May weather forecast
Delta, LA

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Weather in May

As Delta transitions to the warmer months, May sees clear skies, long hours of daylight, and significant rises in temperature. This month marks the onset of longer, hotter days in Louisiana. While high temperatures average around 83.1°F (28.4°C) and low temperatures around 63.5°F (17.5°C), May has rainfall of around 3.15" (80mm). With prolonged sunlight hours and high UV index, it marks the starting of sunscreen season. As spring fades away, residents can expect the full brunt of summer heat to hit by June.

Temperature

As May arrives, Delta's weather shows a minor increase in high-temperatures, edging from April's warm 75.2°F (24°C) to a still moderately hot 83.1°F (28.4°C). Throughout the month of May, the average temperature in Delta dips to a comfortable 63.5°F (17.5°C) at night.

Heat index

In May, the heat index is appraised at a tropical 89.6°F (32°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.
In the scope of the heat index, its values resonate with shade and light wind conditions. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

The average relative humidity in May is 76%.

Rainfall

In Delta, in May, during 15 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. In Delta, during the entire year, the rain falls for 169.7 days and collects up to 38.82" (986mm) of precipitation.

Snowfall

In Delta, snow does not fall in April through October.

Daylight

In May, the average length of the day is 13h and 50min.
On the first day of May in Delta, Louisiana, sunrise is at 6:16 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:05 pm CDT.

Sunshine

The average sunshine in May is 10.1h.

UV index

The average daily maximum UV index in May in Delta, Louisiana, is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In May, the maximum UV index of 6 transforms into these recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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Frequently asked questions

How hot is May in Delta?

Delta in May has an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 63.5°F (17.5°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in May is appraised at 89.6°F (32°C).

What is the average humidity in May in Delta?

In Delta, Louisiana, the average relative humidity in May is 76%.

How much does it rain in Delta in May?

In May, in Delta, the rain falls for 15 days. Throughout May, 3.15" (80mm) of precipitation is accumulated.

When it does not snow in Delta?

April through October are months without snowfall in Delta.

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

In Delta, the average day length in May is 13h and 50min.

When is the sunrise / sunset in May in Delta?

On the first day of May in Delta, sunrise is at 6:16 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:05 pm CDT.

How many hours of sunshine does Delta have in May?

The average sunshine duration in May in Delta, Louisiana, is 10.1h.

How high is the UV index in May in Delta?

The average daily maximum UV index in May in Delta is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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
Delta, LA

Average temperature in May - Delta, LA
  • Average high temperature in May: 83.1°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (54.1°F).

  • Average low temperature in May: 63.5°F

The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (39.6°F).

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Average pressure in May
Delta, LA

Average pressure in May - Delta, LA
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in May
Delta, LA

Average wind speed in May - Delta, LA
  • Average wind speed in May: 6.2mph

The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in May
Delta, LA

Average humidity in May - Delta, LA
  • Average humidity in May: 76%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in May
Delta, LA

Average rainfall in May - Delta, LA
  • Average rainfall in May: 3.15"

The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is November (2.28").

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Average rainfall days in May
Delta, LA

Average rainfall days in May - Delta, LA
  • Average rainfall days in May: 15 days

The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is October (8.9 days).

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Average snowfall in May
Delta, LA

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

The month with the highest snowfall is January (0.43").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Delta, LA

Average snowfall days in May - Delta, LA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Delta, LA
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in May: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).

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Average sunshine days in May
Delta, LA

Average sunshine days in May - Delta, LA
  • Average sunshine days in May: 13.6 days

The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is August (9.9 days).

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Average UV index in May
Delta, LA

Average UV index in May - Delta, LA
  • Average UV index in May: 6

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in May
Delta, LA

Average cloud cover in May - Delta, LA
  • Average cloud cover in May: 32

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 27).

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Average visibility in May
Delta, LA

Average visibility in May - Delta, 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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Delta, Louisiana, USA

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