New Orleans/Armstrong Intl climate by month
Averages and records for each calendar month at New Orleans/Armstrong Intl, United States, from 1948 to 2026. The warmest month is July, averaging 32.8°C; the coolest is January at 16.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 16.9°C | 6.7°C | 28.3°C31 January 1957 | −10.0°C11 January 1962 | 79 / 79 |
| February | 18.8°C | 8.5°C | 30.0°C21 February 2026 | −8.9°C5 February 1996 | 79 / 79 |
| March | 22.3°C | 11.8°C | 31.7°C18 March 1982 | −3.9°C2 March 1980 | 79 / 79 |
| April | 25.9°C | 15.4°C | 33.3°C21 April 1987 | 0.0°C8 April 1971 | 79 / 79 |
| May | 29.5°C | 19.4°C | 36.1°C15 May 2018 | 5.0°C13 May 1960 | 79 / 79 |
| June | 32.1°C | 22.6°C | 38.3°C24 June 2009 | 10.0°C1 June 1984 | 79 / 79 |
| July | 32.8°C | 23.6°C | 38.3°C16 July 1980 | 15.6°C16 July 1967 | 79 / 79 |
| August | 32.8°C | 23.6°C | 40.6°C27 August 2023 | 15.6°C30 August 1968 | 79 / 79 |
| September | 30.8°C | 21.8°C | 38.3°C10 September 1980 | 5.6°C30 September 1967 | 78 / 79 |
| October | 26.8°C | 16.3°C | 36.1°C4 October 2019 | 1.7°C29 October 1968 | 78 / 78 |
| November | 21.7°C | 11.0°C | 31.1°C2 November 2016 | −4.4°C25 November 1970 | 78 / 78 |
| December | 18.3°C | 8.1°C | 29.4°C5 December 2017 | −11.7°C23 December 1989 | 78 / 78 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 78 to 79 years each.
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Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.