Round Rock Weather in December

During December, Round Rock experiences moderate daytime temperatures of 17°C (63°F) and cooler nights around 4°C (39°F). As part of the winter season, some rainfall is to be expected.

Rainfall in Round Rock in December

Looking at the last 30 years, the data shows about 9 days with rain, averaging 48 mm (1.9 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Round Rock in December

In December, expect moderate temperatures in Round Rock, with highs of 17°C (63°F) and lows of 4°C (39°F) at night. December marks the winter season. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to 4°C (39°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Round Rock in December

With about 154 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Wind Speed in Round Rock in December

Wind speeds average 3 m/s (6 knots) during December. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.

If you prefer dry days with pleasant temperatures, March, April and November typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Round Rock's climate page.

Round Rock Temperature in December

Min Temperature 4°C (39°F)  

Max Temperature 17°C (63°F)  

Chance of Rain 29%  

Precipitation 48 mm (1.9 in)  

Rainy days 9 days  

Humidity 68% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 154 hours *  

Percentage Sunshine 49% *  

* Data from: Austin, the United States of America (23 KM, 14 Miles).

What to Wear in Round Rock in December

For Round Rock in December, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Round Rock in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

6/10

Walking

6/10

Barbeque

6/10

Camping

5/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Round Rock's climate page.

More climate data for Round Rock

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Round Rock climate overview or explore weather in the United States of America.