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
A soft shift in the average high-temperature is noticeable in May, transitioning from 74.8°F (23.8°C) in April to a still warm 82.2°F (27.9°C). During May, Lewisville observes a consistent average nighttime temperature of 64.8°F (18.2°C).Heat index
For May, the heat index is computed to be a hot 87.8°F (31°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.Records show heat index calculations are tailored for shaded regions and mild winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
The most humid month is May, with an average relative humidity of 71%.Rainfall
In Lewisville, Texas, during May, the rain falls for 14.3 days and regularly aggregates up to 3.62" (92mm) of precipitation. In Lewisville, Texas, during the entire year, the rain falls for 132.1 days and collects up to 29.09" (739mm) of precipitation.Snowfall
April through October are months without snowfall in Lewisville.Daylight
In May, the average length of the day is 13h and 53min.On the first day of the month, sunrise is at 6:39 am and sunset at 8:10 pm. On the last day of May, sunrise is at 6:20 am and sunset at 8:31 pm CDT.
Sunshine
In May, the average sunshine is 8.7h.UV index
May through August, with an average maximum UV index of 7, are months with the highest UV index in Lewisville. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.Note: In May, the maximum UV index of 7 suggests this advice:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
What is the usual temperature for Lewisville in May?
What is the most humid month in Lewisville?
What is the average humidity in May in Lewisville?
How much does it rain in Lewisville in May?
When it does not snow in Lewisville?
How many hours of daylight does Lewisville have in May?
When is the sunrise / sunset in May in Lewisville?
How many hours of sunshine does Lewisville have in May?
What are the months with the highest UV index in Lewisville?
How high is the UV index in May in Lewisville?
Average temperature in May
Lewisville, TX
- Average high temperature in May: 82.2°F
The warmest month (with the highest average high temperature) is August (96.3°F).
The month with the lowest average high temperature is January (54.1°F).
- Average low temperature in May: 64.8°F
The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).
Average pressure in May
Lewisville, TX
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Lewisville, TX
- Average wind speed in May: 9.2mph
The windiest months (with the highest average wind speed) are March and April (10.1mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity in May
Lewisville, TX
- Average humidity in May: 71%
The month with the highest relative humidity is May (71%).
The month with the lowest relative humidity is August (53%).
Average rainfall in May
Lewisville, TX
- Average rainfall in May: 3.62"
The wettest month (with the highest rainfall) is October (3.74").
The driest months (with the least rainfall) are January and February (1.57").
Average rainfall days in May
Lewisville, TX
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in May
Lewisville, TX
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Lewisville, TX
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.1 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
Lewisville, TX
- 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 0min).
- Average sunshine in May: 8h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in May
Lewisville, TX
- Average sunshine days in May: 15.3 days
The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is September (14.9 days).
Average UV index in May
Lewisville, TX
- 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
Lewisville, TX
- Average cloud cover in May: 36
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in May
Lewisville, TX
- 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).
Lewisville, Texas, USA
Weather forecast for your location
2. Allow the app to use your location
