The total rainfall for the three months (-0.86, 2.56, and -1.24 inches) is 0.46 inches. Compared to the yearly average of 0.16 inches, the total for the three months is greater, indicating above-average rainfall during that period.
The total rainfall for the three months is -0.86 + 2.56 + (-1.24) = 0.46 inches. To determine whether this total is greater or less than the yearly average, we need to compare it to the average.
The average of -0.86, 2.56, and -1.24 is (-0.86 + 2.56 + (-1.24))/3 = 0.16 inches.
Comparing the total rainfall for the three months (0.46 inches) to the yearly average (0.16 inches), we find that the total rainfall for the three months is greater than the yearly average.
This indicates that, on average, there was more rainfall during the specified three-month period compared to the typical yearly average. The positive difference of 0.30 inches suggests an above-average rainfall pattern for the given period.