Between the Tropic of Cancer and the Tropic of Capricorn. I don't know the specific numbers.
The Tropic of Cancer and the Tropic of Capricorn
Polar latitudes experience the most variation between seasons, with long, harsh winters and brief, cool summers. Equatorial latitudes have the least variation, with consistently warm temperatures year-round. Subtropical and intermediate latitudes fall somewhere in between, with noticeable changes in temperature and weather patterns between seasons.
Most of the United States is located in the westerlies wind belt. The westerlies blow from the west to the east in the middle latitudes between 30 and 60 degrees north and south of the equator.
All of Minnesota ... as well as all of the rest of the continental US and most of Alaska ... is situated between those latitudes.
Most temperate climates are located in the middle latitudes. The middle latitudes has four temperate climates such as humid continental, marine west coast, Mediterranean, and humid subtropical.
High latitudes within the Northern Hemisphere
Usually 72 - 76 degrees F, but most corals prefer different temps, when answering this question it depends on if it is soft corals or hard corals, but this is the average temp
Like most fish, corals do not have a certain size that they stop growing there for, they will continue to grow. Most corals do slow down when they get huge sizes but never stop.
Temperate zones are found between 30 and 60 degrees latitude. They are characterized by wet cold winters, dry warm summers. The parallels (as the latitudes are sometime known as) are the climate most agreeable for deciduous trees.
Most true corals are from the tropics, and so are adapted to be in water between 75F-82F.
Most corals have attach themselves to underwater objects and remain there for life. Some corals possess toxins that make them unappetizing to underwater creatures.
Cold and Article.