There is nothing wrong showing the truth. You can annotate that pick and put some message to draw the attention of the viewers. Try to find the reason of that unusual jump for that month so that you can answer that though annotation or you can put some description in title or sub-title of that graph.
I've put some annotation for reference. You can take it as example.
Let us know if this help.
thanks for your response,
I wanted to show 30K but graph should adjust in that way
ex: if its below 9k now graph is adjusting as max 9k range but it should adjust around 15k so that my values appear in middle of the graph area rather than top.
and when its 30k I am okay to show at 30k postion but rest of the values axis has to adjust little higher so that graph looks good.
I am more look in look on feel point of you.