On Wednesday, January 20, 2016 at 1:16:33 PM UTC, Ron Button wrote:
On 20/01/2016 07:57, Scott W wrote:
-5.7C the overnight low in Wanstead - edging yesterday's and making it the coldest night here for three years

You have a real frost hollow there Scott,despite clear skies all night
here in the Woodford heights no lower than 2.2c !

RonB

I quite like it, Ron. When we get snow this area seems to conserve it longest. I've lost count of the number of people who've remarked to me how much deeper the snow is here when they walk down from Wanstead. Perhaps the frost hollow effect is as good as living at 80m?

During my ride home the other night around midnight I did my own re-enaction of T.J Chandler's London traverse. The results, using a 10 quid thermometer taped to my bike, were interesting:
London Bridge: 2.7C
Tower of London: 2C
Bow flyover: 1C
Startford station: 0.7C
Maryland Point: 0C
Forest Gate: -0.7C
Middle of Wanstead Flats: -2.5C
Edge of Wanstead Flats: -2.2C
Aldersbrook estate by the entrance to Wanstead Park: -2.7C