On August 23, 2022, the 74-year-old singer went through a 12-hour procedure to remove a cancerous tumour from his mouth.
It was followed by reconstructive plastic surgery and stints in rehabilitation, including eight weeks of radiation treatment, and further surgeries.
Last month, Farnham was pronounced all clear of cancer.
In his first personal statement since the surgery, Farnham said "I am the luckiest man I know right now".
"It's been a year since my first surgery and to be honest I've lost count as to how many other procedures there's been since then. I'm sure someone's kept track of them all - let's just say, there's been a few.
"But, I'm home now and I'm a very grateful and happy man. I'm sitting here in my living room lapping up the attention from my beautiful wife, Jill, my boys Rob and James and my mini Schnauzer, Edmund.
"It's only now that I can start to appreciate and comprehend, for myself, how many messages of love and support have been sent to me over the past year.
"I don't know what to say, other than thank you so very much.
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"It honestly means the world to me. Thank you to everyone who took the time to write and send a message.
"Today is a special day. And I'm going to mark it by having a pizza - because I can! I can't wait to see what might be next on the menu. Bring on 2024."
The Farnham family also issued thanks both to supporters around Australia and the world, as well as to the medical workers who took care of him.
