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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Harahan, Louisiana, is another refreshing winter month, with an average temperature fluctuating between 60.3°F (15.7°C) and 47.7°F (8.7°C). January, with its high-temperature average of 60.3°F (15.7°C) and a low-temperature average of 47.7°F (8.7°C), is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Harahan, is a comfortable month, with an average temperature ranging between max 64.6°F (18.1°C) and min 51.8°F (11°C). Harahan starts February with an average high-temperature of a still refreshing 64.6°F (18.1°C), hinting at a minimal fluctuation from January. Weather in February »
Weather in March
The first month of the spring, March, is an agreeable month in Harahan, Louisiana, with temperature in the range of an average low of 57.4°F (14.1°C) and an average high of 70.9°F (21.6°C). As Harahan welcomes March, the average high-temperature sees a modest rise, transitioning from a refreshing 64.6°F (18.1°C) in February to an agreeable 70.9°F (21.6°C). Weather in March »
Weather in April
April in Harahan, Louisiana, is a warm spring month, with an average temperature fluctuating between 63.3°F (17.4°C) and 76.6°F (24.8°C). The onset of April marks a slight increase in the average high-temperature, moving from an agreeable 70.9°F (21.6°C) in March to a warm 76.6°F (24.8°C). Weather in April »
Weather in May
The last month of the spring, May, is another warm month in Harahan, Louisiana, with an average temperature varying between 82.9°F (28.3°C) and 70°F (21.1°C). As Harahan welcomes May, the average high-temperature displays a subtle shift, adjusting from a moderately hot 76.6°F (24.8°C) in April to a still warm 82.9°F (28.3°C). Weather in May »
Weather in June
June, the first month of the summer in Harahan, is a hot month, with an average temperature ranging between min 76.5°F (24.7°C) and max 88.2°F (31.2°C). Harahan, Louisiana, observes a minor difference in average high-temperatures between May's 82.9°F (28.3°C) and June's 88.2°F (31.2°C). Weather in June »
Weather in July
July, the same as June, in Harahan, Louisiana, is another hot summer month, with an average temperature varying between 89.2°F (31.8°C) and 77.7°F (25.4°C). Harahan's July weather, marked by an average high temperature of 89.2°F (31.8°C) and an average low temperature of 77.7°F (25.4°C), is the warmest in the year. For most parts of July, the heat index is computed to be a blisteringly hot 107.6°F (42°C). Weather in July »
Weather in August
The last month of the summer, August, is also a hot month in Harahan, Louisiana, with an average temperature ranging between max 88.7°F (31.5°C) and min 77.9°F (25.5°C). The transition from July to August brings an average high-temperature of a still tropical 88.7°F (31.5°C), barely different from July's 89.2°F (31.8°C). Weather in August »
Weather in September
September, the first month of the autumn in Harahan, is still a tropical month, with an average temperature ranging between min 75°F (23.9°C) and max 86.5°F (30.3°C). The shift into September records an average high-temperature of a still tropical 86.5°F (30.3°C), subtly varied from August's 88.7°F (31.5°C). Weather in September »
Weather in October
October, the same as September, is a moderately hot autumn month in Harahan, Louisiana, with an average temperature varying between 78.6°F (25.9°C) and 65.7°F (18.7°C). Start of October brings a slight shift in the average high-temperature, dipping a bit from September's hot 86.5°F (30.3°C) to a moderately hot 78.6°F (25.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Harahan, is another pleasant month, with an average temperature varying between 68.9°F (20.5°C) and 55.9°F (13.3°C). As November commences, the average high-temperature shows a reduction, transitioning from a warm 78.6°F (25.9°C) in October to a pleasant 68.9°F (20.5°C). Weather in November »
Weather in December
The first month of the winter, December, is still a comfortable month in Harahan, Louisiana, with an average temperature fluctuating between 51.6°F (10.9°C) and 63.5°F (17.5°C). The arrival of December signals a subtle shift in temperature, down from an agreeable 68.9°F (20.5°C) in November to a refreshing 63.5°F (17.5°C). Weather in December »
Updated: Jun 4, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
January tends to be the coldest month, with temperatures averaging a daily high of 60.3°F (15.7°C) and a low of 47.7°F (8.7°C).
How many days does it rain?
In Harahan, during the entire year, the rain falls for 179.5 days and collects up to 37.4" (950mm) of precipitation.
When does it snow?
The only month with snowfall is January.
What is the snowiest month?
January is the month with the most snowfall. Snow falls for 0.3 days and accumulates 0.04" (1mm) of snow.
How much does it snow in Harahan?
Throughout the year, there are 0.4 snowfall days, and 0.04" (1mm) of snow is accumulated.
What is the month with the lowest UV index?
The months with the lowest UV index in Harahan are January, November and December, with an average maximum UV index of 4.
