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 beginning of May marks a minor shift in the average high-temperature, moving from April's warm 75°F (23.9°C) to a still moderately hot 82.2°F (27.9°C). Grapevine observes an average nighttime temperature of 64.6°F (18.1°C) during May.Heat index
The heat index in May is appraised at a hot 87.8°F (31°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
With an average relative humidity of 71%, May is the most humid month.Rainfall
May is the month with the most rainfall in Grapevine, Texas. Rain falls for 10.4 days and accumulates 1.34" (34mm) of precipitation.Snowfall
In Grapevine, Texas, snow does not fall in April through December.Daylight
The average length of the day in May in Grapevine is 13h and 52min.On the first day of May, sunrise is at 6:39 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:31 pm CDT.
Sunshine
The average sunshine in May in Grapevine, Texas, is 8.9h.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 exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 7 during May, leads to the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Frequently asked questions
What is the average May temperature in Grapevine?
What is the most humid month in Grapevine?
What is the average humidity in May in Grapevine?
What is the wettest month in Grapevine?
How many days does it rain in May in Grapevine?
When it does not snow in Grapevine?
What is the average length of the day in May in Grapevine?
What time are sunrise and sunset in May in Grapevine?
How long on average sun shines in May in Grapevine?
What are the months with the highest UV index in Grapevine?
What is the UV index intensity in May in Grapevine?
Average temperature in May
Grapevine, TX
- Average high temperature in May: 82.2°F
The warmest month (with the highest average high temperature) is August (96.4°F).
The month with the lowest average high temperature is January (54.5°F).
- Average low temperature in May: 64.6°F
The month with the highest average low temperature is August (77.2°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in May
Grapevine, 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
Grapevine, TX
- Average wind speed in May: 9.1mph
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 (6.7mph).
Average humidity in May
Grapevine, 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 (54%).
Average rainfall in May
Grapevine, TX
- Average rainfall in May: 1.34"
The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in May
Grapevine, TX
- Average rainfall days in May: 10.4 days
The month with the highest number of rainy days is September (10.5 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in May
Grapevine, TX
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.16").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Grapevine, TX
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.9 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
Grapevine, 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 5min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in May
Grapevine, TX
- Average sunshine days in May: 17.2 days
The month with the most sunshine days is January (25.1 days).
The month with the least sunshine days is September (16.8 days).
Average UV index in May
Grapevine, TX
- Average UV index in May: 7
The months with the highest UV index are May, 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
Grapevine, TX
- Average cloud cover in May: 35
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in May
Grapevine, 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).
Grapevine, Texas, USA
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