Are you a member of CoCoRaHS? If not you should consider signing up (no cost) and provide your daily reports.
CoCoRaHS is the Community Collaborative Rain, Hail, and Snow Network. Details may be found at the site.
Even if you are not a member, there is a link on the left side of the page Printable Forms that has some samples.
Edit: The Precipitation Report (Excel Form) looks like what you may be after. CoCoRaHS also has a reports page that may be used for data you have entered there.