Average annual temperature is 18.8 °C
Absolute maximum temperature: 43.1 °C
Absolute minimum temperature: -6.7 °C
Number of sunny days: 281 days
Number of rainy days: 82 days
Number of snow days: 2 days
Look at detailed online map of Roswell
* Weather data for Roswell 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) | 23.4 | 23.1 | 28.4 | 33.7 | 35.1 | 42.1 | 43.1 | 41.7 | 39.4 | 31.9 | 30.3 | 24.0 |
| Average daytime temperature (°C) | 15.2 | 16.3 | 22.2 | 26.5 | 30.8 | 36.6 | 38.7 | 36.8 | 33.8 | 26.2 | 19.2 | 15.0 |
| Average temperature (°C) | 7.5 | 8.0 | 14.0 | 17.8 | 23.1 | 29.1 | 31.9 | 30.1 | 26.4 | 18.4 | 11.3 | 7.7 |
| Average night temperature (°C) | 1.5 | 1.4 | 6.6 | 9.6 | 15.4 | 20.8 | 24.4 | 23.2 | 19.3 | 11.9 | 5.4 | 1.9 |
| Absolute minimum temperature (°C) | -4.6 | -6.7 | -0.7 | 1.7 | 11.2 | 15.0 | 21.3 | 18.7 | 15.1 | -1.0 | -2.8 | -3.2 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.3 | 14.1 | 13.4 | 12.4 | 11.3 | 10.4 | 10.0 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 8.2 | 8.8 | 10.3 | 11.7 | 11.6 | 12.7 | 13.0 | 11.7 | 10.9 | 9.8 | 8.3 | 8.2 |
| Precipitation (mm) | 13 | 5 | 8 | 2 | 16 | 7 | 3 | 13 | 12 | 23 | 4 | 26 |
| Sunny days | 27 | 21 | 23 | 26 | 18 | 22 | 22 | 25 | 21 | 25 | 25 | 26 |
| Rainy days | 4 | 5 | 8 | 4 | 13 | 8 | 9 | 6 | 9 | 6 | 5 | 5 |
| Snow days | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Roswell is at