May weather forecast
Riverland, LA

Share

Weather in May

May, the last month of the spring in Riverland, is also a moderately hot month, with an average temperature varying between 85.3°F (29.6°C) and 66°F (18.9°C).

Temperature

As Riverland transitions into May, the average high-temperature is observed to slightly rise from a warm 78.4°F (25.8°C) in April to a still moderately hot 85.3°F (29.6°C). Riverland's average low-temperature during May nights is observed to be a refreshing 66°F (18.9°C).

Heat index

During May, the heat index is evaluated at a sweltering 95°F (35°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Heat index evaluations are typically in the context of light winds and shaded environments. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In May, the average relative humidity is 76%.

Rainfall

In Riverland, during May, the rain falls for 15.2 days and regularly aggregates up to 3.35" (85mm) of precipitation. In Riverland, during the entire year, the rain falls for 187.5 days and collects up to 40" (1016mm) of precipitation.

Snowfall

In Riverland, snow does not fall in February through November.

Daylight

In May, the average length of the day is 13h and 42min.
On the first day of May, sunrise is at 6:20 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:01 pm CDT.

Sunshine

The average sunshine in May is 9.9h.

UV index

May through August, 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 vulnerability from unsafe exposure to UV radiation for the average person.
Note: In May, the maximum UV index of 7 suggests this advice:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. 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. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in May?

In May, the average high-temperature and low-temperature are 85.3°F (29.6°C) and 66°F (18.9°C) respectively. In May, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 95°F (35°C).

What is the average humidity in May?

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

How many days does it rain in May in Riverland?

In May, the rain falls for 15.2 days. Throughout May, 3.35" (85mm) of precipitation is accumulated.

When it does not snow?

February through November are months without snowfall.

What is the average length of the day in May?

In May, the average day length is 13h and 42min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:20 am and sunset at 7:42 pm. On the last day of the month, in Riverland, Louisiana, sunrise is at 6:03 am and sunset at 8:01 pm CDT.

How long on average sun shines in May?

The average sunshine duration in May is 9.9h.

What is the month with the highest UV index?

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

What is the UV index intensity in May?

In Riverland, the average daily maximum UV index in May is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
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
Riverland, LA

Average temperature in May - Riverland, LA
  • Average high temperature in May: 85.3°F

The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (59°F).

  • Average low temperature in May: 66°F

The month with the highest average low temperature is August (74.7°F).
The coldest month (with the lowest average low temperature) is January (43.2°F).

Average pressure in May
Riverland, LA

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).

Average wind speed in May
Riverland, LA

Average wind speed in May - Riverland, LA
  • Average wind speed in May: 5.5mph

The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in May
Riverland, LA

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

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (73%).

Average rainfall in May
Riverland, LA

Average rainfall in May - Riverland, LA
  • Average rainfall in May: 3.35"

The wettest month (with the highest rainfall) is July (5.47").
The driest month (with the least rainfall) is November (1.93").

Average rainfall days in May
Riverland, LA

Average rainfall days in May - Riverland, LA
  • Average rainfall days in May: 15.2 days

The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in May
Riverland, LA

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

The month with the highest snowfall is January (0.2").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Riverland, LA

Average snowfall days in May - Riverland, 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
Riverland, LA

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

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

  • Average sunshine in May: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in May
Riverland, LA

Average sunshine days in May - Riverland, LA
  • Average sunshine days in May: 14.3 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (5.9 days).

Average UV index in May
Riverland, LA

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

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

Average cloud cover in May
Riverland, LA

Average cloud cover in May - Riverland, LA
  • Average cloud cover in May: 34

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 27).

Average visibility in May
Riverland, LA

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

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

Riverland, Louisiana, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location