What kind of weather does Delaware have, and is geothermal heat with
nothing else enough?

I have friends who moved to Delaware 6 years ago, and she complains
that it almost never gets hot in the summer. It's almost always cold
and wet. (I thought the weather was like Baltimore, which has plenty
of warm days and hot days.)

I'm thinking it's not so bad if it's cold and wet outside, if it's
warm enough inside. Not only is it not so bad, but it if it's cold
inside because geothermal isn't enough, it's will make it seem like
it's cold and wet outside a lot more than it really is. (Even if
someone goes out every day????)

I was there on Sunday, and it was sort of cold in the house and out.

Does geothermal put out enough heat to make most people comfortable?