Boston - Coldest Decades





The coldest decades on record are ranked here for Boston, Massachusetts. The lists include decades when Boston had the lowest average temperatures, the fewest hot days and the most cold days. These extremes are for temperatures observed at Boston's Logan International Airport and cover eight decades, from the 1940s to the 2010s.

That is when Boston had weather measurements that are consistent and complete enough to compare decades. Each decade comprises a standard 10-year range. For instance, the 1990s includes measurements from Jan 1, 1990 to Dec 31, 1999. An exception is the 2010s which so far includes data to the end of 2018. Links to the data behind these lists are in the References section on this page.

Coolest High Temperatures

Average daily maximum temperature at Boston
High °F Decade High °C
Lowest 58.0 1960s 14.5
Runner-up 58.9 2000s, 1980s 14.9

Coldest Low Temperatures

Average daily minimum temperature at Boston
Low °F Decade Low °C
Lowest 42.9 1940s 6.1
Runner-up 43.0 1960s 6.1

Fewest Warm Days

Total days per year on average when Boston had temperatures of at least 70 °F (21 °C)
Days Decade
Lowest 118 1960s
Runner-up 121 2000s

Fewest Hot Days

Total days per year on average when Boston had temperatures of at least 90 °F (32 °C)
Days Decade
Lowest 10 1960s
Runner-up 11 2000s

Most Freezing Days

Total days per year on average when Boston had temperatures of 32 °F (0 °C) or lower
Days Decade
Highest 103 1960s, 1940s
Runner-up 101 1980s
References

Current Results. 2019. Boston MA Temperature Averages by Decade

Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Year, Version 1.0. NOAA National Centers for Environmental Information.

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