If you want it to sync with Google calendar try Smooth Calendar. If you want one wher you senter your own events, I line AA Taskas it will show the full month. Then, it has another widget that will show just the daily events.
+1 for Jorte. It is by far the best calender widget I have come across plus the price is right since it's free! It has 25 different widgets, and like Firefighter said from 1x1 all the way to 5x5. with 7 color combinations. You can set it up for Monthly, Monthly + Tasks, Vertical, Two Weeks, Weekly, Agenda, Task, and Calendar views. You can make it totally transparent, not transparent, or various percentages in between. I think it is one of the best things I have ever downloaded for my phone. And like I said it's free!
I use both Smooth Calendar and Jorte. I like the Smooth Calendar widget because it allows you to see your next 3 events on your calendar. Then Jorte is great as a monthly calendar. My only problem is that the text is too big and should be smaller.
I have tried Jorte, Calengoo and pretty much every other calendar widget I could find and for me the best is Android Agenda Widget. It syncs with google calendar; is scrollable; very customizable and has multiple widget sizes.