New Orleans LA Hottest Decades

Ranked here are the hottest decades on record for New Orleans, Louisiana. The lists include decades when New Orleans had the highest average temperatures, the most hot days and the fewest cold days. These extremes are for temperatures observed at Louis Armstrong New Orleans International Airport and cover seven decades, from the 1950s to the 2010s.

That is when New Orleans 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 New Orleans
	High °F	Decade	High °C
Highest	79.3	2010s	26.3
Runner-up	78.4	2000s, 1990s	25.8

Warmest Low Temperatures

Average daily minimum temperature at New Orleans
	Low °F	Decade	Low °C
Highest	62.7	2010s	17.1
Runner-up	61.5	2000s	16.4

Most Warm Days

Total days per year on average when New Orleans had temperatures of at least 70 °F (21 °C)
	Days	Decade
Highest	288	2010s
Runner-up	281	2000s

Most Hot Days

Total days per year on average when New Orleans had temperatures of at least 90 °F (32 °C)
	Days	Decade
Highest	95	2010s
Runner-up	83	1990s

Fewest Freezing Days

Total days per year on average when New Orleans had temperatures of 32 °F (0 °C) or lower
	Days	Decade
Lowest	4	2000s
Runner-up	6	2010s, 1950s

How Much Hotter are 2010s?

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

22 more days each year with temperatures of 90 °F and higher
1.5 °F higher daily maximum temperatures (0.8 °C)
3.3 °F higher daily minimum temperatures (1.9 °C)
7 fewer days a year with freezing temperatures

New Orleans - Hottest Decades