Average annual temperature is 19.8 °C
Absolute maximum temperature: 43.9 °C
Absolute minimum temperature: -9.3 °C
Number of sunny days: 247 days
Number of rainy days: 117 days
Number of snow days: 1 day
Look at detailed online map of O'Brien
* Weather data for O'Brien 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) | 27.4 | 30.2 | 30.5 | 34.8 | 34.9 | 42.3 | 42.6 | 43.9 | 42.9 | 34.1 | 31.0 | 23.7 |
| Average daytime temperature (°C) | 16.5 | 17.4 | 21.3 | 25.9 | 29.4 | 34.7 | 38.0 | 40.2 | 34.8 | 26.2 | 19.6 | 16.0 |
| Average temperature (°C) | 9.4 | 9.0 | 13.8 | 18.1 | 22.9 | 27.5 | 31.8 | 33.7 | 28.5 | 19.6 | 12.9 | 9.8 |
| Average night temperature (°C) | 4.1 | 3.4 | 8.2 | 12.0 | 17.6 | 21.7 | 26.0 | 27.3 | 23.1 | 14.3 | 8.0 | 4.9 |
| Absolute minimum temperature (°C) | -9.3 | -5.6 | -1.3 | 5.7 | 11.4 | 16.3 | 21.9 | 22.6 | 17.5 | -1.6 | -1.6 | -1.6 |
| 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 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.2 | 11.0 | 12.0 | 13.0 | 13.9 | 14.3 | 14.1 | 13.4 | 12.4 | 11.4 | 10.5 | 10.0 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.7 | 7.2 | 9.5 | 10.4 | 10.6 | 11.5 | 12.4 | 12.2 | 10.5 | 8.6 | 7.8 | 7.9 |
| Precipitation (mm) | 19 | 36 | 80 | 22 | 92 | 80 | 50 | 3 | 22 | 94 | 10 | 71 |
| Sunny days | 25 | 16 | 20 | 19 | 13 | 13 | 24 | 30 | 21 | 19 | 23 | 24 |
| Rainy days | 6 | 11 | 11 | 11 | 18 | 17 | 7 | 1 | 9 | 12 | 7 | 7 |
| Snow days | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit O'Brien during the most sunny months:
The largest precipitation sum in O'Brien is at