June weather forecast
Round Rock, TX

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Weather in June

June marks the official beginning of summer in Round Rock. The weather becomes characterized by hot temperatures, clear skies, and long, sunny days. Sun protection becomes essential as UV indices reach their highest. Despite being a summer month, June sees a decrease in rainfall from May, making it a relatively drier month. The lighter winds also testify for the calm, hot summer days in the city.

Temperature

The onset of June introduces a subtle rise in the average high-temperature, nudging from a warm 83.3°F (28.5°C) in May to a hot 90.7°F (32.6°C). During the nights in June, Round Rock experiences a consistent average temperature of 72.1°F (22.3°C).

Heat index

In June, the heat index is computed to be a scorching 109.4°F (43°C). Keep alert: Heat cramps and heat exhaustion are probable. Heatstroke is a potential danger with continued physical activity.
In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for 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.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In Round Rock, the average relative humidity in June is 72%.

Rainfall

In Round Rock, in June, during 12.4 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. Throughout the year, there are 139.3 rainfall days, and 26.18" (665mm) of precipitation is accumulated.

Snowfall

In Round Rock, snow does not fall in March through December.

Daylight

The month with the longest days is June, with an average of 14h and 6min of daylight.
On the first day of June, sunrise is at 6:28 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 8:37 pm CDT.

Sunshine

The average sunshine in June in Round Rock is 9.5h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In June, a daily UV index of 7 turns into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in Round Rock in June?

The average high-temperature and low-temperature during June are 90.7°F (32.6°C) and 72.1°F (22.3°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in June is computed to be 109.4°F (43°C).

What is the average humidity in June in Round Rock?

The average relative humidity in June is 72%.

How much does it rain in Round Rock in June?

In June, in Round Rock, Texas, the rain falls for 12.4 days. Throughout June, 2.09" (53mm) of precipitation is accumulated.

When it does not snow in Round Rock?

In Round Rock, snow does not fall in March through December.

When are the longest days in Round Rock?

With an average of 14h and 6min of daylight, June has the longest days of the year in Round Rock, Texas.

What is the average length of the day in June in Round Rock?

The average day length in June is 14h and 5min.

When are sunrise and sunset in June in Round Rock?

On the first day of June, sunrise is at 6:28 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 8:37 pm CDT.

How many hours of sunshine does Round Rock have in June?

In June, the average sunshine duration in Round Rock, Texas, is 9.5h.

When is the highest UV index in Round Rock?

The months with the highest UV index in Round Rock are June through August, with an average maximum UV index of 7.

What is the UV index intensity in June in Round Rock?

The average daily maximum UV index in June in Round Rock, Texas, is 7. A UV Index of 6 to 7 symbolizes a high health risk 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 June
Round Rock, TX

Average temperature in June - Round Rock, TX
  • Average high temperature in June: 90.7°F

The warmest month (with the highest average high temperature) is August (96.1°F).
The month with the lowest average high temperature is January (58.6°F).

  • Average low temperature in June: 72.1°F

The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

Average pressure in June
Round Rock, TX

Average pressure in June - Round Rock, TX
  • Average pressure in June: 29.91"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 June
Round Rock, TX

Average wind speed in June - Round Rock, TX
  • Average wind speed in June: 8mph

The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is September (6.5mph).

Average humidity in June
Round Rock, TX

Average humidity in June - Round Rock, TX
  • Average humidity in June: 72%

The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (59%).

Average rainfall in June
Round Rock, TX

Average rainfall in June - Round Rock, TX
  • Average rainfall in June: 2.09"

The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is February (1.14").

Average rainfall days in June
Round Rock, TX

Average rainfall days in June - Round Rock, TX
  • Average rainfall days in June: 12.4 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in June
Round Rock, TX

Average snowfall in June - Round Rock, TX
  • Average snowfall in June: 0"

The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in June
Round Rock, TX

Average snowfall days in June - Round Rock, TX
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

Average daylight in June /
Average sunshine in June
Round Rock, TX

Average daylight in June / Average sunshine in June - Round Rock, TX
  • Average daylight in June: 14h and 1min

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 June: 9h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in June
Round Rock, TX

Average sunshine days in June - Round Rock, TX
  • Average sunshine days in June: 15.5 days

The month with the most sunshine days is January (21.1 days).
The months with the least sunshine days are April, May and September (13.3 days).

Average UV index in June
Round Rock, TX

Average UV index in June - Round Rock, TX
  • Average UV index in June: 7

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 June
Round Rock, TX

Average cloud cover in June - Round Rock, TX
  • Average cloud cover in June: 35

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in June
Round Rock, TX

Average visibility in June - Round Rock, TX
  • Average visibility in June: 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).

Round Rock, Texas, USA

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