Average annual temperature is 12.2 °C
Absolute maximum temperature: 34.3 °C
Absolute minimum temperature: -11.6 °C
Number of sunny days: 165 days
Number of rainy days: 191 days
Number of snow days: 9 days
Look at detailed online map of Roundtop
* Weather data for Roundtop 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) | 15.4 | 19.8 | 18.9 | 29.3 | 30.9 | 33.8 | 34.3 | 32.3 | 32.9 | 27.3 | 20.0 | 14.6 |
| Average daytime temperature (°C) | 6.9 | 9.4 | 10.0 | 19.0 | 22.0 | 25.9 | 29.9 | 27.9 | 23.9 | 18.5 | 10.5 | 7.6 |
| Average temperature (°C) | 3.3 | 3.1 | 4.2 | 12.2 | 15.3 | 19.7 | 24.0 | 22.2 | 18.7 | 13.5 | 5.4 | 3.9 |
| Average night temperature (°C) | 0.5 | -1.3 | -0.2 | 6.5 | 8.8 | 14.2 | 18.7 | 17.4 | 14.4 | 9.2 | 1.3 | 1.1 |
| Absolute minimum temperature (°C) | -3.8 | -11.6 | -6.7 | -0.3 | 2.2 | 8.7 | 14.9 | 14.1 | 8.4 | 1.2 | -6.1 | -4.1 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.7 | 11.9 | 13.3 | 14.4 | 15.0 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| 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) | 4.8 | 6.9 | 7.1 | 9.2 | 11.2 | 10.8 | 12.0 | 10.8 | 8.9 | 7.4 | 7.5 | 4.0 |
| Precipitation (mm) | 93 | 42 | 85 | 102 | 17 | 117 | 102 | 150 | 99 | 63 | 59 | 117 |
| Sunny days | 11 | 13 | 13 | 14 | 22 | 13 | 4 | 11 | 17 | 16 | 19 | 12 |
| Rainy days | 19 | 11 | 18 | 16 | 9 | 17 | 27 | 20 | 13 | 15 | 9 | 17 |
| Snow days | 1 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 |
The best time to visit Roundtop during the most sunny months:
The largest precipitation sum in Roundtop is at