May weather forecast
Southlake, TX

Share

Weather in May

The last month of the spring, May, is another warm month in Southlake, Texas, with temperature in the range of an average high of 82.2°F (27.9°C) and an average low of 64.6°F (18.1°C).

Temperature

As April transitions into May, a subtle temperature shift is observed, with average highs adjusting from 75°F (23.9°C) to a still warm 82.2°F (27.9°C). During May, Southlake sees a mean low-temperature of 64.6°F (18.1°C).

Heat index

Throughout May, the heat index is estimated at a hot 87.8°F (31°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.
Always consider that heat index estimations are for light winds and places in the shade. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

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

Rainfall

May is the month with the most rainfall. Rain falls for 10.4 days and accumulates 1.34" (34mm) of precipitation.

Snowfall

In Southlake, snow does not fall in April through December.

Daylight

In May, the average length of the day is 13h and 52min.
On the first day of May, sunrise is at 6:40 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

In May, the average sunshine is 8.9h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: An average UV index of 7 in May transforms into this advice:
Ward off overexposure. Defence against solar harm is crucial. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

The average high-temperature, in May, in Southlake, is 82.2°F (27.9°C), while the average low-temperature is 64.6°F (18.1°C). In May, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is estimated at 87.8°F (31°C).

What is the most humid month?

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

What is the average humidity in May?

The average relative humidity in May is 71%.

What is the rainiest month?

The month with the most rainfall is May, when the rain falls for 10.4 days and typically aggregates up to 1.34" (34mm) of precipitation.

How much does it rain in May?

In Southlake, during May, the rain falls for 10.4 days and regularly aggregates up to 1.34" (34mm) of precipitation.

When it does not snow?

April through December are months without snowfall.

How many hours of daylight does Southlake have in May?

The average day length in May is 13h and 52min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:40 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.

How many hours of sunshine does Southlake have in May?

In Southlake, the average sunshine duration in May is 8.9h.

When is the highest UV index?

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

How high is the UV index in May?

The average daily maximum UV index in May is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
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
Southlake, TX

Average temperature in May - Southlake, 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
Southlake, TX

Average pressure in May - Southlake, 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
Southlake, TX

Average wind speed in May - Southlake, 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
Southlake, TX

Average humidity in May - Southlake, 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
Southlake, TX

Average rainfall in May - Southlake, 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
Southlake, TX

Average rainfall days in May - Southlake, 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
Southlake, TX

Average snowfall in May - Southlake, 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
Southlake, TX

Average snowfall days in May - Southlake, 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
Southlake, TX

Average daylight in May / Average sunshine in May - Southlake, 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
Southlake, TX

Average sunshine days in May - Southlake, 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
Southlake, TX

Average UV index in May - Southlake, 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
Southlake, TX

Average cloud cover in May - Southlake, 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
Southlake, TX

Average visibility in May - Southlake, 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).

Southlake, Texas, USA

Weather forecast for your location

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