Denver - Coldest Decades





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

That is when Denver 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 Denver
High °F Decade High °C
Lowest 64.0 1980s 17.8
Runner-up 64.1 1960s 17.8

Coldest Low Temperatures

Average daily minimum temperature at Denver
Low °F Decade Low °C
Lowest 35.3 1960s 1.8
Runner-up 35.8 1970s 2.1

Fewest Warm Days

Total days per year on average when Denver had temperatures of at least 70 °F (21 °C)
Days Decade
Lowest 158 1980s, 1950s
Runner-up 159 1970s, 1950s

Fewest Hot Days

Total days per year on average when Denver had temperatures of at least 90 °F (32 °C)
Days Decade
Lowest 32 1950s
Runner-up 33 1960s

Most Freezing Days

Total days per year on average when Denver had temperatures of 32 °F (0 °C) or lower
Days Decade
Highest 162 1960s
Runner-up 159 2000s

Most Cold Days

Total days per year on average when Denver had temperatures of 0 °F (-18 °C) or lower
Days Decade
Highest 11 1960s
Runner-up 9 1980s, 1970s
References

Current Results. 2019. Denver CO 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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