May weather forecast
Rowlett, TX

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Weather in May

May, the last month of the spring in Rowlett, is another warm month, with an average temperature ranging between max 81.1°F (27.3°C) and min 63.9°F (17.7°C).

Temperature

Rowlett, Texas, in May denotes a subtle temperature transition, adjusting from an average high of a moderately hot 73.9°F (23.3°C) in April to a still warm 81.1°F (27.3°C). Throughout the nights in May, an average low-temperature of 63.9°F (17.7°C) is noted in Rowlett.

Heat index

The average heat index in May is calculated to be a tropical 86°F (30°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
Understand that the heat index values take into account shaded locations and mild winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

With an average relative humidity of 76%, May is the most humid month in Rowlett.

Rainfall

The month with the most rainfall is May, when the rain falls for 12.4 days and typically aggregates up to 2.4" (61mm) of precipitation.

Snowfall

In Rowlett, snow does not fall in March through December.

Daylight

In Rowlett, the average length of the day in May is 13h and 52min.
On the first day of May, sunrise is at 6:37 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 8:29 pm CDT.

Sunshine

In Rowlett, the average sunshine in May is 8.6h.

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 unprotected exposure to Sun's UV rays for average individuals.
Note: In May, the UV index of 7 transforms into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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Frequently asked questions

What are May temperatures in Rowlett?

In Rowlett, 81.1°F (27.3°C) is the average high-temperature and 63.9°F (17.7°C) is the average low-temperature during May. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in May is calculated to be 86°F (30°C).

What is the most humid month in Rowlett?

With an average relative humidity of 76%, May is the most humid month in Rowlett.

What is the average humidity in May in Rowlett?

In Rowlett, Texas, the average relative humidity in May is 76%.

What is the rainiest month in Rowlett?

May is the month with the most rainfall in Rowlett. Rain falls for 12.4 days and accumulates 2.4" (61mm) of precipitation.

How much does it rain in Rowlett in May?

In May, in Rowlett, Texas, the rain falls for 12.4 days. Throughout May, 2.4" (61mm) of precipitation is accumulated.

When it does not snow in Rowlett?

In Rowlett, Texas, snow does not fall in March through December.

How many hours of daylight does Rowlett have in May?

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

When are sunrise and sunset in May in Rowlett?

On the first day of May, sunrise is at 6:37 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 8:29 pm CDT.

How many hours of sunshine does Rowlett have in May?

In May, the average sunshine duration is 8.6h.

What is the month with the highest UV index in Rowlett?

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

How high is the UV index in May in Rowlett?

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

Average temperature in May - Rowlett, TX
  • Average high temperature in May: 81.1°F

The warmest month (with the highest average high temperature) is August (95.4°F).
The month with the lowest average high temperature is January (54.1°F).

  • Average low temperature in May: 63.9°F

The month with the highest average low temperature is August (75.2°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

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Average pressure in May
Rowlett, TX

Average pressure in May - Rowlett, TX
  • Average pressure in May: 29.93"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
Rowlett, TX

Average wind speed in May - Rowlett, TX
  • Average wind speed in May: 8.8mph

The windiest months (with the highest average wind speed) are March and April (9.8mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).

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Average humidity in May
Rowlett, TX

Average humidity in May - Rowlett, TX
  • Average humidity in May: 76%

The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (59%).

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Average rainfall in May
Rowlett, TX

Average rainfall in May - Rowlett, TX
  • Average rainfall in May: 2.4"

The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is February (0.79").

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Average rainfall days in May
Rowlett, TX

Average rainfall days in May - Rowlett, TX
  • Average rainfall days in May: 12.4 days

The month with the highest number of rainy days is September (12.5 days).
The month with the least rainy days is January (5.6 days).

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Average snowfall in May
Rowlett, TX

Average snowfall in May - Rowlett, TX
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in May
Rowlett, TX

Average snowfall days in May - Rowlett, TX
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Rowlett, TX

Average daylight in May / Average sunshine in May - Rowlett, 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 August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in May
Rowlett, TX

Average sunshine days in May - Rowlett, TX
  • Average sunshine days in May: 16.3 days

The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is June (16.2 days).

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Average UV index in May
Rowlett, TX

Average UV index in May - Rowlett, 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
Rowlett, TX

Average cloud cover in May - Rowlett, TX
  • Average cloud cover in May: 37

The months with the most cloud cover are February and March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in May
Rowlett, TX

Average visibility in May - Rowlett, 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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Rowlett, Texas, USA

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