Late spring and early summer both have a higher chance of hitting 70 degrees on a consistent basis. On the other hand, late summer can get quite hot, which can cause the asphalt to overheat and become loose. It’s possible to pave in the winter, but ice and freezing temperatures make it difficult. You could find success in autumn, but cold nights may cause the asphalt to cure poorly. Accordingly, late spring or early summer are usually the best times to pave your driveway.