I actually had my serves clocked today.
98-108mph on my 1st serves which has a 40% accuracy rate
70-88mph on my 2nd serves (kicked) which has an 86% accuracy rate.
(rates are based on the last time I was playing competitively which was 6 years ago in college)
Not bad for a tiny guy being totally out of shape and using someone elses racket after 6 years of being absent from practice..I think anyway.