FORECAST VERIFICATION
San Francisco, California Forecast Accuracy
See how Weatherkind forecasts for San Francisco, California compare with real observations from nearby weather stations.
San Francisco forecast verification record
Comparable forecast regions near this location; these are not measurements of the selected point itself. Results cover the last 30 days.
| Forecast | Typical error | Bias | Comparisons |
|---|---|---|---|
| 0 hours ahead: temperature | 1.8°F | 0.5°F | 372 |
| 1 hours ahead: temperature | 2.0°F | 0.5°F | 370 |
| 2 hours ahead: temperature | 2.0°F | 0.4°F | 357 |
| 3 hours ahead: temperature | 1.9°F | 0.3°F | 361 |
| 4 hours ahead: temperature | 1.9°F | 0.6°F | 109 |
| 5 hours ahead: temperature | 1.6°F | 0.2°F | 112 |
| 6 hours ahead: temperature | 1.6°F | 0.2°F | 344 |
| 12 hours ahead: temperature | 1.7°F | 0.2°F | 349 |
| 24 hours ahead: temperature | 2.0°F | 0.2°F | 333 |
| 1 day ahead: high | 2.5°F | -0.2°F | 86 |
| 1 day ahead: low | 1.2°F | -0.4°F | 86 |
| 2 days ahead: high | 3.2°F | -2.1°F | 81 |
| 2 days ahead: low | 1.4°F | -0.3°F | 81 |
| 3 days ahead: high | 3.9°F | -3.3°F | 82 |
| 3 days ahead: low | 1.3°F | 0.3°F | 82 |
| 4 days ahead: high | 3.9°F | -3.4°F | 76 |
| 4 days ahead: low | 1.1°F | 0.2°F | 76 |
| 5 days ahead: high | 3.5°F | -2.9°F | 76 |
| 5 days ahead: low | 1.2°F | -0.1°F | 76 |
| 6 days ahead: high | 3.7°F | -3.0°F | 78 |
| 6 days ahead: low | 1.4°F | -0.3°F | 78 |
| 7 days ahead: high | 4.1°F | -3.9°F | 73 |
| 7 days ahead: low | 1.3°F | 0.1°F | 73 |
| 8 days ahead: high | 6.4°F | -6.4°F | 60 |
| 8 days ahead: low | 1.8°F | 0.0°F | 60 |
| 9 days ahead: high | 6.7°F | -6.5°F | 64 |
| 9 days ahead: low | 2.0°F | -0.6°F | 64 |
| 10 days ahead: high | 7.7°F | -7.0°F | 71 |
| 10 days ahead: low | 2.2°F | -0.7°F | 71 |
| 11 days ahead: high | 10.8°F | -10.4°F | 74 |
| 11 days ahead: low | 3.1°F | -2.1°F | 74 |
| 12 days ahead: high | 11.1°F | -11.0°F | 80 |
| 12 days ahead: low | 4.0°F | -3.4°F | 80 |
| 13 days ahead: high | 10.7°F | -10.7°F | 86 |
| 13 days ahead: low | 3.9°F | -3.4°F | 86 |
| 14 days ahead: high | 11.0°F | -11.0°F | 90 |
| 14 days ahead: low | 3.8°F | -3.5°F | 90 |
Lower typical error is better. Positive bias means forecasts ran warmer than observations; negative bias means cooler.