May weather forecast
Grand Prairie, TX

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Weather in May

Riding on the tail of spring, May in Grand Prairie is a month of ever-increasing brightness, warmth, and humidity. The city basks in longer daylight hours, spurred by the sun's tenacious shine over approximately 19 days. Despite a noticeable increase in cloud cover, visibility remains optimal, enhancing the city's glowing beauty. A significant rise in temperature is observed this month, where average highs climb to around 82.2°F (27.9°C), ushering in the year's first wave of summer heat. These conditions resonate into the following hot months, setting the tone for the prevalent weather of June.

Temperature

As May begins in Grand Prairie, Texas, there's a slight increase in the average high-temperature, moving from 75°F (23.9°C) in April to a still moderately hot 82.2°F (27.9°C). Grand Prairie sees an average low-temperature of 64.8°F (18.2°C) during May.

Heat index

May's mean heat index is computed to be a hot 87.8°F (31°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
Always consider that heat index estimations are for light winds and places in the shade. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

May is the most humid month, with an average relative humidity of 71%.

Rainfall

May is the month with the most rainfall. Rain falls for 9.3 days and accumulates 1.26" (32mm) of precipitation.

Snowfall

In Grand Prairie, snow does not fall in January, March through December.

Daylight

In May, the average length of the day is 13h and 52min.
On the first day of May in Grand Prairie, 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 8:30 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 Grand Prairie. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 7 in May translates into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. 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. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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Frequently asked questions

What are May temperatures in Grand Prairie?

The average high-temperature, in May, in Grand Prairie, is 82.2°F (27.9°C), while the average low-temperature is 64.8°F (18.2°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in May is computed to be 87.8°F (31°C).

What is the most humid month in Grand Prairie?

The most humid month is May, with an average relative humidity of 71%.

What is the average humidity in May in Grand Prairie?

In May, the average relative humidity in Grand Prairie, Texas, is 71%.

What is the wettest month in Grand Prairie?

The month with the most rainfall in Grand Prairie is May, when the rain falls for 9.3 days and typically aggregates up to 1.26" (32mm) of precipitation.

How much does it rain in Grand Prairie in May?

In May, in Grand Prairie, Texas, the rain falls for 9.3 days. Throughout May, 1.26" (32mm) of precipitation is accumulated.

When it does not snow in Grand Prairie?

January, March through December are months without snowfall.

What is the average length of the day in May in Grand Prairie?

In May, the average day length in Grand Prairie is 13h and 52min.

When is the sunrise / sunset in May in Grand Prairie?

On the first day of May in Grand Prairie, Texas, 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 8:30 pm CDT.

How long on average sun shines in May in Grand Prairie?

In Grand Prairie, the average sunshine duration in May is 8.7h.

What are the months with the highest UV index in Grand Prairie?

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

What is the UV index intensity in May in Grand Prairie?

In May, the average daily maximum UV index in Grand Prairie, Texas, is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability 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
Grand Prairie, TX

Average temperature in May - Grand Prairie, 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 (54.9°F).

  • Average low temperature in May: 64.8°F

The month with the highest average low temperature is August (77.4°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).

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Average pressure in May
Grand Prairie, TX

Average pressure in May - Grand Prairie, 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 (29.91"Hg).

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Average wind speed in May
Grand Prairie, TX

Average wind speed in May - Grand Prairie, TX
  • Average wind speed in May: 9.1mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is September (6.7mph).

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Average humidity in May
Grand Prairie, TX

Average humidity in May - Grand Prairie, 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%).

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Average rainfall in May
Grand Prairie, TX

Average rainfall in May - Grand Prairie, TX
  • Average rainfall in May: 1.26"

The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is February (0.31").

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Average rainfall days in May
Grand Prairie, TX

Average rainfall days in May - Grand Prairie, TX
  • Average rainfall days in May: 9.3 days

The month with the highest number of rainy days is September (10.8 days).
The month with the least rainy days is January (4 days).

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Average snowfall in May
Grand Prairie, TX

Average snowfall in May - Grand Prairie, TX
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.16").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in May
Grand Prairie, TX

Average snowfall days in May - Grand Prairie, TX
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in May /
Average sunshine in May
Grand Prairie, TX

Average daylight in May / Average sunshine in May - Grand Prairie, 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 month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

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Average sunshine days in May
Grand Prairie, TX

Average sunshine days in May - Grand Prairie, TX
  • Average sunshine days in May: 19 days

The month with the most sunshine days is January (25.6 days).
The month with the least sunshine days is September (16.5 days).

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Average UV index in May
Grand Prairie, TX

Average UV index in May - Grand Prairie, 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).

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Average cloud cover in May
Grand Prairie, TX

Average cloud cover in May - Grand Prairie, 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).

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Average visibility in May
Grand Prairie, TX

Average visibility in May - Grand Prairie, 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).

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Grand Prairie, Texas, USA

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