For sure. Generally speaking, the more land-locked you are, the greater the seasonality. I remember one of the first days of a Meteo class I took at PSU the professor saying something to the effect of "Miami has never hit 100 and never gone below freezing, while Bismark, ND has hit [insert insanely high and low values]. That my friends, is seasonality. Large bodies of water work wonders for moderation."