Average annual temperature is 14.1 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: -9.9 °C
Number of sunny days: 183 days
Number of rainy days: 181 days
Number of snow days: 1 day
Look at detailed online map of Richland
* Weather data for Richland 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) | 18.1 | 20.0 | 18.8 | 28.8 | 28.3 | 32.2 | 35.7 | 33.6 | 34.8 | 26.9 | 21.0 | 17.1 |
| Average daytime temperature (°C) | 10.1 | 10.4 | 12.1 | 19.9 | 21.2 | 26.5 | 30.8 | 29.3 | 25.9 | 20.6 | 13.1 | 10.4 |
| Average temperature (°C) | 6.1 | 5.7 | 6.6 | 14.0 | 15.5 | 20.5 | 25.5 | 24.1 | 20.9 | 15.5 | 8.0 | 6.5 |
| Average night temperature (°C) | 2.9 | 1.3 | 1.8 | 9.2 | 10.4 | 15.4 | 21.3 | 20.0 | 17.0 | 11.3 | 3.8 | 3.0 |
| Absolute minimum temperature (°C) | -3.6 | -9.9 | -3.8 | 1.0 | 4.5 | 9.5 | 17.9 | 15.6 | 12.0 | 5.3 | -4.5 | -3.5 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.5 | 11.2 | 10.0 | 9.4 |
| 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) | 5.1 | 7.0 | 7.5 | 9.4 | 11.3 | 10.7 | 11.6 | 10.3 | 8.4 | 8.4 | 7.9 | 5.5 |
| Precipitation (mm) | 77 | 45 | 79 | 156 | 63 | 75 | 130 | 54 | 148 | 35 | 51 | 187 |
| Sunny days | 14 | 14 | 16 | 16 | 20 | 11 | 6 | 12 | 13 | 19 | 22 | 20 |
| Rainy days | 17 | 13 | 15 | 14 | 11 | 19 | 25 | 19 | 17 | 12 | 8 | 11 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Richland during the most sunny months:
The largest precipitation sum in Richland is at