Climate and monthly weather forecast
Round Rock, TX

Weather in January

January, the same as December, in Round Rock, Texas, is another mild winter month, with an average temperature varying between 42.4°F (5.8°C) and 58.6°F (14.8°C). The coldest month is January, with an average high-temperature of 58.6°F (14.8°C) and an average low-temperature of 42.4°F (5.8°C). Weather in January »

Weather in February

The last month of the winter, February, is a comfortable month in Round Rock, Texas, with temperature in the range of an average high of 62.4°F (16.9°C) and an average low of 46°F (7.8°C). In February, the average high-temperature is practically the same as in January - an enjoyable 62.4°F (16.9°C). Weather in February »

Weather in March

March, the first month of the spring in Round Rock, is a pleasant month, with an average temperature ranging between max 70.3°F (21.3°C) and min 52.3°F (11.3°C). In Round Rock, the average high-temperature in March slightly increases from a comfortable 62.4°F (16.9°C) in February to a pleasant 70.3°F (21.3°C). Weather in March »

Weather in April

April in Round Rock, Texas, is a warm spring month, with temperature in the range of an average low of 58.3°F (14.6°C) and an average high of 76.8°F (24.9°C). In Round Rock, the average high-temperature in April marginally rises from an agreeable 70.3°F (21.3°C) in March to a warm 76.8°F (24.9°C). Weather in April »

Weather in May

The last month of the spring, May, is also a moderately hot month in Round Rock, Texas, with an average temperature varying between 83.3°F (28.5°C) and 65.7°F (18.7°C). In Round Rock, the average high-temperature in May marginally rises from 76.8°F (24.9°C) in April to a still warm 83.3°F (28.5°C). Weather in May »

Weather in June

The first month of the summer, June, is a tropical month in Round Rock, Texas, with an average temperature fluctuating between 72.1°F (22.3°C) and 90.7°F (32.6°C). In June, the average high-temperature marginally rises from a warm 83.3°F (28.5°C) in May to a hot 90.7°F (32.6°C). Weather in June »

Weather in July

July, like June, is a hot summer month in Round Rock, Texas, with an average temperature varying between 94.6°F (34.8°C) and 74.1°F (23.4°C). In July, the average high-temperature is essentially the same as in June - a still hot 94.6°F (34.8°C). Weather in July »

Weather in August

The last month of the summer, August, is a sweltering month in Round Rock, Texas, with an average temperature fluctuating between 96.1°F (35.6°C) and 75.4°F (24.1°C). The warmest month is August, with an average high-temperature of 96.1°F (35.6°C) and an average low-temperature of 75.4°F (24.1°C). In August, the average heat index is calculated to be a blazing hot 114.8°F (46°C). Weather in August »

Weather in September

September, the first month of the autumn in Round Rock, is still a tropical month, with temperature in the range of an average low of 70.9°F (21.6°C) and an average high of 88.2°F (31.2°C). In Round Rock, the average high-temperature in September marginally drops from a sweltering 96.1°F (35.6°C) in August to a hot 88.2°F (31.2°C). Weather in September »

Weather in October

October, the same as September, is a moderately hot autumn month in Round Rock, Texas, with temperature in the range of an average low of 60.6°F (15.9°C) and an average high of 78.4°F (25.8°C). In Round Rock, the average high-temperature in October decreases from a hot 88.2°F (31.2°C) in September to a moderately hot 78.4°F (25.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Round Rock, is another comfortable month, with an average temperature ranging between max 67.1°F (19.5°C) and min 50.9°F (10.5°C). In Round Rock, the average high-temperature in November decreases from a warm 78.4°F (25.8°C) in October to an enjoyable 67.1°F (19.5°C). Weather in November »

Weather in December

December, the first month of the winter in Round Rock, is also a moderate month, with an average temperature fluctuating between 44.4°F (6.9°C) and 59.4°F (15.2°C). In December, the average high-temperature slightly decreases from a comfortable 67.1°F (19.5°C) in November to a moderate 59.4°F (15.2°C). Weather in December »
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FAQ

What is the coldest month in Round Rock?

The coldest month is January, with an average high-temperature of 58.6°F (14.8°C) and an average low-temperature of 42.4°F (5.8°C).

How many days does it rain in Round Rock?

Throughout the year, there are 139.3 rainfall days, and 26.18" (665mm) of precipitation is accumulated.

When does it snow in Round Rock?

January and February are months with snowfall.

How much does it snow in Round Rock?

Throughout the year, in Round Rock, Texas, there are 1.7 snowfall days, and 0.31" (8mm) of snow is accumulated.

What is the driest month in Round Rock?

The month with the least rainfall in Round Rock is February, when the rain falls for 10.2 days and typically collects 1.14" (29mm) of precipitation.

What is the snowiest month in Round Rock?

The month with the most snowfall in Round Rock, Texas, is February, when snow falls for 0.8 days and typically aggregates up to 0.24" (6mm) of snow.

When it does not snow in Round Rock?

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

When is Daylight Saving Time (DST) in Round Rock?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Round Rock, Texas, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from CDT to CST.

What is the most humid month in Round Rock?

The most humid month in Round Rock is May, with an average relative humidity of 75%.

What is the rainiest month in Round Rock?

The month with the most rainfall in Round Rock is May, when the rain falls for 15.7 days and typically aggregates up to 4.02" (102mm) of precipitation.

When are the longest days in Round Rock?

June has the longest days of the year, with an average of 14h and 5min of daylight.

When is the highest UV index in Round Rock?

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

What month has the most sunshine in Round Rock?

July has the most sunshine of the year in Round Rock, Texas, with an average of 10.4h of sunshine.

What is the warmest month in Round Rock?

August is the warmest month, with an average high-temperature of 96.1°F (35.6°C) and an average low-temperature of 75.4°F (24.1°C).

What is the least humid month in Round Rock?

August is the least humid month in Round Rock, with an average relative humidity of 59%.

What is the month with the shortest days in Round Rock?

December has the shortest days of the year, with an average of 10h and 13min of daylight.

What is the month with the least sunshine in Round Rock?

The month with the least sunshine in Round Rock, Texas, is December, with an average of 5.3h of sunshine.

What is the month with the lowest UV index in Round Rock?

The month with the lowest UV index is December, with an average maximum UV index of 3.

Average temperature
Round Rock, TX

Average temperature - Round Rock, TX

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).

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).

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Average pressure
Round Rock, TX

Average pressure - Round Rock, TX

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed
Round Rock, TX

Average wind speed - Round Rock, TX

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).

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Average rainfall
Round Rock, TX

Average rainfall - Round Rock, TX

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

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Average rainfall days
Round Rock, TX

Average rainfall days - Round Rock, TX

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).

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Average snowfall
Round Rock, TX

Average snowfall - Round Rock, TX

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").

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Average snowfall days
Round Rock, TX

Average snowfall days - Round Rock, TX

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).

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Average daylight / Average sunshine
Round Rock, TX

Average daylight / Average sunshine - Round Rock, TX

The month with the longest days is June (Average daylight: 14h and 5min).
The month with the shortest days is December (Average daylight: 10h and 13min).

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).

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Average sunshine days
Round Rock, TX

Average sunshine days - Round Rock, TX

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).

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Average visibility
Round Rock, TX

Average visibility - Round Rock, TX

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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