Source: The Castaic, CA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.
Plant fescues when fall temperature reach about 75 F. The next best time to plant fescue seeds is when rising temperatures in spring reach 60 F. Summer isn't a good time to plant fescue lawns, because fescue grass tends to go dormant during periods of high temperature.
You can put down lime and fertilizer at the same time. As long as the turf is dry, the particles of either one will not stick to grass blades. They will simply fall to the ground and will start their good work as soon as it rains. Fertilizing fescue in the summer is not recommended. Fertilizing in hot weather robs food from the roots of the grass and makes it more susceptible to drought and disease. Do not be tempted to fertilize a fescue lawn like you would a bermudagrass lawn.