Salt Lake City - Hottest Decades





Ranked here are the hottest decades on record for Salt Lake City, Utah. The lists include decades when Salt Lake City had the highest average temperatures, the most hot days and the fewest cold days. These extremes are for temperatures observed at Salt Lake City's International Airport and cover seven decades, from the 1950s to the 2010s.

That is when Salt Lake City 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.

Hottest High Temperatures

Average daily maximum temperature at Salt Lake City
High °F Decade High °C
Highest 65.6 2010s 18.6
Runner-up 64.5 1990s 18.0

Warmest Low Temperatures

Average daily minimum temperature at Salt Lake City
Low °F Decade Low °C
Highest 44.3 2010s 6.8
Runner-up 42.1 2000s 5.6

Most Warm Days

Total days per year on average when Salt Lake City had temperatures of at least 70 °F (21 °C)
Days Decade
Highest 159 2010s
Runner-up 158 1960s

Most Hot Days

Total days per year on average when Salt Lake City had temperatures of at least 90 °F (32 °C)
Days Decade
Highest 65 2010s, 2000s
Runner-up 60 1960s

Fewest Freezing Days

Total days per year on average when Salt Lake City had temperatures of 32 °F (0 °C) or lower
Days Decade
Lowest 101 2010s
Runner-up 113 1980s

How Much Hotter are 2010s?

Compared with averages for the previous 50 years (1960 to 2009), the 2010s in Salt Lake City had:

  • 7 more days each year with temperatures of 90 °F and higher
  • 1.6 °F higher daily maximum temperatures (0.9 °C)
  • 3.6 °F higher daily minimum temperatures (2.0 °C)
  • 20 fewer days a year with freezing temperatures
References

Current Results. 2019. Salt Lake City UT 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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