Smart Locks Through a Provo Winter
NOAA's 1991 to 2020 normals put the average January low at the Provo BYU station at 23.8°F. Check the operating range of any lock you consider: Yale, for example, rates the Assure Lock SL from -22°F to 140°F, which covers a typical Provo winter night with room to spare. Provo's record low of -30°F is colder than that, so treat the rating as a real limit.
On most smart deadbolts the batteries sit in the interior unit, at room temperature. The keypad and bolt take the cold, and a frame that shifts in winter makes the motor work harder, so have a dragging bolt adjusted before it jams.
Provo's median age is 23.6, per the American Community Survey, and in shared houses near the BYU campus a code per roommate beats a drawer of copied keys.
Record low: Wikipedia, Provo climate table.