Probably not. that is still a slower time of year. Check US's website. If the express pass price is around $40 or less, then Universal is expecting not much of a crowd. Do they close like 7 or 8 pm. Yep, US is then thinking slower time.
Most of us have not found a good crowd calendar. Thus, we look at the price of the express pass. The higher the cost, the more crowded US thinks it will be.
Have a great time! We are AP holders and like the parks.