Dahlia Lover,
I'm sure it is not only damp, but poor air circulation...because as soon as the weather turns icy, what do we do but wrap up with bubble polythene and shut down vents and windows. Poor air circulation in damp conditions encourages Botrytis and also other rots and moulds. Try to open vents and windows etc at every opportunity!
Micky
The heat of hot peppers varies enormously, take a look in the seed catalogues and you'll see that many now offer a sort-of heat rating, this might help you to select one that'll suit your taste buds!