Weather in Louisiana

Calculated from weather data of Louis Armstrong New Orleans International Airport (KMSY) between 2020 and 2024.

Maximum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	65.0	67.0	70.0	62.0	64.0	67.0
February	70.0	70.0	72.0	67.0	63.0	69.0
March	75.0	73.0	75.0	74.0	75.0	80.0
April	78.0		78.0	79.0	77.0	81.0
May	86.0		86.0	87.0	83.0	86.0
June	90.0		93.0	92.0	89.0	90.0
July	91.0		94.0	90.0	91.0	92.0
August	92.0		97.0	88.0	92.0	92.0
September	89.0		91.0	88.0	86.0	86.0
October	82.0		81.0	79.0	82.0	82.0
November	71.0		70.0	70.0	70.0	75.0
December	67.0		65.0	70.0	73.0	66.0
Average	79.0	70.0	81.0	79.0	79.0	80.0

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	48.0	46	54	44	49	54
February	54.0	53	57	49	46	54
March	59.0	59	61	55	60	66
April	63.0		65	64	63	65
May	71.0		71	73	71	71
June	77.0		77	78	77	78
July	78.0		79	78	79	79
August	78.0		80	77	78	77
September	75.0		76	74	73	75
October	67.0		66	62	69	68
November	55.0		56	56	54	61
December	53.0		52	57	59	48
Average	64.0	53.0	66.0	64.0	65.0	66.0

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2024	2023	2022	2021	2020
86 °F or warmer	1	137	126	110	118
77 °F or warmer	12	232	225	225	240
68 °F or warmer	52	300	290	302	315
32 °F or colder	2	0	1	3	0

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	7.1	11	8	10	4	8
February	5.8	7	5	7	5	7
March	3.6	5	5	2	5	2
April	2.8		3	3	4	2
May	3.0		2	4	5	3
June	5.1		1	1	10	9
July	6.2		2	6	7	11
August	5.7		1	10	7	3
September	5.3		2	3	10	12
October	4.5		3	2	2	3
November	5.4		8	10	2	5
December	8.2		11	8	5	4
Average	5.4	7.4	3.9	5.2	5.5	5.5

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (miles per hour)

Month	Average	2024	2023	2022	2021	2020
January	9.7	10	9	10	9	9
February	10.1	10	11	10	10	10
March	10.2	10	10	11	11	10
April	10.5		10	11	10	10
May	8.8		8	9	11	10
June	8.2		9	7	9	8
July	6.8		7	6	6	8
August	7.0		8	7	7	8
September	7.6		7	7	7	10
October	9.1		10	8	9	10
November	8.3		8	9	7	9
December	8.6		8	8	8	9
Average	8.9	10.1	8.6	8.5	8.6	9.2

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	NE	S	NW	NW	E
February	S	S	E	NE	S
March	E	SE	S	SE	S
April		E	SE	E	SE
May		E	S	SE	SE
June		SW	W	SE	SE
July		SW	S	S	S
August		W	S	E	E
September		NE	N	E	NE
October		NE	E	E	NE
November		NE	NE	NE	NE
December		NE	E	S	NE

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Louisiana weather Q&A

What is the warmest month in Louisiana?

The warmest month is August with an average temperature of 92 °F over the past years.

What is the coldest month in Louisiana?

The coldest month is January with an average daytime temperature of 65 °F in the past few years.

Which month is the wettest in Louisiana?

Chance of precipitation is the highest in December with a probability of around 8.3 %.

Which month is the driest in Louisiana?

The least rainfall and snow can be expected in April. The probability is about 2.9 %.