I have been keeping bees for about 10 years on the same area, and my honey begins to crystallize in about 4-6 months in 5 gallons buckets. This was an unusual year and everything came early. I even harvested early and had the highest production ever since I started. But my 5 gallon buckets are already crystallizing in about only 4 weeks. I am in the same area with I presume the same flora. Any reason for this change?