I learned something new about the month of May

I checked the rain gauge when I got home from work yesterday, May 1st, and it appears that we got 4.5 inches of rain between Monday, April 30th,  and yesterday at 5:30 pm.

At 9 pm, I checked the rain gauge again and it had another inch of rain in it.

I don't know if this rain gauge is right so I might set up a second rain gauge to compare it to. I actually have the other gauge, but it doesn't