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 hot month, with an average temperature fluctuating between 69.4°F (20.8°C) and 90°F (32.2°C).

Temperature

May's onset brings a subtle temperature rise, moving from a moderately hot 84.2°F (29°C) in April to a tropical 90°F (32.2°C). May witnesses an average nighttime temperature of 69.4°F (20.8°C) in Del Rio.

Heat index

The heat index for May is appraised at a very hot 98.6°F (37°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Keep in mind the heat index values are meant for areas in shade and with light wind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In May, the average relative humidity is 57%.

Rainfall

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.

Snowfall

March through December are months without snowfall.

Daylight

The average length of the day in May in Del Rio is 13h and 38min.
On the first day of May in Del Rio, 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 May, the average sunshine is 9.4h.

UV index

The average daily maximum UV index in May is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In May, the maximum UV index of 7 translates into these guidelines:
Prevent overexposure. Protection from the sun's harmful effects is needed. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

How hot is it in Del Rio in May?

In May, in Del Rio, the average high-temperature is 90°F (32.2°C), and the average low-temperature is 69.4°F (20.8°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in May is appraised at 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 in Del Rio?

May is the month with the most rainfall in Del Rio. Rain falls for 11.9 days and accumulates 2.01" (51mm) of precipitation.

How much does it rain in Del Rio in May?

In May, in Del Rio, Texas, the rain falls for 11.9 days. Throughout May, 2.01" (51mm) of precipitation is accumulated.

When it does not snow in Del Rio?

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

What is the average length of the day in May in Del Rio?

In Del Rio, Texas, the average day length in May is 13h and 38min.

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

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

How long on average sun shines in May in Del Rio?

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

What is the UV index intensity in May in Del Rio?

In May, the average daily maximum UV index is 7. A UV Index reading 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
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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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Del Rio, Texas, USA

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