If you were already concerned by the short distances that electric cars could cover, here is some advice

If you were already concerned about the short distances that electric cars could travel, do not go in either frigid or hot temperatures.

The average EV battery range in AAA’s test was 105 miles at 75 degrees but dropped 57% to just 43 miles at 20 degrees. Heat also sliced the cars' ranges but by not as much: The cars averaged 69 miles per full charge at 95 degrees, 33% less than in 75-degree weather. . . .

If there is a 57% drop between 75 and 20 degrees, what happens if it gets really cold?  I would assume that the distance drops even further.  If the relationship is linear, these first two observations imply a distance of only 20 miles at a temperature of zero.  My guess is that things are even worse than that as the drop off may increase with lower temperatures.