Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
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). Harahan's nighttime temperature during May is consistently averaged at a pleasant 70°F (21.1°C).Heat index
The average heat index in May is computed to be a tropical 89.6°F (32°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.Evaluating the heat index requires understanding its values in the shade and with gentle winds. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
In Harahan, the average relative humidity in May is 75%.Rainfall
In May, the rain falls for 14 days. Throughout May, 3.39" (86mm) of precipitation is accumulated. In Harahan, during the entire year, the rain falls for 179.5 days and collects up to 37.4" (950mm) of precipitation.Snowfall
February through December are months without snowfall.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 reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 7 during May translates into the following guidance:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is May?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
How many hours of daylight does Harahan have in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
What are the months with the highest UV index?
How high is the UV index in May?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Harahan, Louisiana, USA
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