I got a huge load of white oak logs this spring and early this summer. They were all green from freshly cut trees. You could see the water dripping out when you hit them with an axe. I split pretty thick, perhaps about 6 inches. Most of the wood was stacked in the barn in May and early June and did not have direct sunlight. I just tested some fresh splits and they are all around 26%. Summers here in central oregon are dry and warm with some wind, but not what I would consider ideal drying conditions. From everything I was told oak takes 3 years to season correctly. It is looking like this oak will be ready to burn for the winter of 2023.