How's the distribution of the errors? For instance I don't care if it's better on average by 1 Celsius each day for normal weather, if it once every month is of

How's the distribution of the errors? For instance I don't care if it's better on average by 1 Celsius each day for normal weather, if it once every month is off by 10 Celsius when there is a drastic weather event, for instance. I'm all for better weather data, it's quite critical up in the mountains, so that's why my question about how reliable it is in life&death situations.