Boston

The tables below display average monthly climate and weather indicators in Boston Massachusetts. Temperature by: Fahrenheit / Centigrade Boston Temperature Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Avg. Temperature -1.9 -0.9 3.7 8.9 14.6 19.8 23.1 22.2 18.2 12.7 7.4 0.9 10.7 Avg. Max Temperature 2.1 3.1 7.7 13.3 19.2 24.6 27.7 26.6 22.7 17.1 11.2 4.7 15.0 Avg. Min Temperature -5.8 -5.0 -0.4 4.6 9.9 15.1 18.4 17.8 13.8 8.3 3.5 -2.9 6.4 Days with Max Temp of 32 C or Higher 0.0 0.0 0.0 < 0.5 < 0.5 3.0 6.0 3.0 1.0 0.0 0.0 0.0 12.0 Days with Min Temp Below Freezing 26.0 23.0 17.0 2.0 0.0 0.0 0.0 0.0 0.0 0.0 7.0 21.0 97.0     Boston Heating and Cooling Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Heating Degree Days 1128 972 818 507 221 32.0 0.0 6.0 72.0 321 591 973 5641 Cooling Degree Days 0.0 0.0 0.0 0.0 10.0 113 264 220 66.0 5.0 0.0 0.0 678     Boston Precipitation Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precipitation (inches) 3.6 3.6 3.7 3.6 3.2 3.1 2.8 3.2 3.1 3.3 4.2 4.0 41.5 Days with Precipitation 0.01 inch or More 12.0 10.0 12.0 11.0 12.0 11.0 9.0 10.0 9.0 9.0 11.0 12.0 127 Monthly Snowfall (inches) 12.8 11.8 8.0 0.9 0.0 0.0 0.0 < 0.05 0.0 0.0 1.3 7.6 42.4     Other Boston Weather Indicators Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Average Wind Speed 13.8 13.9 13.7 13.1 12.1 11.4 11.0 10.8 11.3 11.9 12.8 13.5 12.4 Clear Days 9.0 8.0 8.0 7.0 6.0 7.0 7.0 9.0 10.0 11.0 8.0 9.0 98.0 Partly Cloudy Days 7.0 7.0 8.0 8.0 10.0 10.0 12.0 11.0 8.0 8.0 7.0 7.0 103 Cloudy Days 15.0 13.0 15.0 15.0 15.0 13.0 12.0 11.0 12.0 12.0 15.0 15.0 164 Percent of Possible Sunshine 53.0 56.0 57.0 56.0 58.0 63.0 65.0 65.0 63.0 60.0 50.0 52.0 58.0 Avg. Relative Humidity 51.0 63.0 63.0 63.0 63.0 66.0 66.0 66.5 69.0 68.5 66.0 64.5 65.5

Weather information for other cities in Massachusetts • Blue Hill Weather • Worcester Weather