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
The shift from April to May sees a slight increase in the average high-temperature, transitioning from 78.6°F (25.9°C) to a still warm 84.7°F (29.3°C). Nighttime temperature in Saint Thomas dips to a mean of 66.7°F (19.3°C) during May.Heat index
The average heat index in May is computed to be a fiery hot 95°F (35°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.
Humidity
The average relative humidity in May is 77%.Rainfall
In Saint Thomas, Louisiana, during May, the rain falls for 13.8 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Saint Thomas, during the entire year, the rain falls for 170.8 days and collects up to 30.16" (766mm) of precipitation.Snowfall
In Saint Thomas, Louisiana, snow does not fall in February through November.Daylight
The average length of the day in May is 13h and 40min.On the first day of May, sunrise is at 6:20 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:00 pm CDT.
Sunshine
In May, the average sunshine in Saint Thomas is 10h.UV index
In Saint Thomas, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In May, the maximum UV index of 6 translates into these guidelines:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
How hot is it in Saint Thomas in May?
What is the average humidity in May in Saint Thomas?
How much does it rain in Saint Thomas in May?
When it does not snow in Saint Thomas?
How many hours of daylight does Saint Thomas have in May?
When is the sunrise / sunset in May in Saint Thomas?
How many hours of sunshine does Saint Thomas have in May?
How high is the UV index in May in Saint Thomas?
Average temperature in May
Saint Thomas, LA
- Average high temperature in May: 84.7°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (60.1°F).
- Average low temperature in May: 66.7°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (44.8°F).
Average pressure in May
Saint Thomas, 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
Saint Thomas, LA
- Average wind speed in May: 6.2mph
The windiest months (with the highest average wind speed) are February and April (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in May
Saint Thomas, LA
- Average humidity in May: 77%
The months with the highest relative humidity are February, July, August, September and December (80%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Saint Thomas, LA
- Average rainfall in May: 2.44"
The wettest month (with the highest rainfall) is July (4.76").
The driest month (with the least rainfall) is November (1.3").
Average rainfall days in May
Saint Thomas, LA
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is July (22.3 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in May
Saint Thomas, LA
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Saint Thomas, LA
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and December (0.1 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
Saint Thomas, 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 0min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in May
Saint Thomas, LA
- Average sunshine days in May: 15.3 days
The month with the most sunshine days is November (20.2 days).
The months with the least sunshine days are July and August (6.4 days).
Average UV index in May
Saint Thomas, LA
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in May
Saint Thomas, LA
- Average cloud cover in May: 31
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 26).
Average visibility in May
Saint Thomas, LA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Saint Thomas, Louisiana, USA
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