Average annual temperature is 17.3 °C
Absolute maximum temperature: 36.2 °C
Absolute minimum temperature: -3.9 °C
Number of sunny days: 164 days
Number of rainy days: 201 days
Look at detailed online map of Richardson
* Weather data for Richardson 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) | 20.5 | 25.1 | 25.8 | 28.4 | 30.8 | 33.5 | 35.7 | 36.2 | 33.8 | 28.2 | 25.3 | 21.1 |
| Average daytime temperature (°C) | 14.5 | 17.6 | 18.9 | 22.2 | 25.2 | 29.3 | 33.0 | 32.8 | 28.5 | 22.9 | 17.3 | 13.8 |
| Average temperature (°C) | 9.3 | 12.3 | 12.8 | 16.3 | 19.6 | 23.3 | 26.7 | 26.5 | 22.5 | 17.3 | 11.6 | 8.5 |
| Average night temperature (°C) | 5.3 | 8.2 | 7.7 | 11.2 | 15.1 | 18.3 | 21.5 | 21.7 | 17.5 | 12.3 | 7.2 | 4.1 |
| Absolute minimum temperature (°C) | -3.7 | -2.7 | -3.9 | 5.0 | 6.1 | 15.1 | 18.9 | 17.3 | 12.9 | 6.0 | -2.2 | -3.1 |
| 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 | 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) | 5.7 | 6.0 | 8.5 | 9.4 | 9.9 | 10.7 | 11.5 | 10.8 | 10.1 | 8.7 | 6.6 | 6.4 |
| Precipitation (mm) | 129 | 139 | 180 | 120 | 103 | 108 | 129 | 157 | 68 | 55 | 57 | 130 |
| Sunny days | 13 | 8 | 17 | 13 | 11 | 8 | 6 | 9 | 19 | 20 | 20 | 20 |
| Rainy days | 18 | 20 | 14 | 17 | 20 | 22 | 25 | 22 | 11 | 11 | 10 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Richardson during the most sunny months:
The largest precipitation sum in Richardson is at