Extraction by Mask-Seeking Guidance

Discussion created by johnnash4444 on Mar 28, 2013
My professor was unable to resolve this problem and suggested that I post the problem here. I am using ArcGIS Desktop and want to extract by mask precipitation data (IDW) just for the state of connecticut. I use the precipitation data as the input and the mask as the state of Connecticut and there is no error but it doesn't look quite right. It extracts the data for the most part but isn't very precise, especially the southwest corner of the state where the state juts out. Enclosed find the attached image. My professor said he is having the same problem as me and suggested I post my problem here. This is my first GIS class so any help would be greatly appreciated. Thanks