Weather on December 17
Round Rock, TX
55 Years of Data
Avg High
61°F
Avg Low
38°F
Warmest
2021
72°F avg
Coldest
1979
30°F avg
About This Date
December 17th in Round Rock, TX typically brings mild winter weather, with average highs around 61°F and lows near 38°F. Over 30 years of records, the warmest December 17th was in 2021 (72°F average), while the coldest was 1979 (30°F) — a 42°F range across recorded history. Rain or other precipitation has occurred on about 10% of December 17th dates historically, with the wettest December 17th recording 4.09" of rain.
Planning for December 17th in Round Rock, TX? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 58° | 41° | 49° | 0.18" | — |
| 2024 | 76° | 63° | 69° | — | — |
| 2023 | 62° | 34° | 48° | — | — |
| 2022 | 52° | 40° | 46° | — | — |
| 2021warmest | 75° | 68° | 72° | — | — |
| 2020 | 53° | 28° | 41° | — | — |
| 2019 | 55° | 33° | 44° | — | — |
| 2018 | 62° | 40° | 51° | — | — |
| 2017 | 50° | 42° | 46° | 4.09" | — |
| 2016 | 65° | 49° | 57° | — | — |
| 2015 | 60° | 34° | 47° | — | — |
| 2014 | 60° | 43° | 51° | — | — |
| 2013 | 67° | 32° | 49° | — | — |
| 2012 | 68° | 42° | 55° | — | — |
| 2011 | 54° | 43° | 48° | — | — |
| 2010 | 60° | 39° | 50° | — | — |
| 2009 | 46° | 36° | 41° | 1.04" | — |
| 2008 | 39° | 27° | 33° | — | — |
| 1982 | 70° | 40° | 55° | — | — |
| 1981 | 69° | 28° | 49° | — | — |
| 1980 | 74° | 38° | 56° | — | — |
| 1979coldest | 40° | 20° | 30° | — | — |
| 1978 | 60° | 35° | 48° | — | — |
| 1977 | 82° | 50° | 66° | — | — |
| 1976 | 66° | 31° | 48° | — | — |
| 1975 | 53° | 34° | 43° | — | — |
| 1974 | 65° | 30° | 47° | — | — |
| 1973 | — | 32° | — | — | — |
| 1972 | 55° | 16° | 35° | — | — |
| 1971 | 65° | 48° | 56° | — | — |
30 years of data from GEORGETOWN