Salt Lake City UT 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. 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	65.3	2010s	18.5
Runner-up	64.5	1990s	18.0

Warmest Low Temperatures

Average daily minimum temperature at Salt Lake City
	Low °F	Decade	Low °C
Highest	44.2	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	158	1960s
Runner-up	157	2010s

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	103	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
1.4 °F higher daily maximum temperatures (0.8 °C)
3.5 °F higher daily minimum temperatures (2.0 °C)
19 fewer days a year with freezing temperatures

Salt Lake City - Hottest Decades