I agree. It is more readable when you include the units of measure.
If you can't find the degree symbol, I like to use "degC".
-5degC to -29degC.
HIGH: -5degC
LOW: -29degC
You could also write it in C. I like to write all of my documents in a popular programming language.
printf("hello world, here's the temperatures!");
for (bTemp = -5; bTemp >= -29; bTemp--)
{
printf(" %d degC\r\n", bTemp);
}