Cynthia,
I am not sure how well your soil drains, but with that kind of watering since 13th (which is about 7 days now), you have already water stressed the tree.
Please stop watering them........I hope the roots were strong enough to withstand all that the stress.
When you notice the top 1 inch of the soil becoming dry, you can start watering once every two weeks until they leaf out. A 2 to 3 minute watering with garden hose will be sufficient until early summer or the tree starts foliage. Then you can start more frequent watering.