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Round Rock, TX Weather on May 27
May 27th in Round Rock, TX typically brings warm spring weather, with average highs around 89°F and lows near 67°F. Over 30 years of records, the warmest May 27th was in 2008 (84°F average), while the coldest was 2014 (66°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 23% of May 27th dates historically, with the wettest May 27th recording 6.07" of rain.
What to Expect on May 27
Planning for May 27th in Round Rock, TX? Stay hydrated and seek shade during peak afternoon hours.
May 27 Weather Records for Round Rock
- •The all-time record high for May 27th in Round Rock, TX is 97°F, set in 2018.
- •The coldest May 27th on record dropped to 59°F in 2022.
- •Temperatures have reached 90°F or higher on May 27th in 16 of the last 30 years.
Frequently Asked Questions
What was the warmest May 27 ever in Round Rock?
The warmest May 27 in Round Rock, TX reached 97°F in 2018. That is 8°F above the long-term average high of 89°F.
What was the coldest May 27 ever in Round Rock?
The coldest May 27 in Round Rock, TX dropped to 59°F in 2022. That is 8°F below the long-term average low of 67°F.
What is the average temperature on May 27 in Round Rock?
On May 27, Round Rock averages a high of 89°F and a low of 67°F based on 30 years of NOAA weather observations from GEORGETOWN.
How many years of weather data are available for May 27 in Round Rock?
We have 30 years of weather records for May 27 in Round Rock, TX, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
May 27 Weather History in Round Rock
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 88°F | 64°F | 2.59" | -- |
| 2024 | 93°F | 76°F | 0" | -- |
| 2023 | 86°F | 63°F | 0" | -- |
| 2022 | 94°F | 59°F | 0" | -- |
| 2021 | 89°F | 69°F | 0" | -- |
| 2020 | 83°F | 59°F | 0.08" | -- |
| 2019 | 90°F | 72°F | 0" | -- |
| 2018 | 97°F | 71°F | 0" | -- |
| 2017 | 88°F | 74°F | 0" | -- |
| 2016 | 88°F | 65°F | 1.19" | -- |
| 2015 | 85°F | 64°F | 0.03" | -- |
| 2014 | 72°F | 61°F | 6.07" | -- |
| 2013 | 84°F | 69°F | 0" | -- |
| 2012 | 93°F | 73°F | 0" | -- |
| 2011 | 91°F | 64°F | 0" | -- |
| 2010 | 90°F | 66°F | 0" | -- |
| 2009 | 92°F | 66°F | 0" | -- |
| 2008 | 94°F | 75°F | 0.03" | -- |
| 1982 | 80°F | 73°F | 0" | -- |
| 1981 | 93°F | 68°F | 0" | -- |
| 1980 | 93°F | 73°F | 0" | -- |
| 1979 | 86°F | 67°F | 0" | -- |
| 1978 | 94°F | 70°F | 0" | -- |
| 1977 | 90°F | 64°F | 0" | -- |
| 1976 | 83°F | 61°F | 0.15" | -- |
| 1975 | 87°F | 67°F | 0" | -- |
| 1974 | 88°F | 60°F | 0" | -- |
| 1973 | 92°F | 68°F | 0" | -- |
| 1972 | 91°F | 63°F | 0" | -- |
| 1971 | 93°F | 71°F | 0" | -- |
Based on 30 years of data from NOAA station: GEORGETOWN
Monthly Climate Averages
Historical temperature and precipitation averages for Round Rock, TX, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.