August afternoons in New City stack up heat until a thunderstorm walks north along the Hudson valley and rinses the hamlet clean by six. Summit Lawn & Maintenance mows around that weather — trimming, edging, holding the season's rhythm through the muggy stretch when grass grows fastest and scorches quickest. Lawns on the higher lots dry out days before the low ones do, so a route through town is really a route through a dozen small climates. Done right, a yard comes out even, green and squared off at the walk no matter which of those it happens to sit in. New City, Bardonia and Congers, tended all season long.