And the «weather» right now, what with the jet stream way south and a weak lingering LaNina still haunting, one system after another dropping tons of precip on the SW, sure doesn't appear to be fitting in with their projections. (wattsupwiththat.com)
If circulation patterns mean that you get more precip on land versus ocean, then you could theoretically have the same amount of snow but greater coverage because if it snows on the ocean you don't get snow cover... (tamino.wordpress.com)
Precipitation affects growth, but in the far past you do not usually have data on precip to factor it out and infer temp. (judithcurry.com)