See our page on Area of Adaptation for more about temperature ranges and survivability of grasses in various climates. Grasses with a high tolerance of cold. See Hot graph above. Also read about Area of Adaptation for grasses suitable for warm and cold climates. Grasses listed below with High Tolerance of cold do better and can survive at lower temperatures.
Winter kill can result in grasses with low tolerance to cold temperatures.
A higher tolerance means the grass will stay greener longer and be more likely survive extended drought conditions without water. All grasses need a period of time to recover from the abuse suffered from traffic. High tolerance grasses can sustain more traffic before noticeable injury. Rates and requirements are two different things. A properly managed lawn includes a fertilization program to provide for a proper growth and green color.