[TPM SLIDESHOW: Rep. Gabrielle Giffords: On The Job In Arizona]
Kelly credited Giffords' "perfect care" for her recovery, which has been chiefly provided by University of Arizona Medical Center doctors Peter Rhee and Michael Lemole.
Kelly also said that while the shooting has been very difficult for him, it has shown the world "what Tucson is all about."
"I think all Americans are very proud of what they've seen," he said. "The memorials outside this hospital, in front of the Safeway, in front of Gabby's office has been really a testament to what this community is all about."
Giffords on Friday is scheduled to be moved to the TIRR Memorial Hermann Rehabilitation Hospital in Houston, Texas, for continued care.
Kelly thanked officials at the University of Arizona, the Pima County Sheriff's Department and many others.
"The love and support that we've received is a bit overwhelming," Kelly said.