Average annual temperature is 12.6 °C
Absolute maximum temperature: 35.9 °C
Absolute minimum temperature: -17.1 °C
Number of sunny days: 210 days
Number of rainy days: 143 days
Number of snow days: 12 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) | 15.0 | 13.7 | 22.6 | 27.8 | 32.6 | 33.8 | 35.0 | 35.9 | 33.2 | 30.4 | 19.7 | 15.0 |
| Average daytime temperature (°C) | 3.9 | 7.2 | 9.2 | 18.3 | 26.0 | 29.9 | 29.0 | 28.2 | 26.7 | 18.8 | 11.4 | 7.5 |
| Average temperature (°C) | -0.6 | 1.1 | 3.7 | 11.2 | 19.3 | 23.9 | 23.7 | 23.4 | 20.8 | 14.0 | 6.1 | 3.6 |
| Average night temperature (°C) | -3.6 | -3.6 | -0.2 | 5.6 | 12.8 | 17.9 | 18.9 | 19.2 | 15.9 | 9.9 | 1.8 | 0.8 |
| Absolute minimum temperature (°C) | -14.1 | -17.1 | -11.9 | -2.0 | 4.1 | 9.3 | 14.1 | 12.1 | 11.6 | -2.9 | -10.0 | -6.9 |
| 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 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.6 | 10.6 | 11.9 | 13.3 | 14.5 | 15.0 | 14.8 | 13.8 | 12.5 | 11.1 | 9.9 | 9.3 |
| 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) | 4.8 | 7.5 | 6.8 | 9.8 | 12.0 | 12.4 | 12.2 | 10.6 | 10.1 | 7.3 | 7.5 | 4.7 |
| Precipitation (mm) | 58 | 91 | 84 | 42 | 47 | 53 | 119 | 143 | 40 | 78 | 18 | 99 |
| Sunny days | 16 | 17 | 14 | 17 | 21 | 19 | 13 | 15 | 20 | 17 | 25 | 16 |
| Rainy days | 6 | 10 | 16 | 13 | 10 | 11 | 18 | 16 | 10 | 14 | 4 | 15 |
| Snow days | 9 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
The best time to visit Hillsboro during the most sunny months:
The largest precipitation sum in Hillsboro is at