The snow drops have been out under the trees for at least two weeks now. When I went out at lunch time I saw a magpie flying with a long twig in its beak: it must have been making a nest. However, tonight the temperature tonight has fallen to -3C and looks as if will drop further before dawn if the sky doesn't cloud over. Tomorrow we are having a new gas boiler fitted.
The temperature by 7:00am was below -6C according to the Reading University Atmospheric Observatory, which is just 10 minutes walk from here.