Joshua Tree National Park / Public domain
Round Rock, TX Weather on April 20
April 20th in Round Rock, TX typically brings warm spring weather, with average highs around 81°F and lows near 57°F. Over 55 years of records, the warmest April 20th was in 1984 (81°F average), while the coldest was 2013 (53°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 36% of April 20th dates historically, with the wettest April 20th recording 4.6" of rain. The last decade has been 3.3°F cooler on this date compared to 20-30 years ago.
What to Expect on April 20
Planning for April 20th in Round Rock, TX? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
April 20 Weather Records for Round Rock
- •The all-time record high for April 20th in Round Rock, TX is 99°F, set in 1996.
- •The coldest April 20th on record dropped to 37°F in 2013.
- •Temperatures have reached 90°F or higher on April 20th in 7 of the last 55 years.
Frequently Asked Questions
What was the warmest April 20 ever in Round Rock?
The warmest April 20 in Round Rock, TX reached 99°F in 1996. That is 18°F above the long-term average high of 81°F.
What was the coldest April 20 ever in Round Rock?
The coldest April 20 in Round Rock, TX dropped to 37°F in 2013. That is 20°F below the long-term average low of 57°F.
What is the average temperature on April 20 in Round Rock?
On April 20, Round Rock averages a high of 81°F and a low of 57°F based on 55 years of NOAA weather observations from GEORGETOWN.
How many years of weather data are available for April 20 in Round Rock?
We have 55 years of weather records for April 20 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.
April 20 Weather History in Round Rock
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 81°F | 69°F | 0.23" | -- |
| 2024 | 74°F | 61°F | 0" | -- |
| 2023 | 79°F | 68°F | 0" | -- |
| 2022 | 68°F | 54°F | 0.18" | -- |
| 2021 | 75°F | 48°F | 0" | -- |
| 2020 | 90°F | 60°F | 0.03" | -- |
| 2019 | 75°F | 45°F | 0" | -- |
| 2018 | 76°F | 55°F | 0" | -- |
| 2017 | 83°F | 66°F | 0" | -- |
| 2016 | 76°F | 59°F | 0.86" | -- |
| 2015 | 85°F | 51°F | 0" | -- |
| 2014 | 77°F | 53°F | 0" | -- |
| 2013 | 68°F | 37°F | 0" | -- |
| 2012 | 85°F | 60°F | 0" | -- |
| 2011 | 91°F | 72°F | 0" | -- |
| 2010 | 62°F | 54°F | 0" | -- |
| 2009 | 78°F | 51°F | 0" | -- |
| 2008 | 84°F | 57°F | 0" | -- |
| 2007 | 78°F | 51°F | 0" | -- |
| 2006 | 89°F | 61°F | 0.13" | -- |
| 2005 | 84°F | 51°F | 0" | -- |
| 2004 | 79°F | 64°F | 0" | -- |
| 2003 | 82°F | 58°F | 0" | -- |
| 2002 | 86°F | 69°F | 0" | -- |
| 2001 | 75°F | 57°F | 0" | -- |
| 2000 | 84°F | 66°F | 0" | -- |
| 1999 | 88°F | 62°F | 0" | -- |
| 1998 | 78°F | 49°F | 0" | -- |
| 1997 | 78°F | 55°F | 0" | -- |
| 1996 | 99°F | 60°F | 0" | -- |
| 1995 | 84°F | 56°F | 4.6" | -- |
| 1994 | 79°F | 63°F | 0.1" | -- |
| 1993 | 86°F | 62°F | 0.03" | -- |
| 1992 | 76°F | 38°F | 0.18" | -- |
| 1991 | 78°F | 52°F | 0" | -- |
| 1990 | 78°F | 63°F | 0.03" | -- |
| 1989 | 77°F | 56°F | 0.1" | -- |
| 1988 | 76°F | 44°F | 0" | -- |
| 1987 | 90°F | 63°F | 0" | -- |
| 1986 | 86°F | 51°F | 0.48" | -- |
| 1985 | 76°F | 67°F | 0.15" | -- |
| 1984 | 96°F | 67°F | 0" | -- |
| 1983 | 83°F | 53°F | 0.15" | -- |
| 1982 | 65°F | 52°F | 3.23" | -- |
| 1981 | 92°F | 66°F | 0" | -- |
| 1980 | 85°F | 50°F | 0" | -- |
| 1979 | 84°F | 65°F | 1.22" | -- |
| 1978 | 78°F | 44°F | 0" | -- |
| 1977 | 84°F | 61°F | 1.93" | -- |
| 1976 | 80°F | 56°F | 2.08" | -- |
| 1975 | 79°F | 51°F | 0" | -- |
| 1974 | 81°F | 66°F | 0.03" | -- |
| 1973 | 85°F | 70°F | 0" | -- |
| 1972 | 90°F | 71°F | 0" | -- |
| 1971 | 81°F | 52°F | 0.05" | -- |
Based on 55 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.