"Phil Layton" wrote :

0650Z: SSE06KT SKC 00/M01 Q0991=
RMK: Frost. Tn only -0.8 which is a lot higher than LHR or LGW with -5/-4
respectively.
I guess being higher up the airs on the move and a bit milder.

Agreed ... here, high in the Chilterns, we've bumped along at
zero to minus 1 all night, with a F2-3 southerly breeze.

Philip E
Whipsnade