Historical Weather in Boston, MA
See 55+ years of weather history for any date in Boston going back to 1970.
Part of Massachusetts weather history
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Today in Boston Weather HistorySee records, averages, and 55+ years of data for today's date
→Monthly Climate Averages
Historical temperature and precipitation averages for Boston, MA, based on 55+ years of weather data.
Warmest MonthJulyAvg High: 84°F / Low: 64°F
Coldest MonthJanuaryAvg High: 36°F / Low: 20°F
Jan
36°/ 20°
💧 8.7"
❄️ 2.2"
Feb
39°/ 22°
💧 9.2"
❄️ 2.4"
Mar
47°/ 30°
💧 9.7"
❄️ 2.2"
Apr
57°/ 39°
💧 8.5"
❄️ 1.9"
May
68°/ 49°
💧 7.6"
❄️ 1.5"
Jun
78°/ 58°
💧 8.8"
Jul
84°/ 64°
💧 9.5"
Aug
82°/ 63°
💧 10.0"
Sep
74°/ 56°
💧 10.0"
Oct
63°/ 45°
💧 10.4"
❄️ 1.6"
Nov
52°/ 36°
💧 9.7"
❄️ 1.4"
Dec
42°/ 26°
💧 9.6"
❄️ 2.0"
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
Boston Temperature Records
- Record High: The hottest temperature ever recorded in Boston, MA is 103°F, set on July 22, 1977.
- Record Low: The coldest temperature ever recorded in Boston, MA is -14°F, set on February 14, 2016.
- Data Coverage: Based on 57 years of data from NOAA weather station: BOSTON.
All-Time Record High
103°F
July 22, 1977
All-Time Record Low
-14°F
February 14, 2016
Monthly Temperature Records in Boston
| Month | Record High | Record Low |
|---|---|---|
| January | 74°F(2020) | -13°F(1984) |
| February | 74°F(2017) | -14°F(2016) |
| March | 89°F(1998) | 0°F(1996) |
| April | 95°F(2002) | 13°F(1982) |
| May | 99°F(2017) | 24°F(2001) |
| June | 103°F(2025) | 37°F(1997) |
| July | 103°F(1977) | 44°F(1988) |
| August | 102°F(1975) | 39°F(1981) |
| September | 101°F(1973) | 31°F(1992) |
| October | 91°F(1979) | 20°F(1974) |
| November | 83°F(2024) | 2°F(1989) |
| December | 78°F(1998) | -12°F(1980) |
Boston Snow RecordsSee the top 10 snowiest days ever recorded
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