I think the buildings also make a difference, normally 0.5 - 1.5c warmer in central Kingston than surrounding open areas at Ham Common, Richmond Park and Bushey Park
From what you say, I might have seen some snow had I been at work in Fetcham. But it has been rain with bits of sleet in the rain for last 6 hours here in North Kingston. Temp has gone up and down between 1.8c to 2.5c during the rain
Originally Posted by: Surrey John