Average annual temperature is 21.2 °C
Absolute maximum temperature: 41.6 °C
Absolute minimum temperature: -2.6 °C
Number of sunny days: 176 days
Number of rainy days: 189 days
Look at detailed online map of Round Rock
* Weather data for Round Rock United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 26.0 | 28.9 | 32.9 | 33.1 | 32.3 | 38.3 | 40.0 | 41.6 | 40.7 | 33.6 | 27.4 | 24.5 |
| Average daytime temperature (°C) | 18.0 | 19.2 | 24.1 | 24.5 | 27.9 | 34.4 | 37.3 | 39.5 | 34.8 | 27.0 | 19.4 | 18.4 |
| Average temperature (°C) | 12.7 | 12.3 | 17.5 | 18.5 | 22.7 | 28.3 | 31.2 | 32.8 | 29.2 | 21.5 | 14.5 | 12.5 |
| Average night temperature (°C) | 8.5 | 8.0 | 13.0 | 14.1 | 18.7 | 22.9 | 25.2 | 26.4 | 24.1 | 17.2 | 10.9 | 8.0 |
| Absolute minimum temperature (°C) | -2.6 | -2.0 | 3.6 | 9.0 | 13.4 | 19.0 | 23.1 | 24.3 | 20.8 | 4.4 | 3.0 | 1.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.4 | 11.1 | 12.0 | 12.9 | 13.7 | 14.1 | 13.9 | 13.2 | 12.3 | 11.4 | 10.6 | 10.2 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 7.0 | 7.7 | 7.1 | 7.1 | 8.2 | 10.8 | 12.3 | 12.2 | 10.4 | 7.9 | 6.1 | 7.2 |
| Precipitation (mm) | 91 | 83 | 66 | 172 | 156 | 62 | 15 | 2 | 45 | 117 | 74 | 31 |
| Sunny days | 16 | 11 | 9 | 8 | 4 | 11 | 23 | 24 | 17 | 14 | 17 | 22 |
| Rainy days | 15 | 17 | 22 | 22 | 27 | 19 | 8 | 7 | 13 | 17 | 13 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Round Rock during the most sunny months:
The largest precipitation sum in Round Rock is at