May weather forecast
South Mountain, TX

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Weather in May

May, the last month of the spring in South Mountain, is also a moderately hot month, with an average temperature varying between 82.6°F (28.1°C) and 64.6°F (18.1°C).

Temperature

South Mountain in May experiences a slight uptick in the average high-temperature, adjusting from April's moderately hot 76.3°F (24.6°C) to a still warm 82.6°F (28.1°C). In South Mountain, May nights cool down to an average of 64.6°F (18.1°C).

Heat index

The heat index value during May is evaluated at a hot 87.8°F (31°C). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.
One should consider that heat index numbers are for shaded settings and light wind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

The most humid month is May, with an average relative humidity of 74%.

Rainfall

In South Mountain, in May, it is raining for 14.8 days, with typically 3.23" (82mm) of accumulated precipitation. Throughout the year, there are 129.1 rainfall days, and 25.71" (653mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

The average length of the day in May is 13h and 46min.
On the first day of the month, sunrise is at 6:44 am and sunset at 8:10 pm. On the last day of May, sunrise is at 6:26 am and sunset at 8:30 pm CDT.

Sunshine

In May, the average sunshine is 8.6h.

UV index

In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In May, an average UV index of 6 transforms into the following instructions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is May?

May temperatures vary between a high-temperature of 82.6°F (28.1°C) and a low-temperature of 64.6°F (18.1°C). In May, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What is the most humid month?

With an average relative humidity of 74%, May is the most humid month.

What is the average humidity in May?

In May, the average relative humidity is 74%.

How many days does it rain in May?

In South Mountain, in May, it is raining for 14.8 days, with typically 3.23" (82mm) of accumulated precipitation.

When it does not snow?

April through November are months without snowfall.

What is the average length of the day in May?

In South Mountain, the average day length in May is 13h and 46min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:44 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 8:30 pm CDT.

How long on average sun shines in May?

In South Mountain, the average sunshine duration in May is 8.6h.

How high is the UV index in May?

In South Mountain, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
South Mountain, TX

Average temperature in May - South Mountain, TX
  • Average high temperature in May: 82.6°F

The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (57°F).

  • Average low temperature in May: 64.6°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (40.6°F).

Average pressure in May
South Mountain, TX

Average pressure in May - South Mountain, 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 (29.91"Hg).

Average wind speed in May
South Mountain, TX

Average wind speed in May - South Mountain, TX
  • Average wind speed in May: 9.9mph

The windiest month (with the highest average wind speed) is March (11mph).
The calmest month (with the lowest average wind speed) is September (7.3mph).

Average humidity in May
South Mountain, TX

Average humidity in May - South Mountain, TX
  • Average humidity in May: 74%

The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (56%).

Average rainfall in May
South Mountain, TX

Average rainfall in May - South Mountain, TX
  • Average rainfall in May: 3.23"

The wettest month (with the highest rainfall) is October (3.86").
The driest month (with the least rainfall) is November (1.18").

Average rainfall days in May
South Mountain, TX

Average rainfall days in May - South Mountain, TX
  • Average rainfall days in May: 14.8 days

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (6.9 days).

Average snowfall in May
South Mountain, TX

Average snowfall in May - South Mountain, TX
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in May
South Mountain, TX

Average snowfall days in May - South Mountain, TX
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (1.2 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
South Mountain, TX

Average daylight in May / Average sunshine in May - South Mountain, TX
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in May
South Mountain, TX

Average sunshine days in May - South Mountain, TX
  • Average sunshine days in May: 13.5 days

The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is May (13.5 days).

Average UV index in May
South Mountain, TX

Average UV index in May - South Mountain, TX
  • Average UV index in May: 6

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

Average cloud cover in May
South Mountain, TX

Average cloud cover in May - South Mountain, TX
  • Average cloud cover in May: 39

The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in May
South Mountain, TX

Average visibility in May - South Mountain, 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).

South Mountain, Texas, USA

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