Does Wanstead have its own microclimate which makes it colder than its surrounding areas?
Wanstead’s own weatherman, Scott Whitehead, who tweets as @wansteadmeteo, has blogged saying he has been comparing temperatures since the snow, and found that:
Wanstead was a degree cooler than St James’s Park, half a degree cooler than Heathrow and marginally cooler than Northholt. Only Kenley, with its whopping 170m of altitude, was cooler. While half a degree doesn’t sound much it can make all the difference, as we saw at the weekend when some areas recorded inches of snow while others barely a centimetre.
Intriguing. More discussion at his post.