Northlanders love to watch the weather - especially those that garden!  One of the tell-tale signs of winter starting (or ending) is the first and last frost date.

The ability to forecast when the first frost will occur is important to the fall harvest process;  Crops must be out of the ground by that point - or - covered - to prevent loss.  Consequently, people also look ahead to the date of the last frost in the spring to alert them as to when they can safely plant their gardens.

Although it varys from year to year, the National Weather Service tracks this sort of data and has made it available to people via their website.  To access that data, click here.