Weather on December 31

Round Rock, TX

55 Years of Data

Avg High
62°F
Avg Low
37°F
Warmest
2024
66°F avg
Coldest
1976
34°F avg

About This Date

December 31st in Round Rock, TX typically brings mild winter weather, with average highs around 62°F and lows near 37°F — a 25°F daily swing. Over 30 years of records, the warmest December 31st was in 2024 (66°F average), while the coldest was 1976 (34°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 33% of December 31st dates historically, with the wettest December 31st recording 4.6" of rain.

Planning for December 31st in Round Rock, TX? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.

Warming Trend
0.6°F per decade on this date
YearHighLowAvgPrecipSnow
202557°33°45°
2024warmest86°46°66°
202367°37°52°
202263°42°52°0.05"
202176°54°65°
202073°37°55°4.22"
201960°32°46°
201842°37°40°0.76"
201763°38°50°
201654°45°49°
201554°38°46°
201444°34°39°0.03"
201341°31°36°
201247°29°38°0.25"
201173°39°56°
201074°57°65°
200963°39°51°
200873°37°55°
198245°31°38°1.65"
198178°38°58°0.2"
198073°29°51°
197956°32°44°
197850°30°40°4.6"
197766°49°57°
1976coldest51°17°34°
197569°34°51°
197462°45°53°0.84"
197333°
197262°30°46°
197163°50°56°0.33"
30 years of data from GEORGETOWN

Browse Weather History

Weather data provided by NOAA Climate Data Online. Not for critical planning.

December 31st Weather in Round Rock, TX - 55 Years of History