What are the most humid months?
February and December, with an average relative humidity of 78%, are most humid months.
When it does not snow in Harahan?
February through December are months without snowfall.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What are the months with the highest UV index?
The months with the highest UV index are May through September, with an average maximum UV index of 7.
When are the longest days?
June has the longest days of the year, with an average of 14h and 0min of daylight.
What month has the most sunshine?
With an average of 10.9h of sunshine, June has the most sunshine of the year.
What are the warmest months?
In Harahan, the peak temperatures are generally noted in July, averaging a high of 89.2°F (31.8°C) and a low of 77.7°F (25.4°C).
What is the wettest month?
The month with the most rainfall is July, when the rain falls for 23.7 days and typically aggregates up to 5.94" (151mm) of precipitation.
What is the least humid month?
The least humid month is October, with an average relative humidity of 72%.
What is the driest month?
The month with the least rainfall is November, when the rain falls for 8.3 days and typically collects 1.65" (42mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 10h and 18min of daylight.
What is the month with the least sunshine?
The month with the least sunshine is December, with an average of 5.1h of sunshine.
Average temperature
Harahan, LA
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (60.3°F).
The month with the highest average low temperature is August (77.9°F).
The coldest month (with the lowest average low temperature) is January (47.7°F).
Average pressure
Harahan, LA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
30"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.97"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).
Average wind speed
Harahan, LA
- Average wind speed in January:
9.1mph - Average wind speed in February:
9.2mph - Average wind speed in March:
8.9mph - Average wind speed in April:
9.2mph - Average wind speed in May:
7.6mph - Average wind speed in June:
6.8mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.3mph - Average wind speed in September:
6.6mph - Average wind speed in October:
8mph - Average wind speed in November:
8.6mph - Average wind speed in December:
8.9mph
The windiest months (with the highest average wind speed) are February and April (9.2mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity
Harahan, LA
The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Harahan, LA
- Average rainfall in January:
1.93" - Average rainfall in February:
2.28" - Average rainfall in March:
1.89" - Average rainfall in April:
2.36" - Average rainfall in May:
3.39" - Average rainfall in June:
3.86"
- Average rainfall in July:
5.94" - Average rainfall in August:
5.35" - Average rainfall in September:
3.19" - Average rainfall in October:
2.68" - Average rainfall in November:
1.65" - Average rainfall in December:
2.87"
The wettest month (with the highest rainfall) is July (5.94").
The driest month (with the least rainfall) is November (1.65").
Average rainfall days
Harahan, LA
- Average rainfall days in January:
10.4 days - Average rainfall days in February:
11.8 days - Average rainfall days in March:
12.9 days - Average rainfall days in April:
11.4 days - Average rainfall days in May:
14 days - Average rainfall days in June:
20.2 days
- Average rainfall days in July:
23.7 days - Average rainfall days in August:
24.2 days - Average rainfall days in September:
18.5 days - Average rainfall days in October:
10.6 days - Average rainfall days in November:
8.3 days - Average rainfall days in December:
13.5 days
The month with the highest number of rainy days is August (24.2 days).
The month with the least rainy days is November (8.3 days).
Average snowfall
Harahan, LA
The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days
Harahan, LA
- Average snowfall days in January:
0.3 days - Average snowfall days in February:
0 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.1 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Harahan, LA
- Average daylight in January:
10h and 3min - Average daylight in February:
11h and 1min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 5min - Average daylight in May:
13h and 4min - Average daylight in June:
14h and 0min
- Average daylight in July:
13h and 5min - Average daylight in August:
13h and 1min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 4min - Average daylight in December:
10h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in January:
5h and 4min - Average sunshine in February:
5h and 2min - Average sunshine in March:
7h and 5min - Average sunshine in April:
9h and 4min - Average sunshine in May:
10h and 2min - Average sunshine in June:
10h and 5min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 4min - Average sunshine in September:
10h and 1min - Average sunshine in October:
7h and 1min - Average sunshine in November:
6h and 1min - Average sunshine in December:
5h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days
Harahan, LA
- Average sunshine days in January:
18.8 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
16.7 days - Average sunshine days in April:
16.3 days - Average sunshine days in May:
14.7 days - Average sunshine days in June:
8.4 days
- Average sunshine days in July:
5.3 days - Average sunshine days in August:
5.3 days - Average sunshine days in September:
8.5 days - Average sunshine days in October:
18 days - Average sunshine days in November:
20.5 days - Average sunshine days in December:
15.9 days
The month with the most sunshine days is November (20.5 days).
The months with the least sunshine days are July and August (5.3 days).
Average UV index
Harahan, LA
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, November and December (UV index 4).
Average cloud cover
Harahan, LA
The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 25).
Average visibility
Harahan, LA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Harahan, Louisiana, USA
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