Storing Wheat

A useful article from the Utah State University Extension office on the basic types of wheat, storing wheat, and environmental conditions (heat and/or humidity) that can degrade wheat. As long as wheat is stored in a cool environment, it can be stored up to 6 months in a pantry; or up to a year in a freezer. However, in sealed containers (e.g., sealed #10 cans or plastic buckets) it can last for decades.

Flour generally has a shorter shelf life, although sources seem to disagree as to the time (see, e.g., here and here).