It may be a little hard to believe given the current warm temperatures, but this past week we had four mornings with frost delays. People often ask how we can have frost when the temperatures we see reported are well above freezing.
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| Another frosty morning, despite a registered temperature above freezing. |
Yes, as we were all taught at an early age, water does need to be at 32 degrees in order to freeze. The discrepancy between what we see on our phones (or from our weather station) and what we see on the turf primarily comes from the difference in elevation. Most weather stations are monitoring temperatures at about head height, not at ground level. Given that hot air rises and cool air sinks, it isn't uncommon to have a difference of several degrees between the two points.
Traditionally, we are on the watch for frost anytime the temperature being displayed dips below 40 degrees. The good news is that it's looking like we may not need to worry about another frost delay for the next six months.
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