Average annual temperature is 19.4 °C
Absolute maximum temperature: 41.4 °C
Absolute minimum temperature: -1.2 °C
Number of sunny days: 195 days
Number of rainy days: 170 days
Look at detailed online map of O'Farrell
* Weather data for O'Farrell 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) | 24.0 | 26.5 | 27.2 | 30.1 | 31.8 | 38.1 | 38.4 | 41.4 | 37.9 | 32.1 | 27.6 | 20.4 |
| Average daytime temperature (°C) | 15.6 | 17.5 | 21.0 | 22.7 | 28.2 | 33.9 | 34.8 | 37.1 | 32.0 | 24.9 | 18.1 | 15.2 |
| Average temperature (°C) | 10.8 | 11.7 | 15.0 | 16.9 | 22.6 | 27.3 | 28.9 | 30.9 | 26.3 | 19.5 | 13.0 | 10.0 |
| Average night temperature (°C) | 7.3 | 7.7 | 10.7 | 12.4 | 18.1 | 22.0 | 24.4 | 25.9 | 21.6 | 15.3 | 8.9 | 6.0 |
| Absolute minimum temperature (°C) | -0.4 | -1.2 | -0.2 | 6.9 | 10.8 | 19.1 | 21.2 | 20.8 | 19.0 | 2.6 | 0.6 | -0.7 |
| 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) | 10.0 | 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) | 6.4 | 6.8 | 8.2 | 8.0 | 10.2 | 11.7 | 11.7 | 12.0 | 10.3 | 7.9 | 7.6 | 7.4 |
| Precipitation (mm) | 103 | 126 | 148 | 188 | 127 | 68 | 102 | 23 | 75 | 141 | 74 | 62 |
| Sunny days | 18 | 10 | 13 | 11 | 11 | 14 | 17 | 25 | 16 | 19 | 20 | 21 |
| Rainy days | 13 | 18 | 18 | 19 | 20 | 16 | 14 | 6 | 14 | 12 | 10 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit O'Farrell during the most sunny months:
The largest precipitation sum in O'Farrell is at