Why, its certainly reasonably accurate, but that doesn't make it a substantial contribution to the discussion. Particularly, in context, it is not a rebuttal to the climae != weather response to an attempt to argue that climate predictions should be dismissed because of the difficulty of specific weather predictions.

Predicting the long-term trendline around which a rapidly-changing variable will vary is a different (and, often, easier) task than predicting the specifics of the short-term variations.