Average annual temperature is 15.1 °C
Absolute maximum temperature: 38.0 °C
Absolute minimum temperature: -8.7 °C
Number of sunny days: 203 days
Number of rainy days: 158 days
Number of snow days: 4 days
Look at detailed online map of Round Spring
* Weather data for Round Spring 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) | 19.7 | 20.7 | 24.7 | 28.5 | 31.5 | 38.0 | 36.7 | 37.1 | 32.4 | 29.8 | 26.7 | 17.1 |
| Average daytime temperature (°C) | 9.8 | 13.3 | 14.8 | 21.1 | 26.7 | 31.4 | 32.1 | 30.5 | 28.0 | 21.7 | 15.6 | 11.6 |
| Average temperature (°C) | 4.7 | 6.6 | 8.2 | 14.0 | 19.8 | 24.1 | 25.8 | 24.9 | 21.3 | 15.7 | 9.3 | 6.5 |
| Average night temperature (°C) | 1.2 | 1.9 | 3.3 | 8.1 | 14.0 | 17.7 | 20.9 | 20.6 | 16.0 | 11.2 | 4.4 | 2.8 |
| Absolute minimum temperature (°C) | -8.7 | -7.7 | -6.5 | 0.7 | 6.2 | 10.9 | 15.3 | 14.3 | 10.2 | -2.8 | -4.6 | -4.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.4 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 5.5 | 7.4 | 7.6 | 10.4 | 10.8 | 12.8 | 11.8 | 10.1 | 10.7 | 7.6 | 7.8 | 6.5 |
| Precipitation (mm) | 97 | 97 | 231 | 70 | 55 | 47 | 68 | 195 | 30 | 58 | 12 | 52 |
| Sunny days | 15 | 19 | 16 | 20 | 15 | 16 | 10 | 15 | 18 | 20 | 22 | 17 |
| Rainy days | 13 | 8 | 15 | 10 | 16 | 14 | 21 | 16 | 12 | 11 | 8 | 14 |
| Snow days | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Round Spring during the most sunny months:
The largest precipitation sum in Round Spring is at