Average annual temperature is 10.1 °C
Absolute maximum temperature: 37.5 °C
Absolute minimum temperature: -10.5 °C
Number of sunny days: 229 days
Number of rainy days: 125 days
Number of snow days: 11 days
Look at detailed online map of Happy Valley
* Weather data for Happy Valley 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) | 13.3 | 14.3 | 10.2 | 25.4 | 25.4 | 30.7 | 37.5 | 33.2 | 27.0 | 27.7 | 20.7 | 16.7 |
| Average daytime temperature (°C) | 6.2 | 7.5 | 4.9 | 14.4 | 17.7 | 21.7 | 30.4 | 27.7 | 22.0 | 19.6 | 13.3 | 11.3 |
| Average temperature (°C) | 1.4 | 1.4 | 0.7 | 7.2 | 11.9 | 15.1 | 22.7 | 20.5 | 15.1 | 12.2 | 6.8 | 5.2 |
| Average night temperature (°C) | -2.3 | -2.8 | -2.4 | 0.8 | 6.3 | 8.4 | 14.3 | 13.3 | 9.2 | 6.5 | 1.9 | 1.0 |
| Absolute minimum temperature (°C) | -10.5 | -7.7 | -9.8 | -9.5 | -1.3 | 2.6 | 7.8 | 9.6 | 4.2 | -2.3 | -4.2 | -4.3 |
| 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) | 9.8 | 10.8 | 12.0 | 13.2 | 14.3 | 14.8 | 14.6 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 |
| 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) | 5.2 | 6.6 | 6.5 | 11.2 | 11.4 | 12.6 | 13.4 | 12.0 | 10.5 | 9.8 | 7.9 | 6.4 |
| Precipitation (mm) | 373 | 178 | 362 | 29 | 64 | 19 | 0 | 28 | 76 | 13 | 114 | 92 |
| Sunny days | 11 | 14 | 9 | 24 | 12 | 18 | 31 | 25 | 22 | 26 | 19 | 18 |
| Rainy days | 18 | 10 | 18 | 5 | 19 | 12 | 0 | 6 | 8 | 5 | 11 | 13 |
| Snow days | 2 | 4 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Happy Valley during the most sunny months:
The largest precipitation sum in Happy Valley is at