Average annual temperature is 8.0 °C
Absolute maximum temperature: 33.8 °C
Absolute minimum temperature: -27.7 °C
Number of sunny days: 176 days
Number of rainy days: 152 days
Number of snow days: 37 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) | 3.3 | 5.9 | 6.4 | 26.4 | 30.8 | 30.8 | 31.1 | 33.2 | 33.8 | 28.9 | 16.6 | 12.0 |
| Average daytime temperature (°C) | -3.6 | -1.3 | 2.0 | 10.4 | 22.0 | 27.1 | 26.2 | 26.5 | 23.4 | 13.9 | 5.9 | 3.5 |
| Average temperature (°C) | -7.0 | -6.8 | -2.7 | 4.7 | 15.5 | 20.9 | 20.7 | 20.8 | 18.2 | 9.6 | 1.5 | -0.1 |
| Average night temperature (°C) | -10.0 | -11.3 | -6.9 | 0.6 | 10.0 | 15.7 | 15.8 | 16.3 | 14.2 | 6.1 | -1.9 | -2.7 |
| Absolute minimum temperature (°C) | -24.4 | -27.7 | -14.8 | -9.0 | -0.3 | 8.4 | 11.2 | 10.6 | 5.6 | -6.3 | -14.4 | -11.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.2 | 10.4 | 11.9 | 13.5 | 14.9 | 15.6 | 15.3 | 14.1 | 12.5 | 11.0 | 9.5 | 8.8 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 |
| Sunshine mean duration (h) | 3.6 | 7.0 | 6.9 | 7.2 | 10.9 | 12.4 | 12.0 | 11.3 | 8.4 | 6.8 | 5.8 | 4.1 |
| Precipitation (mm) | 53 | 67 | 64 | 147 | 54 | 95 | 88 | 61 | 144 | 94 | 12 | 60 |
| Sunny days | 18 | 17 | 14 | 12 | 15 | 13 | 7 | 19 | 10 | 12 | 22 | 17 |
| Rainy days | 4 | 5 | 6 | 16 | 16 | 17 | 24 | 12 | 20 | 16 | 6 | 10 |
| Snow days | 9 | 6 | 11 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 2 | 4 |
The best time to visit Richardson during the most sunny months:
Months with the longest average daylight duration in Richardson:
The largest precipitation sum in Richardson is at