As of 04:06 CDT

Round Rock, TX weather in December

79°

Round Rock, Sunday, 9 August, 04:06

Partly cloudy. Feels like 79°. High 98°, low 77°.

Pressure30.00 inHg

Wind3 mph S

Humidity82%

Visibility6.2 mi

Dew point72°

See detailed hourly forecast

In December, Round Rock, TX averages a high of 61.8° and a low of 44.8°. About 2.5 inches of precipitation fall over the month (7 wet days). The record high is 83.8° (2005) and the record low 9.1° (1989). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	63.9°	45.3°	12%	79° (1970)	30.4° (1976)
2	65.3°	47.3°	23%	79° (2007)	29.5° (1985)
3	64.9°	48.2°	23%	80.2° (1999)	30.9° (1985)
4	63.9°	46.6°	22%	81.7° (1977)	30.6° (2006)
5	63.5°	47.5°	28%	79.7° (1995)	26.1° (2009)
6	62.8°	46.2°	23%	80.2° (1966)	28.6° (1972)
7	61.7°	45.7°	18%	80.6° (1966)	26.4° (2013)
8	63.9°	46.4°	28%	78.4° (2022)	26.2° (2005)
9	64°	45.9°	25%	80.1° (2019)	25.7° (2005)
10	60.4°	44.8°	28%	81.7° (2021)	24.6° (1978)
11	61.7°	44.2°	28%	79° (1987)	27.1° (1978)
12	62.4°	45°	22%	80.4° (1973)	26.8° (1962)
13	62.4°	45.3°	37%	75.7° (1995)	25.7° (1962)
14	62.8°	46°	32%	77.7° (2024)	24.3° (1985)
15	62.1°	44.8°	35%	78.3° (2021)	25.7° (1963)
16	59.9°	43.9°	25%	80.1° (2021)	19.9° (1989)
17	60.3°	43.5°	22%	77.9° (2024)	23.9° (1972)
18	61.5°	44.2°	20%	77.2° (2012)	25.5° (2016)
19	61.9°	45°	23%	79.3° (2012)	23.4° (1996)
20	61.5°	45.7°	18%	76.5° (1978)	24.1° (1996)
21	62.2°	45°	23%	80.6° (2010)	27.9° (1973)
22	61.7°	43.7°	13%	76.1° (1970)	16.7° (1989)
23	59.5°	43.9°	22%	79.7° (2025)	9.1° (1989)
24	58.5°	42.3°	18%	79.7° (1977)	15.1° (1983)
25	58.1°	40.5°	20%	77.9° (2025)	11.7° (1983)
26	59.9°	42.6°	25%	82° (2025)	18.1° (1983)
27	62.2°	43.3°	25%	83.8° (2005)	28.2° (2022)
28	60.4°	45.1°	23%	78.6° (2025)	28° (1983)
29	60.4°	44.1°	20%	80.1° (2021)	18.1° (1983)
30	61°	43.9°	28%	81° (2024)	18° (1983)
31	60.1°	43°	18%	79.2° (2021)	23.5° (1983)