May weather forecast
Ruston, LA

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Weather in May

With an upward leap in temperatures, May indicates the imminent arrival of summer in Ruston. Shifting weather patterns include extended daylight hours and even more sunshine. The relative humidity remains quite stable contrasting the growing heat. Traces of spring, such as breezy days and scattered rainfall, gradually fade away. While the rainfall inches down slightly from April to May, it still reaches a considerable 3.58" (91mm).

Temperature

The start of May brings a subtle rise in the average high-temperature, moving from a warm 75.7°F (24.3°C) in April to a still moderately hot 84°F (28.9°C). An average nighttime temperature of 63.3°F (17.4°C) is noted during the month of May.

Heat index

In May, the heat index is evaluated at a hot 91.4°F (33°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

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

Rainfall

In Ruston, in May, it is raining for 14.8 days, with typically 3.58" (91mm) of accumulated precipitation. Throughout the year, there are 155.1 rainfall days, and 37.64" (956mm) of precipitation is accumulated.

Snowfall

In Ruston, snow does not fall in March through November.

Daylight

The average length of the day in May is 13h and 50min.
On the first day of May in Ruston, sunrise is at 6:22 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:12 pm CDT.

Sunshine

In Ruston, the average sunshine in May is 9.1h.

UV index

In May, the average daily maximum UV index in Ruston is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: An average maximum UV index of 6 in May leads to these recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in May?

The high-temperature, in May, in Ruston, is 84°F (28.9°C), while the low-temperature averages to 63.3°F (17.4°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in May is evaluated at 91.4°F (33°C).

What is the average humidity in May?

In May, the average relative humidity is 75%.

How much does it rain in May?

In Ruston, during May, the rain falls for 14.8 days and regularly aggregates up to 3.58" (91mm) of precipitation.

When it does not snow?

In Ruston, snow does not fall in March through November.

What is the average length of the day in May?

The average day length in May is 13h and 50min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:22 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:12 pm CDT.

How long on average sun shines in May?

In Ruston, Louisiana, the average sunshine duration in May is 9.1h.

How high is the UV index in May?

In May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe 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
Ruston, LA

Average temperature in May - Ruston, LA
  • Average high temperature in May: 84°F

The warmest month (with the highest average high temperature) is August (93.9°F).
The month with the lowest average high temperature is January (53.6°F).

  • Average low temperature in May: 63.3°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).

Average pressure in May
Ruston, LA

Average pressure in May - Ruston, LA
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Ruston, LA

Average wind speed in May - Ruston, LA
  • Average wind speed in May: 6mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).

Average humidity in May
Ruston, LA

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

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are July, August and October (71%).

Average rainfall in May
Ruston, LA

Average rainfall in May - Ruston, LA
  • Average rainfall in May: 3.58"

The wettest month (with the highest rainfall) is February (4.06").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in May
Ruston, LA

Average rainfall days in May - Ruston, LA
  • Average rainfall days in May: 14.8 days

The month with the highest number of rainy days is March (15.1 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in May
Ruston, LA

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

The months with the highest snowfall are January and February (0.28").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Ruston, LA

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

The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in May: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

Average sunshine days in May
Ruston, LA

Average sunshine days in May - Ruston, LA
  • Average sunshine days in May: 14.6 days

The month with the most sunshine days is October (20 days).
The month with the least sunshine days is February (13.1 days).

Average UV index in May
Ruston, LA

Average UV index in May - Ruston, 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).

Average cloud cover in May
Ruston, LA

Average cloud cover in May - Ruston, LA
  • Average cloud cover in May: 38

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is October (Cloud cover 30).

Average visibility in May
Ruston, LA

Average visibility in May - Ruston, LA
  • Average visibility in May: 5mi

The months with the highest visibility are June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May and December (5mi).

Ruston, Louisiana, USA

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