Jacksonville - Hottest Decades





Ranked here are the hottest decades on record for Jacksonville, Florida. The lists include decades when Jacksonville had the highest average temperatures, the most hot days and the fewest cold days. These extremes are for temperatures observed at Jacksonville International Airport and cover eight decades, from the 1940s to the 2010s.

That is when Jacksonville 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 Jacksonville
High °F Decade High °C
Highest 80.3 2010s 26.8
Runner-up 79.9 1950s 26.6

Warmest Low Temperatures

Average daily minimum temperature at Jacksonville
Low °F Decade Low °C
Highest 59.6 1950s 15.3
Runner-up 59.5 1940s 15.3

Most Warm Days

Total days per year on average when Jacksonville had temperatures of at least 70 °F (21 °C)
Days Decade
Highest 298 2010s
Runner-up 293 1940s

Most Hot Days

Total days per year on average when Jacksonville had temperatures of at least 90 °F (32 °C)
Days Decade
Highest 96 1950s
Runner-up 88 2010s

Fewest Freezing Days

Total days per year on average when Jacksonville had temperatures of 32 °F (0 °C) or lower
Days Decade
Lowest 10 1940s
Runner-up 12 1990s, 1960s, 1950s
References

Current Results. 2020. Jacksonville FL 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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