Weather on December 31
Round Rock, TX
55 Years of Data
About This Date
December 31st in Round Rock, TX typically brings mild winter weather, with average highs around 61°F and lows near 37°F. Over 54 years of records, the warmest December 31st was in 1992 (72°F average), while the coldest was 1990 (25°F) — a 47°F range across recorded history. Rain or other precipitation has occurred on about 30% of December 31st dates historically, with the wettest December 31st recording 4.6" of rain. The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
Planning for December 31st in Round Rock, TX? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 57° | 33° | 45° | — | — |
| 2024 | 86° | 46° | 66° | — | — |
| 2023 | 67° | 37° | 52° | — | — |
| 2022 | 63° | 42° | 52° | 0.05" | — |
| 2021 | 76° | 54° | 65° | — | — |
| 2020 | 73° | 37° | 55° | 4.22" | — |
| 2019 | 60° | 32° | 46° | — | — |
| 2018 | 42° | 37° | 40° | 0.76" | — |
| 2017 | 63° | 38° | 50° | — | — |
| 2016 | 54° | 45° | 49° | — | — |
| 2015 | 54° | 38° | 46° | — | — |
| 2014 | 44° | 34° | 39° | 0.03" | — |
| 2013 | 41° | 31° | 36° | — | — |
| 2012 | 47° | 29° | 38° | 0.25" | — |
| 2011 | 73° | 39° | 56° | — | — |
| 2010 | 74° | 57° | 65° | — | — |
| 2009 | 63° | 39° | 51° | — | — |
| 2008 | 73° | 37° | 55° | — | — |
| 2007 | 68° | 29° | 48° | — | — |
| 2006 | 64° | 38° | 51° | — | — |
| 2005 | 70° | 33° | 51° | — | — |
| 2003 | 60° | 33° | 47° | — | — |
| 2002 | 74° | 44° | 59° | 2.06" | — |
| 2001 | 46° | 29° | 37° | — | — |
| 2000 | 48° | 28° | 38° | — | — |
| 1999 | 79° | 43° | 61° | — | — |
| 1998 | 61° | 32° | 46° | — | — |
| 1997 | 69° | 35° | 52° | — | — |
| 1996 | 72° | 45° | 58° | — | — |
| 1995 | 63° | 31° | 47° | 0.08" | — |
| 1994 | 59° | 49° | 54° | — | — |
| 1993 | 54° | 33° | 43° | — | — |
| 1992warmest | 79° | 65° | 72° | — | — |
| 1991 | 65° | 36° | 50° | — | — |
| 1990coldest | 33° | 17° | 25° | 0.18" | — |
| 1989 | 44° | 37° | 41° | — | — |
| 1988 | 51° | 43° | 47° | 0.3" | — |
| 1987 | 50° | 29° | 39° | 0.15" | — |
| 1986 | 58° | 34° | 46° | — | — |
| 1985 | 71° | 46° | 59° | — | — |
| 1984 | 71° | 53° | 62° | 2.67" | — |
| 1983 | 40° | 22° | 31° | — | — |
| 1982 | 45° | 31° | 38° | 1.65" | — |
| 1981 | 78° | 38° | 58° | 0.2" | — |
| 1980 | 73° | 29° | 51° | — | — |
| 1979 | 56° | 32° | 44° | — | — |
| 1978 | 50° | 30° | 40° | 4.6" | — |
| 1977 | 66° | 49° | 57° | — | — |
| 1976 | 51° | 17° | 34° | — | — |
| 1975 | 69° | 34° | 51° | — | — |
| 1974 | 62° | 45° | 53° | 0.84" | — |
| 1973 | — | 33° | — | — | — |
| 1972 | 62° | 30° | 46° | — | — |
| 1971 | 63° | 50° | 56° | 0.33" | — |
Round Rock, TX Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Round Rock, TX Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Round Rock, TX Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Round Rock, TX
Round Rock, TX has no months that meet our "pleasant" threshold — every season has tradeoffs.