Best temperature for laying sod is 60-80 degrees. New turf needs water, air, and sunlight so it is important that the rolls do not sit on a pallet for a long period of time.
Early spring is the best time to lay sod because it is not dried out by the humidity. In most southern states it can be humid. When it is humid the new rolls must get off the pallet quickly so that it can get air and water.
If turf is laid in the middle of the summer you have to remember the grass rolls have to be laid when it arrives from the farm. It can not sit on the pallet for hours. The turf grass should be laid and watered to increase the chances of the sods survival. Never order sod that will not be laid in the same day.
The the grass should be watered at least 2 times a day for 30 days. once the grass rolls is rooted you can change the schedule according to where you live and if your yard is shaded or sunny.
Laying Sod in the winter can be done but we do not recommend it unless you are building a house and you need to the ground from washing away or if your lawn is most dirt and you need to keep the yard from being muddy. There is risk involved with laying grass in the winter. The sod can suffer if frost occurs so it is important to wait until spring when the temperature warms up.
Summer is usually hot and the new grass needs a lot of water. In some cases you have to water your lawn at least 3 times a day and for at least 30 minutes each time. When the sod is not watered enough it will dry out and eventually die. If the sod is not watered for a few days the chance of surviving is slim. So if you have new grass make sure you water it in good.