San Antonio - Coldest Decades





The coldest decades on record are ranked here for San Antonio, Texas. The lists include decades when San Antonio had the lowest average temperatures, the fewest hot days and the most cold days. These extremes are for temperatures observed at San Antonio's International Airport and cover seven decades, from the 1950s to the 2010s.

That is when San Antonio 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. Links to the data behind these lists are in the References section on this page.

Coolest High Temperatures

Average daily maximum temperature at San Antonio
High °F Decade High °C
Lowest 78.9 1970s 26.1
Runner-up 79.3 1960s 26.3

Coldest Low Temperatures

Average daily minimum temperature at San Antonio
Low °F Decade Low °C
Lowest 57.5 1970s 14.2
Runner-up 57.6 1960s 14.2

Fewest Warm Days

Total days per year on average when San Antonio had temperatures of at least 70 °F (21 °C)
Days Decade
Lowest 276 1960s
Runner-up 280 1980s

Fewest Hot Days

Total days per year on average when San Antonio had temperatures of at least 90 °F (32 °C)
Days Decade
Lowest 94 1970s
Runner-up 113 1960s

Most Freezing Days

Total days per year on average when San Antonio had temperatures of 32 °F (0 °C) or lower
Days Decade
Highest 28 1970s
Runner-up 26 1960s
References

Current Results. 2020. San Antonio TX 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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