I'm an agent in Yonkers NY and service all of Yonkers and lower Westchester. The best way to get info on the crime stats for any neighborhood is to call or stop the local precinct. The local precinct for Hawthorne Ave is the 3rd Precinct and it is on Riverdale Ave, one block east of Hawthorne and running parallel to Hawthorne Ave.
You can also sign up for email alerts at spotcrime.com, enter the address and you'll receive an email every week of any crimes that have occurred within a 5, 10, 20, etc, mile radius.
I think one or both of these would be the most accurate and best information you can get.
Licensed Real Estate Salesperson NYS
Margot Bennett, Inc.