On Mon, 24 Dec 2007 09:33:09 -0000, Darren Prescott wrote in


No. For you to record an air frost, it has to be below zero.

It's a shame that digital thermometers don't display the (probably
mathematically incorrect) -0.0C as there's a tiny window of negative numbers
which will round up to 0.0C rather than down to -0.1C. (Technically anything
from -0.00...1 to -0.0499... - okay, not exactly a great range but it still
means once in a blue moon a frost will have been missed due to rounding).

Not only would one need a high resolution sensor/display, but one which is
probably more accurate than is currently possible.

--
Mike Tullett - Coleraine 55.13°N 6.69°W posted 24/12/2007 10:02:02 GMT