Freeze warning in north central North Dakota. Obviously this link will break once the alert timeline expires.
I remember growing up in North Dakota. The first freeze was always around Halloween, it seemed. Either it was going to be a very, very cold night "trick or treating," or a "not very cold night" trick or treating.
By the way, on a cute little YouTube video, a North Dakota student lists the four seasons in North Dakota: winter, still winter, not winter, almost winter.