May weather forecast
Diana, TX

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Weather in May

The last month of the spring, May, is another warm month in Diana, Texas, with an average temperature fluctuating between 83.5°F (28.6°C) and 62.8°F (17.1°C).

Temperature

May's arrival sees a mild rise in the average high-temperature, transitioning from April's 75.6°F (24.2°C) to a still warm 83.5°F (28.6°C). Throughout May, Diana witnesses a nighttime temperature average of 62.8°F (17.1°C).

Heat index

The heat index value for May is evaluated at a tropical 91.4°F (33°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

In Diana, the average relative humidity in May is 75%.

Rainfall

In May, in Diana, the rain falls for 13.8 days. Throughout May, 2.87" (73mm) of precipitation is accumulated. In Diana, during the entire year, the rain falls for 150.9 days and collects up to 31.42" (798mm) of precipitation.

Snowfall

In Diana, snow does not fall in April through November.

Daylight

In Diana, the average length of the day in May is 13h and 51min.
On the first day of the month, sunrise is at 6:31 am and sunset at 8:01 pm. On the last day of May, in Diana, sunrise is at 6:11 am and sunset at 8:21 pm CDT.

Sunshine

In May, the average sunshine is 9.1h.

UV index

The months with the highest UV index in Diana are May through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: A typical high UV index of 7 in May suggests the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
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Frequently asked questions

Is it hot in Diana during May?

The high-temperature, in May, in Diana, is 83.5°F (28.6°C), while the low-temperature averages to 62.8°F (17.1°C). In May, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 91.4°F (33°C).

What is the average humidity in May in Diana?

In Diana, Texas, the average relative humidity in May is 75%.

How many days does it rain in May in Diana?

In Diana, during May, the rain falls for 13.8 days and regularly aggregates up to 2.87" (73mm) of precipitation.

When it does not snow in Diana?

In Diana, snow does not fall in April through November.

How many hours of daylight does Diana have in May?

In May, the average day length in Diana is 13h and 51min.

When is the sunrise / sunset in May in Diana?

On the first day of May in Diana, Texas, sunrise is at 6:31 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 8:21 pm CDT.

How long on average sun shines in May in Diana?

The average sunshine duration in May is 9.1h.

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

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

What is the UV index reading in May in Diana?

The average daily maximum UV index in May is 7. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe 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
Diana, TX

Average temperature in May - Diana, TX
  • Average high temperature in May: 83.5°F

The warmest month (with the highest average high temperature) is August (94.8°F).
The month with the lowest average high temperature is January (53.8°F).

  • Average low temperature in May: 62.8°F

The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).

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Average pressure in May
Diana, TX

Average pressure in May - Diana, TX
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Diana, TX

Average wind speed in May - Diana, TX
  • Average wind speed in May: 6.4mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in May
Diana, TX

Average humidity in May - Diana, TX
  • Average humidity in May: 75%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (66%).

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Average rainfall in May
Diana, TX

Average rainfall in May - Diana, TX
  • Average rainfall in May: 2.87"

The wettest month (with the highest rainfall) is April (3.78").
The driest month (with the least rainfall) is September (1.65").

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Average rainfall days in May
Diana, TX

Average rainfall days in May - Diana, TX
  • Average rainfall days in May: 13.8 days

The month with the highest number of rainy days is August (15.1 days).
The month with the least rainy days is October (9.9 days).

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Average snowfall in May
Diana, TX

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

The month with the highest snowfall is February (0.63").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in May
Diana, TX

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

The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Diana, 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: 9h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in May
Diana, TX

Average sunshine days in May - Diana, TX
  • Average sunshine days in May: 14.2 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is February (12.8 days).

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Average UV index in May
Diana, TX

Average UV index in May - Diana, 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, November and December (UV index 3).

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Average cloud cover in May
Diana, TX

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

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in May
Diana, TX

Average visibility in May - Diana, TX
  • Average visibility in May: 6mi

The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).

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Diana, Texas, USA

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