The average temperature on day 2 was -54.5.
This is usually calculated with the sum of the numbers divided by how many numbers are present.
Day one = -82-(-24) = -58
Day two = -83-(-26) = -57
Day three = -84-(-27) = -57
Day four = -84-(-28) = -56
The day with the greatest average temperature was Day one = -82-24/2 = -53.
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