Average annual temperature is 13.7 °C
Absolute maximum temperature: 36.2 °C
Absolute minimum temperature: -12.4 °C
Number of sunny days: 190 days
Number of rainy days: 169 days
Number of snow days: 6 days
Look at detailed online map of Hillsboro
* Weather data for Hillsboro 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) | 20.0 | 18.9 | 21.8 | 27.8 | 30.5 | 34.0 | 35.5 | 36.2 | 31.6 | 29.5 | 25.3 | 16.5 |
| Average daytime temperature (°C) | 7.3 | 10.2 | 11.9 | 19.7 | 25.1 | 28.9 | 30.0 | 28.6 | 26.2 | 19.4 | 13.2 | 8.9 |
| Average temperature (°C) | 2.7 | 4.2 | 6.0 | 12.9 | 18.9 | 23.0 | 24.8 | 23.7 | 20.8 | 14.5 | 7.6 | 4.8 |
| Average night temperature (°C) | -0.4 | -0.3 | 1.7 | 7.5 | 13.2 | 17.4 | 20.3 | 19.6 | 16.3 | 10.5 | 3.2 | 1.9 |
| Absolute minimum temperature (°C) | -12.4 | -12.1 | -8.1 | -0.1 | 5.2 | 12.0 | 16.0 | 12.6 | 10.8 | -2.2 | -7.4 | -6.8 |
| 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 | 10.7 | 12.0 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 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) | 4.9 | 7.6 | 7.0 | 9.9 | 11.2 | 12.9 | 12.4 | 10.1 | 10.2 | 7.6 | 7.7 | 5.1 |
| Precipitation (mm) | 66 | 75 | 161 | 50 | 90 | 65 | 58 | 113 | 23 | 90 | 16 | 83 |
| Sunny days | 15 | 16 | 12 | 15 | 18 | 20 | 11 | 12 | 16 | 18 | 21 | 16 |
| Rainy days | 12 | 11 | 18 | 15 | 13 | 10 | 20 | 19 | 14 | 13 | 9 | 15 |
| Snow days | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Hillsboro during the most sunny months:
The largest precipitation sum in Hillsboro is at