The featured graphs show the daily high and low temperatures reported by the Des Moines Airport ASOS along with climatology. Red colors depict observations above average and blue below. A cursory look at the plot indicates much more red on the low temperature graph and the raw numbers show a 3 degree warmer difference. This year is consistent with the recent yearly trend of warmer than normal temperatures with highs much closer to average than lows. In general, low temperatures are increasing the most statewide with the high temperature trend neutral to slightly negative over the past 10-20 years.

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Tags:   2007