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.
| 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 |
| 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).
| 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 |
| 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.