Average annual temperature is 8.3 °C
Absolute maximum temperature: 33.1 °C
Absolute minimum temperature: -18.9 °C
Number of sunny days: 148 days
Number of rainy days: 166 days
Number of snow days: 51 days
Look at detailed online map of O'Neil
* Weather data for O'Neil 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) | 4.9 | 9.2 | 9.8 | 26.8 | 32.5 | 32.3 | 33.1 | 29.7 | 31.8 | 28.2 | 14.5 | 10.6 |
| Average daytime temperature (°C) | -0.3 | 0.3 | 3.3 | 13.1 | 20.5 | 25.1 | 26.2 | 24.3 | 22.2 | 14.0 | 5.9 | 4.1 |
| Average temperature (°C) | -2.8 | -4.2 | -1.7 | 7.0 | 13.3 | 18.7 | 20.1 | 18.5 | 16.6 | 10.1 | 2.0 | 1.2 |
| Average night temperature (°C) | -5.0 | -8.2 | -6.0 | 2.0 | 7.0 | 12.7 | 14.8 | 13.9 | 12.3 | 7.3 | -1.0 | -1.1 |
| Absolute minimum temperature (°C) | -16.5 | -18.9 | -14.0 | -6.3 | -1.0 | 6.4 | 11.2 | 8.2 | 4.4 | -3.2 | -8.0 | -5.1 |
| 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) | 9.3 | 10.4 | 11.9 | 13.5 | 14.8 | 15.5 | 15.2 | 14.0 | 12.5 | 11.0 | 9.6 | 8.9 |
| 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) | 2.2 | 5.0 | 7.3 | 8.2 | 10.9 | 11.8 | 12.9 | 10.6 | 9.3 | 5.1 | 4.7 | 3.0 |
| Precipitation (mm) | 56 | 77 | 66 | 80 | 46 | 36 | 78 | 92 | 41 | 99 | 66 | 50 |
| Sunny days | 9 | 10 | 8 | 9 | 22 | 19 | 10 | 10 | 17 | 9 | 12 | 13 |
| Rainy days | 9 | 4 | 10 | 19 | 9 | 11 | 21 | 21 | 13 | 21 | 13 | 15 |
| Snow days | 13 | 14 | 13 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 3 |
The best time to visit O'Neil during the most sunny months:
Months with the longest average daylight duration in O'Neil:
The largest precipitation sum in O'Neil is at