Dynamic range in sum formula with constraints

I'd like to sum up some data within the current month but only until the current date.

The sheet looks something like this:

So there are 2 things to consider:

• 
  

  I'd like to not use the static formula =SUM(B32:B59) to sum up all values from february but rather have some kind of dynamic formula which automatically sets the ranges of the SUM to the first & last date of the month in which the sum formula "resides".

  
  


• 
  

  The end of the sum range should be constrained to not exceed the current date

  
  

Is this possible at all and if so, how?

Thanks