Averages (climate) can be much easier to predict than particular values (weather). As a mathematical analogy, we cannot predict accurately whether flipping a f

Averages (climate) can be much easier to predict than particular values (weather). As a mathematical analogy, we cannot predict accurately whether flipping a fair coin is going to come up head or tails, but we can predict that if you flip it 1000 times it's going to be between 450 and 550 heads with 99.8% probability.