May weather forecast
Del Rio, TX

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Weather in May

May, the last month of the spring in Del Rio, is a tropical month, with an average temperature fluctuating between 69.4°F (20.8°C) and 90°F (32.2°C).

Temperature

Del Rio experiences a minor temperature shift with the start of May, with average high-temperatures moving from a warm 84.2°F (29°C) in April to a tropical 90°F (32.2°C). The average low-temperature, in May, is an agreeable 69.4°F (20.8°C).

Heat index

The heat index value for May is calculated to be a torrid 98.6°F (37°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Factoring in the heat index, values are geared towards shaded areas with light breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in May is 57%.

Rainfall

The month with the most rainfall in Del Rio is May, when the rain falls for 11.9 days and typically aggregates up to 2.01" (51mm) of precipitation.

Snowfall

March through December are months without snowfall in Del Rio.

Daylight

In Del Rio, the average length of the day in May is 13h and 38min.
On the first day of May, sunrise is at 7:00 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 8:38 pm CDT.

Sunshine

In Del Rio, the average sunshine in May is 9.4h.

UV index

The average daily maximum UV index in May is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In May, the maximum UV index of 7 translates into these guidelines:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. 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 guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.

Frequently asked questions

How hot does it get in May?

The high-temperature, in May, in Del Rio, is 90°F (32.2°C), while the low-temperature averages to 69.4°F (20.8°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in May is calculated to be 98.6°F (37°C).

What is the average humidity in May?

In Del Rio, the average relative humidity in May is 57%.

What is the wettest month?

The month with the most rainfall is May, when the rain falls for 11.9 days and typically aggregates up to 2.01" (51mm) of precipitation.

How much does it rain in May?

In Del Rio, in May, it is raining for 11.9 days, with typically 2.01" (51mm) of accumulated precipitation.

When it does not snow in Del Rio?

In Del Rio, snow does not fall in March through December.

How many hours of daylight does Del Rio have in May?

In May, the average day length is 13h and 38min.

When is the sunrise / sunset in May in Del Rio?

On the first day of May, sunrise is at 7:00 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 8:38 pm CDT.

How many hours of sunshine does Del Rio have in May?

In Del Rio, the average sunshine duration in May is 9.4h.

What is the UV index reading in May?

In May, the average daily maximum UV index is 7. A UV Index reading 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
Del Rio, TX

Average temperature in May - Del Rio, TX
  • Average high temperature in May: 90°F

The warmest month (with the highest average high temperature) is August (97.9°F).
The month with the lowest average high temperature is January (63.3°F).

  • Average low temperature in May: 69.4°F

The month with the highest average low temperature is August (78.8°F).
The coldest month (with the lowest average low temperature) is January (45.1°F).

Average pressure in May
Del Rio, TX

Average pressure in May - Del Rio, TX
  • Average pressure in May: 29.88"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).

Average wind speed in May
Del Rio, TX

Average wind speed in May - Del Rio, TX
  • Average wind speed in May: 12.6mph

The windiest month (with the highest average wind speed) is June (12.8mph).
The calmest month (with the lowest average wind speed) is December (8.5mph).

Average humidity in May
Del Rio, TX

Average humidity in May - Del Rio, TX
  • Average humidity in May: 57%

The month with the highest relative humidity is November (60%).
The month with the lowest relative humidity is August (47%).

Average rainfall in May
Del Rio, TX

Average rainfall in May - Del Rio, TX
  • Average rainfall in May: 2.01"

The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is January (0.24").

Average rainfall days in May
Del Rio, TX

Average rainfall days in May - Del Rio, TX
  • Average rainfall days in May: 11.9 days

The month with the highest number of rainy days is May (11.9 days).
The month with the least rainy days is January (3.3 days).

Average snowfall in May
Del Rio, TX

Average snowfall in May - Del Rio, TX
  • Average snowfall in May: 0"

The months with the highest snowfall are January and February (0.04").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in May
Del Rio, TX

Average snowfall days in May - Del Rio, TX
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Del Rio, TX

Average daylight in May / Average sunshine in May - Del Rio, TX
  • Average daylight in May: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in May: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The months with the least sunshine are November and December (Average sunshine: 6h and 18min).

Average sunshine days in May
Del Rio, TX

Average sunshine days in May - Del Rio, TX
  • Average sunshine days in May: 15.5 days

The month with the most sunshine days is January (26.3 days).
The month with the least sunshine days is May (15.5 days).

Average UV index in May
Del Rio, TX

Average UV index in May - Del Rio, TX
  • Average UV index in May: 7

The months with the highest UV index are July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in May
Del Rio, TX

Average cloud cover in May - Del Rio, TX
  • Average cloud cover in May: 31

The months with the most cloud cover are March and May (Cloud cover 31).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in May
Del Rio, TX

Average visibility in May - Del Rio, 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).

Del Rio, Texas, USA

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