The temperature at 3:00 am was -17 f by noon the temperture was -17.8 f at what time was it the coldest?

2 answers

It was colder at noon. -17.8 is farther below 0 than -17.
The temperature at 3:00 A.M. was �17.3�F. By noon the temperature was �17.8�F. At what time was it the coldest