To find the difference in temperature between the lowest temperature of -6°F and the highest temperature of 15°F, you can use the following calculation:
- Start with the highest temperature: 15°F
- Subtract the lowest temperature (-6°F) from it:
\[ \text{Difference} = 15°F - (-6°F) = 15°F + 6°F = 21°F \]
So, the difference in temperature is 21°F.