Round Rock Weather in March
Average highs run from 52°F on March 1 to 57°F on March 31, and lows from 28°F to 32°F.
March day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
March at a glance
- Average high
- 55°F
- Average low
- 30°F
- Record high
- 84°FMar 19, 2026
- Record low
- -8°FMar 3, 2002
- Chance of a freeze
- 100%
- Daylight
- 11 h 25 min to 12 h 34 min
- Cloud cover
- 48%
- Humidity
- 49%
- Dew point
- 22°F
- Wind
- 9.6 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Mar 1 | 52°F | 28°F | 69°F 2025 | 6°F 2021 | |
| Mar 2 | 52°F | 28°F | 71°F 2009 | -1°F 2002 | |
| Mar 3 | 53°F | 28°F | 70°F 2016 | -8°F 2002 | |
| Mar 4 | 53°F | 28°F | 69°F 2016 | -1°F 2002 | |
| Mar 5 | 53°F | 28°F | 68°F 2016 | 2°F 2002 | |
| Mar 6 | 54°F | 29°F | 65°F 2014 | 1°F 2018 | |
| Mar 7 | 54°F | 29°F | 66°F 2021 | 6°F 2018 | |
| Mar 8 | 54°F | 29°F | 68°F 2021 | 10°F 2009 | |
| Mar 9 | 55°F | 29°F | 69°F 2017 | 2°F 2002 | |
| Mar 10 | 55°F | 29°F | 71°F 2017 | 12°F 2002 | |
| Mar 11 | 55°F | 29°F | 70°F 2017 | 10°F 2022 | |
| Mar 12 | 55°F | 30°F | 69°F 2017 | 12°F 2006 | |
| Mar 13 | 55°F | 30°F | 70°F 2007 | -7°F 2006 | |
| Mar 14 | 56°F | 30°F | 73°F 2007 | -2°F 2006 | |
| Mar 15 | 56°F | 30°F | 74°F 2017 | 3°F 2005 | |
| Mar 16 | 56°F | 30°F | 72°F 2007 | 13°F 2002 | |
| Mar 17 | 56°F | 30°F | 76°F 2007 | 16°F 2000 | |
| Mar 18 | 56°F | 30°F | 79°F 2026 | 16°F 2000 | |
| Mar 19 | 56°F | 30°F | 84°F 2026 | 9°F 2000 | |
| Mar 20 | 56°F | 31°F | 84°F 2026 | 5°F 2025 | |
| Mar 21 | 56°F | 31°F | 84°F 2026 | 12°F 2002 | |
| Mar 22 | 57°F | 31°F | 75°F 2026 | 15°F 2012 | |
| Mar 23 | 57°F | 31°F | 77°F 2026 | 13°F 2008 | |
| Mar 24 | 57°F | 31°F | 80°F 2026 | 7°F 2013 | |
| Mar 25 | 57°F | 31°F | 84°F 2026 | 9°F 2013 | |
| Mar 26 | 57°F | 31°F | 77°F 2022 | 16°F 2002 | |
| Mar 27 | 57°F | 31°F | 78°F 2026 | 12°F 2016 | |
| Mar 28 | 57°F | 31°F | 76°F 2015 | 15°F 2003 | |
| Mar 29 | 57°F | 31°F | 76°F 2015 | 12°F 2003 | |
| Mar 30 | 57°F | 32°F | 75°F 2015 | 14°F 2003 | |
| Mar 31 | 57°F | 32°F | 74°F 2012 | 10°F 2021 |
Chance of rain
Sunrise and sunset
Times for 2026, local time (MDT).
- March 1
- sunrise 6:48 AM, sunset 6:13 PM
- March 31
- sunrise 7:05 AM, sunset 7:39 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00025129 (Lukachukai), public domain. Records: NOAA GHCN-Daily, station USW00003029, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.