What is the best temperature to lay artificial grass?

Technically you can install artificial grass all year long when it is not snowing or raining, even though it can be easier when the weather is sunny and warm. Artificial turf is made of polyethylene and polypropylene, the nature of such products (plastic) is it will reacts to temperature changes. When it is warm, the artificial grass will be softer and more “relaxed” which can make it easier to handle and install. During the winter month or cold weather, artificial grass can be a bit more “stubborn” and rigid to work with, but by no means you can’t install artificial grass in cold weather as long as it is not snowing: the fact is that the installation will be a bit more difficult. Even warm or hot temperature works the favor for articulations grass, but a more comfortable weather is still preferred for your installation crews to work properly. Certain desert areas the temperature can reach way over 100 degrees F, no one should be working outdoors under those extreme hot conditions. 

In summary, you can get your artificial grass installed pretty much any time you wish as long as it is not raining or snowing, ideally, if you can plan well, mild warm days with sun shine shall work out the best.