Weather on May 20
Round Rock, TX
55 Years of Data
Avg High
86°F
Avg Low
66°F
Warmest
2019
82°F avg
Coldest
2016
65°F avg
About This Date
May 20th in Round Rock, TX typically brings warm spring weather, with average highs around 86°F and lows near 66°F. Over 30 years of records, the warmest May 20th was in 2019 (82°F average), while the coldest was 2016 (65°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 27% of May 20th dates historically, with the wettest May 20th recording 5.23" of rain.
Planning for May 20th in Round Rock, TX? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 75° | 80° | — | — |
| 2024 | 91° | 69° | 80° | — | — |
| 2023 | 90° | 66° | 78° | 0.15" | — |
| 2022 | 95° | 70° | 82° | — | — |
| 2021 | 70° | 61° | 65° | — | — |
| 2020 | 95° | 66° | 81° | — | — |
| 2019warmest | 91° | 74° | 82° | — | — |
| 2018 | 90° | 72° | 81° | — | — |
| 2017 | 90° | 64° | 77° | 3.96" | — |
| 2016coldest | 72° | 59° | 65° | 5.23" | — |
| 2015 | 85° | 72° | 78° | 0.03" | — |
| 2014 | 85° | 65° | 75° | — | — |
| 2013 | 91° | 71° | 81° | — | — |
| 2012 | 88° | 64° | 76° | — | — |
| 2011 | 77° | 73° | 75° | 0.1" | — |
| 2010 | 88° | 68° | 78° | — | — |
| 2009 | 82° | 52° | 67° | — | — |
| 2008 | 97° | 63° | 80° | — | — |
| 1982 | 89° | 70° | 79° | — | — |
| 1981 | 82° | 52° | 67° | — | — |
| 1980 | 89° | 58° | 73° | — | — |
| 1979 | 85° | 70° | 77° | — | — |
| 1978 | 89° | 69° | 79° | — | — |
| 1977 | 82° | 70° | 76° | 0.56" | — |
| 1976 | 75° | 63° | 69° | — | — |
| 1975 | 89° | 64° | 77° | 1.55" | — |
| 1974 | 88° | 70° | 79° | — | — |
| 1973 | 93° | 63° | 78° | — | — |
| 1972 | 87° | 59° | 73° | — | — |
| 1971 | 83° | 61° | 72° | 0.13" | — |
30 years of data from GEORGETOWN