Thank you!

I refocus every 1 degree on my F/6.5 130mm refractor. The change in focus and position is noticeable.

So like Joel says "it depends". If you have a carbon tube and generally stable optics then 1 degree is likely too sensitive. If you have a big long refractor with a large aluminum or steel tube than 1 degree is probably too little. Also these are degrees Celsius which is about 1.8 degrees Fahrenheit.

Thanks,
Jared