The past two days have been very pleasant for early February in Iowa. Abundant sunshine and warm winds have helped to push temperatures near 50 degrees for some parts of Iowa. The lengthening days and increasing solar incidence angle provide us with much more energy from the Sun than just a few weeks ago. The featured chart is of recent daily solar radiation reports from the Ames ISUAG site. The past two days have totals that dwarf anything we have seen since the first of November. Air masses are still very important this time of year and colder air will arrive this evening with highs below freezing on Friday.

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