The featured chart is of daily average high and low temperatures for Ames based on observations since 1964. The overall average is shown in the faint color. The two other lines for daily highs and lows represent days on which snow cover was or was not reported. The effect of having snow cover is very clear with temperatures always lower on average. The simple reason for this is an increased albedo, which keeps the suns energy from warming the ground which warms our air! If you want warmer weather, get rid of the snow on the ground (chicken and egg process).

Voting:
Good = 49
Bad = 20

Tags:   snowcover