Rochester - Hottest Decades





Ranked here are the hottest decades on record for Rochester, New York. The lists include decades when Rochester had the highest average temperatures, the most hot days and the fewest cold days. These extremes are for temperatures observed at the Greater Rochester International Airport and cover nine decades, from the 1930s to the 2010s.

That is when Rochester 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 Rochester
High °F Decade High °C
Highest 58.5 2010s 14.7
Runner-up 57.5 2000s 14.2

Warmest Low Temperatures

Average daily minimum temperature at Rochester
Low °F Decade Low °C
Highest 41.3 1930s 5.1
Runner-up 40.8 2010s 4.9

Most Warm Days

Total days per year on average when Rochester had temperatures of at least 70 °F (21 °C)
Days Decade
Highest 137 2010s
Runner-up 134 1970s

Most Hot Days

Total days per year on average when Rochester had temperatures of at least 90 °F (32 °C)
Days Decade
Highest 15 1940s
Runner-up 13 1950s

Fewest Freezing Days

Total days per year on average when Rochester had temperatures of 32 °F (0 °C) or lower
Days Decade
Lowest 122 1930s
Runner-up 126 2010s

How Much Hotter are 2010s?

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

  • 3 more days each year with temperatures of 90 °F and higher
  • 1.3 °F higher daily maximum temperatures (0.7 °C)
  • 1.9 °F higher daily minimum temperatures (1.0 °C)
  • 8 fewer days a year with freezing temperatures
References

Current Results. 2020. Rochester NY 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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