Weather on March 15
Round Rock, TX
55 Years of Data
Avg High
77°F
Avg Low
52°F
Warmest
2008
78°F avg
Coldest
2009
44°F avg
About This Date
March 15th in Round Rock, TX typically brings pleasant spring weather, with average highs around 77°F and lows near 52°F — a 25°F daily swing. Over 31 years of records, the warmest March 15th was in 2008 (78°F average), while the coldest was 2009 (44°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 23% of March 15th dates historically.
Planning for March 15th in Round Rock, TX? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 84° | 58° | 71° | — | — |
| 2025 | 95° | 56° | 75° | 0.18" | — |
| 2024 | 78° | 68° | 73° | 0.18" | — |
| 2023 | 67° | 46° | 56° | — | — |
| 2022 | 80° | 49° | 64° | — | — |
| 2021 | 77° | 45° | 61° | — | — |
| 2020 | 81° | 58° | 69° | — | — |
| 2019 | 74° | 47° | 60° | — | — |
| 2018 | 72° | 41° | 56° | — | — |
| 2017 | 71° | 37° | 54° | — | — |
| 2016 | 93° | 51° | 72° | — | — |
| 2015 | 77° | 49° | 63° | — | — |
| 2014 | 71° | 50° | 61° | 0.08" | — |
| 2013 | 78° | 48° | 63° | — | — |
| 2012 | 78° | 66° | 72° | — | — |
| 2011 | 71° | 40° | 55° | — | — |
| 2010 | 83° | 44° | 63° | — | — |
| 2009coldest | 48° | 40° | 44° | 0.03" | — |
| 2008warmest | 95° | 60° | 78° | — | — |
| 1982 | 79° | 68° | 73° | — | — |
| 1981 | 75° | 55° | 65° | — | — |
| 1980 | 75° | 62° | 69° | — | — |
| 1979 | 60° | 45° | 52° | — | — |
| 1978 | 77° | 45° | 61° | — | — |
| 1977 | 85° | 63° | 74° | — | — |
| 1976 | 70° | 50° | 60° | 0.05" | — |
| 1975 | 65° | 43° | 54° | — | — |
| 1974 | 79° | 53° | 66° | 0.3" | — |
| 1973 | 79° | 59° | 69° | 0.03" | — |
| 1972 | 81° | 61° | 71° | — | — |
| 1971 | 82° | 43° | 62° | — | — |
31 years of data from GEORGETOWN