Many thanks for sharing the pictures Ian - it's almost as if someone had
doctored the pictures - I wonder why the rime had not formed on the
grass?

Cheers
James
--
James Brown

Yes, the wonders of Photoshop. Seriously, those were great
pictures. The reason there is no rime on the grass is very likely to
be due to the heat being conducted up from the ground. I have seen
this only *once* before, in my own back garden. It makes you take a
hard look and have a bit of a think. The air temperature has to be
only just below freezing and the ground unfrozen beforehand for this to
happen.

Tudor Hughes, Warlingham, Surrey, 556 ft.