Historical Weather in Round Rock, TX
See 55+ years of weather history for any date in Round Rock going back to 1970.
Part of Texas weather history · Texas temperature records
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Today in Round Rock Weather HistorySee records, averages, and 55+ years of data for today's date
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Monthly Climate Averages
Historical temperature and precipitation averages for Round Rock, TX, based on 55+ years of weather data.
Warmest MonthAugustAvg High: 97°F / Low: 72°F
Coldest MonthJanuaryAvg High: 60°F / Low: 37°F
Jan
60°/ 37°
💧 6.3"
❄️ 57.4"
Feb
65°/ 41°
💧 6.4"
❄️ 1.9"
Mar
74°/ 50°
💧 6.7"
Apr
80°/ 57°
💧 9.9"
May
85°/ 64°
💧 13.5"
Jun
93°/ 71°
💧 10.2"
Jul
96°/ 73°
💧 11.0"
Aug
97°/ 72°
💧 10.0"
Sep
91°/ 68°
💧 12.1"
Oct
82°/ 57°
💧 14.0"
Nov
70°/ 47°
💧 7.8"
Dec
64°/ 42°
💧 6.2"
❄️ 0.3"
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
Round Rock, TX Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Avg high Avg low
Round Rock, TX Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Rain (in) Snow (in)
Round Rock, TX Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
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Best Time to Visit Round Rock, TX
Round Rock, TX has no months that meet our "pleasant" threshold — every season has tradeoffs.
Jan
Feb
Mar
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Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal
Round Rock Temperature Records
- Record High: The hottest temperature ever recorded in Round Rock, TX is 112°F, set on September 5, 2000.
- Record Low: The coldest temperature ever recorded in Round Rock, TX is -2°F, set on December 23, 1989.
- Data Coverage: Based on 19 years of data from NOAA weather station: AUSTIN GREAT HILLS.
All-Time Record High
112°F
September 5, 2000
All-Time Record Low
-2°F
December 23, 1989
Monthly Temperature Records in Round Rock
| Month | Record High | Record Low |
|---|---|---|
| January | 90°F(1971) | 6°F(1982) |
| February | 99°F(1996) | 4°F(2021) |
| March | 98°F(1971) | 17°F(2014) |
| April | 99°F(1996) | 31°F(2007) |
| May | 102°F(2011) | 37°F(2016) |
| June | 109°F(2012) | 46°F(1995) |
| July | 110°F(2018) | 56°F(1995) |
| August | 112°F(2011) | 55°F(1995) |
| September | 112°F(2000) | 34°F(1983) |
| October | 101°F(2024) | 28°F(1993) |
| November | 93°F(1988) | 20°F(1976) |
| December | 89°F(2024) | -2°F(1989) |
Round Rock Snow RecordsSee the top 10 snowiest days ever recorded
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Holiday Weather in Round Rock
Weather Analysis & Trends
RecordsHottest Temperatures Ever Recorded in Every US StateAll 50 state record highs ranked, including Texas.Severe WeatherTornado Season 2026: Forecasts & What to ExpectAn EF5 already, and the peak still ahead.Climate ForecastEl Niño 2026: What Every US Region Should Expect85% likely by late 2026. Region-by-region impact analysis.