Sunday, 19 February 2012

Where are those mild early spring days?

The daffodils are in bud but so far this year there has been a shortage of those soft late winter days. In recent years it has been possible to feel pleasantly warm in the garden at some time in the late winter. Indeed, in 14 out of the last 23 Januaries there have been maximum temperatures above 13 Celsius and only 5 of the last 22 Februaries have had maximum temperatures under 13 Celsius. So far this year just one day, the 12th January, has had a temperature above 13 Celsius. This month has not had any temperatures above 12 Celsius yet, although that should all change over the next few days. A steady rise of temperature should ensure maxima in the mid to high teens around Thursday or Friday, a welcome change after the cold weather of early February. Will records be broken? Unlikely. In 3 out of the last 22 years maxima have exceeded 17 Celsius in February and on 23rd February 1990 the temperature here in Morden reached 19.0 Celsius. This exceptionally mild day in 1990 appears to be the record to beat, although the last day of February 1959 also had temperatures close to 19 Celsius in other parts of Greater London.

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