Boston July Weather

Averages and records for weather in Boston, Massachusetts in the month of July.
Typical Boston July Weather
1991–2020
Average daily high 82.3 °F
Average daily low 66.3 °F
Average monthly precipitation 3.3 inches
Average monthly snow none
Daily chance of precipitation 30.4%
Daily chance of snow 0%
Boston July Weather Records
1893–2024
Highest temperature 104 °F July 4, 1911
Lowest temperature 50 °F July 1, 1988
Highest daily low 83 °F July 21, 2019
Lowest daily high 60 °F July 3, 2021
Hottest average high temperature 87.2 °F 1983
Coldest average high temperature 75.0 °F 1902
Most daily precipitation 6.0 inches July 9, 1921
Most monthly precipitation 11.7 inches 1921
Most daily snow none -
Most monthly snow none -
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
July 1 80.9 64.3 98 50
July 2 81.1 64.6 98 52
July 3 81.3 64.8 102 51
July 4 81.5 65.0 104 53
July 5 81.6 65.1 101 52
July 6 81.8 65.3 101 55
July 7 82.0 65.5 99 52
July 8 82.2 65.7 99 55
July 9 82.3 65.8 99 53
July 10 82.3 65.9 99 56
July 11 82.2 65.9 100 55
July 12 82.2 66.0 97 55
July 13 82.3 66.0 97 56
July 14 82.3 66.1 100 55
July 15 82.4 66.2 98 54
July 16 82.4 66.3 99 55
July 17 82.4 66.4 98 54
July 18 82.4 66.5 98 58
July 19 82.5 66.5 99 58
July 20 82.6 66.6 99 55
July 21 82.5 66.6 102 56
July 22 82.6 66.6 103 56
July 23 82.5 66.6 100 54
July 24 82.5 66.6 100 54
July 25 82.4 66.6 95 53
July 26 82.5 66.7 96 56
July 27 82.5 66.7 97 55
July 28 82.5 66.8 99 56
July 29 82.4 66.7 97 57
July 30 82.3 66.7 98 57
July 31 82.3 66.7 98 54
Weather Station Details
Years Station Coordinates
1936–2024 Boston Logan International Airport location
1893–1935 Boston City location