Weather on June 21
Round Rock, TX
55 Years of Data
Avg High
93°F
Avg Low
72°F
Warmest
2011
89°F avg
Coldest
1973
75°F avg
About This Date
June 21st in Round Rock, TX typically brings hot summer weather, with average highs around 93°F and lows near 72°F. Over 29 years of records, the warmest June 21st was in 2011 (89°F average), while the coldest was 1973 (75°F) — a 14°F range across recorded history. Rain or other precipitation has occurred on about 24% of June 21st dates historically, with the wettest June 21st recording 1.12" of rain.
Planning for June 21st in Round Rock, TX? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 96° | 75° | 86° | — | — |
| 2024 | 88° | 73° | 80° | 0.36" | — |
| 2023 | 101° | 78° | 89° | — | — |
| 2022 | 100° | 72° | 86° | — | — |
| 2021 | 92° | 74° | 83° | — | — |
| 2020 | 91° | 68° | 80° | 0.33" | — |
| 2019 | 95° | 78° | 87° | — | — |
| 2018 | 85° | 72° | 78° | 0.03" | — |
| 2017 | 94° | 70° | 82° | — | — |
| 2016 | 94° | 72° | 83° | — | — |
| 2015 | 80° | 71° | 76° | 1.04" | — |
| 2014 | 88° | 74° | 81° | — | — |
| 2013 | 96° | 74° | 85° | — | — |
| 2012 | 87° | 71° | 79° | 0.1" | — |
| 2011warmest | 100° | 77° | 89° | — | — |
| 2010 | 93° | 73° | 83° | — | — |
| 2009 | 98° | 76° | 87° | — | — |
| 2008 | 92° | 68° | 80° | — | — |
| 1982 | 98° | 70° | 84° | — | — |
| 1981 | 94° | 70° | 82° | — | — |
| 1980 | 96° | 69° | 83° | 1.12" | — |
| 1979 | 96° | 75° | 86° | — | — |
| 1978 | 96° | 68° | 82° | — | — |
| 1977 | 96° | 75° | 86° | — | — |
| 1975 | 90° | 74° | 82° | — | — |
| 1974 | 94° | 70° | 82° | — | — |
| 1973coldest | 85° | 66° | 75° | 0.41" | — |
| 1972 | 96° | 74° | 85° | — | — |
| 1971 | 93° | 71° | 82° | — | — |
29 years of data from GEORGETOWN