The Farmer's Almanac is the only real venue to do this. I've got reports
from Colorado, Vermont and Florida (forecast: mild & moderate, cold & snowy,
cold & wet, respectively) that have been good. With the exception of
Florida which has been described to me as hot & humid as well as recent
snows in CO possibly.

Their website may have more, but does any one know of a good forecasting
source, particularly for Europe and other non-continental areas?