May weather forecast
Harahan, LA

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Weather in May

May, the last month of the spring in Harahan, is also a moderately hot month, with temperature in the range of an average low of 70°F (21.1°C) and an average high of 82.9°F (28.3°C).

Temperature

May introduces a minor temperature shift, with average high-temperatures adjusting from April's 76.6°F (24.8°C) to a still warm 82.9°F (28.3°C). The low-temperature in Harahan, Louisiana, averages to an agreeable 70°F (21.1°C) during the nights of May.

Heat index

The average heat index in May is estimated at a hot 89.6°F (32°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.

Humidity

The average relative humidity in May is 75%.

Rainfall

In Harahan, in May, during 14 rainfall days, 3.39" (86mm) of precipitation is typically accumulated. In Harahan, Louisiana, during the entire year, the rain falls for 179.5 days and collects up to 37.4" (950mm) of precipitation.

Snowfall

In Harahan, snow does not fall in February through December.

Daylight

In Harahan, the average length of the day in May is 13h and 40min.
On the first day of May, sunrise is at 6:17 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:56 pm CDT.

Sunshine

The average sunshine in May is 10.4h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The daily maximum UV index of 7 in May interprets into the following advice:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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Frequently asked questions

How hot is May in Harahan?

The average high-temperature, in May, in Harahan, is 82.9°F (28.3°C), while the average low-temperature is 70°F (21.1°C). In May, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is estimated at 89.6°F (32°C).

What is the average humidity in May in Harahan?

In Harahan, Louisiana, the average relative humidity in May is 75%.

How many days does it rain in May in Harahan?

In May, in Harahan, Louisiana, the rain falls for 14 days. Throughout May, 3.39" (86mm) of precipitation is accumulated.

When it does not snow in Harahan?

In Harahan, Louisiana, snow does not fall in February through December.

What is the average length of the day in May in Harahan?

In May, the average day length is 13h and 40min.

When is the sunrise / sunset in May in Harahan?

On the first day of May in Harahan, Louisiana, sunrise is at 6:17 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:56 pm CDT.

How long on average sun shines in May in Harahan?

In Harahan, Louisiana, the average sunshine duration in May is 10.4h.

What is the month with the highest UV index in Harahan?

The months with the highest UV index are May through September, with an average maximum UV index of 7.

How high is the UV index in May in Harahan?

In Harahan, the average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Harahan, LA

Average temperature in May - Harahan, LA
  • Average high temperature in May: 82.9°F

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).

  • Average low temperature in May: 70°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).

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Average pressure in May
Harahan, LA

Average pressure in May - Harahan, LA
  • Average pressure in May: 29.99"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).

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Average wind speed in May
Harahan, LA

Average wind speed in May - Harahan, LA
  • Average wind speed in May: 7.6mph

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).

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Average humidity in May
Harahan, LA

Average humidity in May - Harahan, LA
  • Average humidity in May: 75%

The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in May
Harahan, LA

Average rainfall in May - Harahan, LA
  • Average rainfall in May: 3.39"

The wettest month (with the highest rainfall) is July (5.94").
The driest month (with the least rainfall) is November (1.65").

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Average rainfall days in May
Harahan, LA

Average rainfall days in May - Harahan, LA
  • Average rainfall days in May: 14 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).

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Average snowfall in May
Harahan, LA

Average snowfall in May - Harahan, LA
  • Average snowfall in May: 0"

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").

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Average snowfall days in May
Harahan, LA

Average snowfall days in May - Harahan, LA
  • Average snowfall days in May: 0 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).

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Average daylight in May /
Average sunshine in May
Harahan, LA

Average daylight in May / Average sunshine in May - Harahan, LA
  • Average daylight in May: 13h and 4min

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 May: 10h and 2min

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).

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Average sunshine days in May
Harahan, LA

Average sunshine days in May - Harahan, LA
  • Average sunshine days in May: 14.7 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).

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Average UV index in May
Harahan, LA

Average UV index in May - Harahan, LA
  • Average UV index in May: 7

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).

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Average cloud cover in May
Harahan, LA

Average cloud cover in May - Harahan, LA
  • Average cloud cover in May: 27

The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 25).

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Average visibility in May
Harahan, LA

Average visibility in May - Harahan, LA
  • Average visibility in May: 6mi

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).

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Harahan, Louisiana, USA

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