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Originally Posted by mntlblok
Was surprised to find some little patches of frost on the lawn early this morning. Did a bit of googling and was even more surprised to learn that, with the right set of conditions, ground temperature can be as much as 10 degrees cooler than the temperature five or so feet above the ground - the height at which temps are reported. What Causes Frost?.
Reminds me. We're giving the hobby of tropical hibiscus one more try. Any fellow enthusiasts looking in here? |
Sometimes around here in the winter what looks like frost is just heavy dew on the golf courses. Rub it with your hand or foot and you can tell for sure. That said, yes, there are “microclimates” that may be only a few square feet or yards where the temperature can be quite a bit different due to such things as a warm wall nearby, or foliage that slows a breeze, or something like that.