New Orleans Temperatures: Averages by Month





The numbers here tell you how hot and cold the weather usually is in New Orleans, Louisiana during each month of the year.

The average high and low temperatures are listed below, monthly and annually for New Orleans, in both degrees Fahrenheit and Celsius.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 70, 80 or 90 °F each month in New Orleans, scroll down farther. There are also monthly and yearly counts of nights with warm temperatures days and details on how often it gets cold in New Orleans.

The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.

10-year temperature averages for New Orleans, 2010 to 2019
High °F Low °F   High °C Low °C
62 44 January 17 7
68 48 February 20 9
74 56 March 23 14
79 62 April 26 17
86 69 May 30 21
91 75 June 33 24
0 0 July -18 -18
92 77 August 33 25
90 74 September 32 23
82 65 October 28 18
72 53 November 22 12
66 50 December 19 10
79 63 Year 26 17
30-year temperature averages for New Orleans, 1991 to 2020
High °F Low °F   High °C Low °C
63 46 January 17 8
66 50 February 19 10
72 55 March 22 13
79 62 April 26 17
85 69 May 30 21
90 75 June 32 24
91 77 July 33 25
91 77 August 33 25
88 74 September 31 23
81 64 October 27 18
71 54 November 22 12
65 48 December 18 9
79 63 Year 26 17

Days of Hot Weather in New Orleans

New Orleans temperatures regularly climb into the 90s from June to September. But only once every few years is there a day with 100-degree heat (38 °C). Most summer nights are also hot, with the thermometer remaining above 70 degrees.

Warm weather extends consistently from April to October in New Orleans. During those seven months, the city can count on daily temperatures of at least 60 °F and nights no colder than 40 °F (4 °C).

Days per month in New Orleans of at least 70, 80 or 90 °F
  70 °F
21 °C
80 °F
27 °C
90 °F
32 °C
January 9 1 0
February 12 2 0
March 22 7 0
April 28 15 0
May 31 28 6
June 30 30 18
July 31 31 23
August 31 31 23
September 30 29 13
October 29 20 2
November 18 5 0
December 12 2 0
Year 283 199 85
Average number of days monthly in New Orleans that stay above 50, 60 or 70 °F
  50 °F
10 °C
60 °F
16 °C
70 °F
21 °C
January 9 3 0
February 12 4 0
March 20 9 1
April 27 16 3
May 31 27 12
June 30 30 26
July 31 31 30
August 31 31 30
September 30 29 23
October 29 20 8
November 17 7 1
December 11 4 0
Year 277 211 134

How Often New Orleans Has Cold Temperatures

Cold weather doesn't occur frequently in New Orleans. The southern city averages just five nights a year when the temperature drops to freezing. Weather that chilly can show up anytime from November to March.

But any overnight frost always thaws during the day. Even in winter, every day normally has a high of at least 40 °F. Indeed, most days get much warmer. Only on seven days a year, on average, does the thermometer in New Orleans fail to make it above 49 degrees.

References

Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

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