Given:
The average daily low temperature is 9 degrees Fahrenheit.
The average daily high temperature is 14 degrees Fahrenheit.
To find:
The difference between average low and high temperature.
Step-by-step explanation:
The difference between the average low and high temperature is,

Therefore, the difference is 5 degrees Fahrenheit.
Final answer:
The difference between average low and high is 5 degrees Fahrenheit.