (48)	4 (39)	10 (50)

Annual

Average Max Temperature °C ( °F)

2.1 (35.8)

3.1 (37.6)

7.7 (45.9)

13.3 (55.9)

19.2 (66.6)

24.6 (76.3)

27.7 (81.9)

26.6 (79.9)

22.7 (72.9)

17.1 (62.8)

11.2 (52.2)

4.7 (40.5)

15 (59)

Average Temperature °C ( °F)

-1.9 (28.6)

-0.9 (30.4)

3.7 (38.7)

8.9 (48)

14.6 (58.3)

19.8 (67.6)

23.1 (73.6)

22.2 (72)

18.2 (64.8)

12.7 (54.9)

7.4 (45.3)

0.9 (33.6)

10.7 (51.3)

Average Min Temperature °C ( °F)

-5.8 (21.6)

-5 (23)

-0.4 (31.3)

4.6 (40.3)

9.9 (49.8)

15.1 (59.2)

18.4 (65.1)

17.8 (64)

13.8 (56.8)

8.3 (46.9)

3.5 (38.3)

-2.9 (26.8)

6.4 (43.6)

Average Sea or Water Temp °C ( °F)

2 (36)

1 (34)

3 (37)

7 (45)

12 (54)

16 (61)

18 (64)

19 (66)

17 (63)

13 (55)

9 (48)

4 (39)

10 (50)

Boston, Massachusetts Average Temperatures Chart

The average temperature charts use a fixed scale so that you can easily compare temperatures between two or more locations. Simply line up the charts in separate tabs in your browser and toggle between tabs to visualise the differences. The charts have major grid lines at intervals of 10 °C on the left axis corresponding with intervals of 18 °F on the right axis. Minor gridlines mark intervals of 2.5 °C and 4.5 °F. The charts show the relationship between the Celsius and Fahrenheit measuring scales. Locations in the northern hemisphere run from January to December and in the southern hemisphere from July to June so that the middle of the chart always corresponds with the high sun period (for the hemisphere).

Average Temperatures in Boston, Massachusetts, Usa

Average Temperatures Table for Boston, Massachusetts

Boston, Massachusetts Average Temperatures Chart

Your Share Will Make An Essential Difference!