If you have even considered growing pecan trees from seed, the nuts will need to go through a process called stratification before they will germinate properly. Stratification is a simple process that involves soaking dry seed in water then storing that wet seed in a cool moist condition for 90 to 120 days. With stratification we are basically mimicking what happens in nature. A squirrel buries a pecan in the soil during the fall where it remains cool and moist all winter long. The squirrel-planted seed doesn't germinate until the following spring when the danger of frost has past.
For the stratification process to work effectively, the nuts should be held in cold storage at between 32 and 40 F (typical refrigerator temps). For northern pecan cultivars, germination is more uniform when nuts are held a full 120 days in stratification. By stratifying nuts now, you will have nuts ready for planting by May 1st, a perfect time for planting pecan seeds.