| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 17.3° | 7.6° | 110.3mm | 9.5 | 72 |
| February | 19.5° | 9.9° | 104.4mm | 8.8 | 81 |
| March | 23.1° | 13.2° | 110.9mm | 7.5 | 85 |
| April | 26.5° | 16.6° | 129.5mm | 6.9 | 86 |
| May | 30.6° | 20.8° | 134.6mm | 7.1 | 71 |
| June | 33.3° | 23.8° | 173.1mm | 12.5 | 50 |
| July | 33.9° | 24.7° | 214.1mm | 15.2 | 42 |
| August | 34.1° | 25° | 162.1mm | 12.9 | 46 |
| September | 31.9° | 23.1° | 171.7mm | 9.9 | 61 |
| October | 27.8° | 18.2° | 92.2mm | 6.1 | 85 |
| November | 22° | 12.6° | 95.4mm | 7.5 | 85 |
| December | 18.6° | 9.2° | 127.5mm | 8.6 | 78 |
January in Metairie averages a daily high of 17.3°C with nights around 7.6°C. Expect roughly 9.5 wet days totalling 110.3mm. Generally workable, with some weather to plan around.
February in Metairie averages a daily high of 19.5°C with nights around 9.9°C. Expect roughly 8.8 wet days totalling 104.4mm. Comfortable conditions for being outdoors all day.
March in Metairie averages a daily high of 23.1°C with nights around 13.2°C. Expect roughly 7.5 wet days totalling 110.9mm. Comfortable conditions for being outdoors all day.
April in Metairie averages a daily high of 26.5°C with nights around 16.6°C. Expect roughly 6.9 wet days totalling 129.5mm. Comfortable conditions for being outdoors all day.
May in Metairie averages a daily high of 30.6°C with nights around 20.8°C. Expect roughly 7.1 wet days totalling 134.6mm. Generally workable, with some weather to plan around.
June in Metairie averages a daily high of 33.3°C with nights around 23.8°C. Expect roughly 12.5 wet days totalling 173.1mm. Demanding conditions — pack for it and plan indoor options.
July in Metairie averages a daily high of 33.9°C with nights around 24.7°C. Expect roughly 15.2 wet days totalling 214.1mm. Demanding conditions — pack for it and plan indoor options.
August in Metairie averages a daily high of 34.1°C with nights around 25°C. Expect roughly 12.9 wet days totalling 162.1mm. Demanding conditions — pack for it and plan indoor options.
September in Metairie averages a daily high of 31.9°C with nights around 23.1°C. Expect roughly 9.9 wet days totalling 171.7mm. Generally workable, with some weather to plan around.
October in Metairie averages a daily high of 27.8°C with nights around 18.2°C. Expect roughly 6.1 wet days totalling 92.2mm. Comfortable conditions for being outdoors all day.
November in Metairie averages a daily high of 22°C with nights around 12.6°C. Expect roughly 7.5 wet days totalling 95.4mm. Comfortable conditions for being outdoors all day.
December in Metairie averages a daily high of 18.6°C with nights around 9.2°C. Expect roughly 8.6 wet days totalling 127.5mm. Comfortable conditions for being outdoors all day.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Metairie peaks at 86.
Based on 30 years of records, February–April scores highest for comfort in Metairie, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 34.1°C.
July is the wettest, averaging 214.1mm of rain across roughly 15.2 wet days.
January is the coolest month, with average daily highs around 17.3°C.