Monday morning (10/14) we had the first frost of the fall season. Overnight low temperatures were down in the low 30's and skies were clear which is a combination that will almost always result in frost. However, having temperatures around or below freezing does not neccessarily mean frost will develop. Heavy cloud cover can trap heat given off by living organisms and keep the ground warm enough to avoid frost. Conversely, air temperatures can be in the mid to upper 40's and frost can still develop if skies are clear overnight and there is no wind.
It is important to stay off the turf when frost is present. Frost occurs when the water in the turfs cells freeze. Traffic on this turf can cause the ice to rupture the cells resulting in turf injury.
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