Weather on December 30
Round Rock, TX
55 Years of Data
About This Date
December 30th in Round Rock, TX typically brings mild winter weather, with average highs around 61°F and lows near 40°F. Over 30 years of records, the warmest December 30th was in 2020 (66°F average), while the coldest was 1982 (35°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 27% of December 30th dates historically.
Planning for December 30th in Round Rock, TX? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 50° | 39° | 45° | — | — |
| 2024 | 73° | 46° | 60° | — | — |
| 2023 | 57° | 34° | 45° | — | — |
| 2022 | 72° | 50° | 61° | — | — |
| 2021 | 76° | 53° | 64° | — | — |
| 2020warmest | 72° | 61° | 66° | — | — |
| 2019 | 63° | 38° | 50° | — | — |
| 2018 | 45° | 37° | 41° | — | — |
| 2017 | 49° | 38° | 43° | — | — |
| 2016 | 59° | 45° | 52° | — | — |
| 2015 | 48° | 35° | 42° | 0.01" | — |
| 2014 | 63° | 31° | 47° | — | — |
| 2013 | 61° | 32° | 46° | — | — |
| 2012 | 51° | 27° | 39° | — | — |
| 2011 | 71° | 39° | 55° | — | — |
| 2010 | 70° | 55° | 62° | 0.01" | — |
| 2009 | 40° | 38° | 39° | 0.41" | — |
| 2008 | 71° | 33° | 52° | — | — |
| 1982coldest | 46° | 24° | 35° | 0.25" | — |
| 1981 | 56° | 35° | 45° | — | — |
| 1980 | 66° | 35° | 51° | — | — |
| 1979 | 55° | 33° | 44° | — | — |
| 1978 | 60° | — | — | 0.04" | — |
| 1977 | 60° | 49° | 54° | 0.02" | — |
| 1976 | 77° | 49° | 63° | — | — |
| 1975 | 55° | 29° | 42° | — | — |
| 1974 | 68° | 55° | 62° | 0.05" | — |
| 1973 | — | 35° | — | — | — |
| 1972 | 71° | 52° | 61° | — | — |
| 1971 | 75° | 42° | 59° | 0.04" | — |
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
Most pleasant months in Round Rock, TX: February, March, April, October, November.
What to expect on December 30th
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
December 30th outlook →