Would Dewy Water More?

[Harvest Moon Kid]

Hello Everyone,
Does Dewy do more Watering on the crops? Last time around he mostly wouldn't do a bunch squares out in my fields would only water 6-9 at a time, but I noticed when it was round [9/10am] Dewy did more watering and the level of chemistry with him was very low (2%), so it is possible that he get more stuff done early morning rather than late at noon?

Thank you, if anyone can help me!

EDIT Title: About Dewy