The air temperature in Yakutsk this morning was -42 ℃. At 13 o’clock in the afternoon, the air temperature increased

The air temperature in Yakutsk this morning was -42 ℃. At 13 o’clock in the afternoon, the air temperature increased by 3 degrees. At 8 pm the air humidity is 65%, the northwestern wind is 2 m / s, the air temperature is -42 ℃. Find the average air temperature for the day.

1) Add up all readings.
2) Divide the total by the number of observations. This will be the average daily temperature.
First indication: -42 ℃
Second reading: increased by 3 degrees, i.e. (-42) + 3 = -39 ℃
Third indication: -42 ℃
(-42) + (- 39) + (- 42) / 3 = -123 / 3 = -41 ℃
Answer: -41 ℃