My rain today still says 0.28". So if it was reporting the last 24 hours it would have changed since it rained on and off about all day yesterday. If my rain today was a "running last 24 hours" as HAM says it would have changed from early this morning.
Also, it has rained a good bit today. With that said, if it were a "running last 24 hours" it would have changed from this morning.