Strength of schedule is calculated from the opponents projected fantasy points allowed for the PK position. The best rating is +16 which gives the player the advantage against the defense and indicates an easy opponent, the worst rating is -16 which gives the defense the advantage and indicates a tough opponent.
He's averaged over 90% accuracy for the last two years. He no longer has to deal with the winds of San Fransico which only helps with that percentage. This offense will be good enough to give him opportunities making him a solid pick up in later rounds for those willing to wait.
After 14 long years in Cleveland, Dawson joined the 49ers in 2013. The results were pretty danged good, with the 39-year-old tying a career-best with 36 made field goals. That production, and the 40+ extra points that came with it, merited a sixth-place finish among fantasy kickers in 2013, and there's little reason to think Dawson can't at least match that mark this year.