May weather forecast
Round Top, TX

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Weather in May

The last month of the spring, May, is another warm month in Round Top, Texas, with an average temperature varying between 66.4°F (19.1°C) and 84°F (28.9°C).

Temperature

The commencement of May sees a minor shift in the average high-temperature, moving from 77.5°F (25.3°C) in April to a still warm 84°F (28.9°C). May sees the temperature falling to a mean low of 66.4°F (19.1°C).

Heat index

In May, the heat index is appraised at a hot 93.2°F (34°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

With an average relative humidity of 79%, May is the most humid month.

Rainfall

May is the month with the most rainfall. Rain falls for 14.3 days and accumulates 2.6" (66mm) of precipitation.

Snowfall

In Round Top, snow does not fall in February through November.

Daylight

In May, the average length of the day is 13h and 41min.
On the first day of the month, sunrise is at 6:42 am and sunset at 8:04 pm. On the last day of May, sunrise is at 6:25 am and sunset at 8:23 pm CDT.

Sunshine

The average sunshine in May is 8.3h.

UV index

In Round Top, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index, 6 during May, leads to the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is May?

The high-temperature during May is 84°F (28.9°C) and the low-temperature is 66.4°F (19.1°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in May is appraised at 93.2°F (34°C).

What is the most humid month?

The most humid month is May, with an average relative humidity of 79%.

What is the average humidity in May?

In Round Top, the average relative humidity in May is 79%.

What is the wettest month?

The month with the most rainfall is May, when the rain falls for 14.3 days and typically aggregates up to 2.6" (66mm) of precipitation.

How much does it rain in May?

In May, the rain falls for 14.3 days. Throughout May, 2.6" (66mm) of precipitation is accumulated.

When it does not snow?

In Round Top, snow does not fall in February through November.

What is the average length of the day in May?

In Round Top, the average day length in May is 13h and 41min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:42 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 8:23 pm CDT.

How many hours of sunshine does Round Top have in May?

In Round Top, the average sunshine duration in May is 8.3h.

What is the UV index intensity in May?

In May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability 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
Round Top, TX

Average temperature in May - Round Top, TX
  • Average high temperature in May: 84°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 (59.4°F).

  • Average low temperature in May: 66.4°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (43.7°F).

Average pressure in May
Round Top, TX

Average pressure in May - Round Top, 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 (29.92"Hg).

Average wind speed in May
Round Top, TX

Average wind speed in May - Round Top, TX
  • Average wind speed in May: 8.2mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is September (6mph).

Average humidity in May
Round Top, TX

Average humidity in May - Round Top, TX
  • Average humidity in May: 79%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (66%).

Average rainfall in May
Round Top, TX

Average rainfall in May - Round Top, TX
  • Average rainfall in May: 2.6"

The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is February (0.59").

Average rainfall days in May
Round Top, TX

Average rainfall days in May - Round Top, TX
  • Average rainfall days in May: 14.3 days

The month with the highest number of rainy days is September (15.6 days).
The month with the least rainy days is January (8.1 days).

Average snowfall in May
Round Top, TX

Average snowfall in May - Round Top, TX
  • Average snowfall in May: 0"

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

Average snowfall days in May
Round Top, TX

Average snowfall days in May - Round Top, TX
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in May /
Average sunshine in May
Round Top, TX

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

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

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in May
Round Top, TX

Average sunshine days in May - Round Top, TX
  • Average sunshine days in May: 13 days

The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is June (11 days).

Average UV index in May
Round Top, TX

Average UV index in May - Round Top, TX
  • Average UV index in May: 6

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in May
Round Top, TX

Average cloud cover in May - Round Top, TX
  • Average cloud cover in May: 45

The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in May
Round Top, TX

Average visibility in May - Round Top, TX
  • Average visibility in May: 5mi

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

Round Top, Texas, USA

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