lcd.clear();
lcd.print("CPU");
lcd.setCursor(0,1); (1)
lcd.print(celsius);
lcd.print(" 'C") ;
lcd.setCursor(0,1);
At (1) - resetting the cursor to 0,1 will start writing at the "P" of CPU. Set it eg to (0,5)
2/ Write " " spaces between readings to make them readable.
Allan