January 2020 in central England

January 2020 was the 12th mildest in the daily series which started in 1772, with a mean temperature of 6.45°C, which was +2.63°C above the 1961-1990 LTA. That made it the mildest January since 2008. We have seen only eight colder than average January’s in the last 30 years, the last significant cold one being in 2010. January’s continue to warm in central England at the rate of +0.093°C per decade if you use a linear trend on the daily extreme data that started in 1878.

Sorry for the delay in publishing this report on central England temperatures for the month of January, thanks for this delay go to the Met Office in processing last months finalised data. Their download site which had been very reliable for much of last year has been down more that it’s been up as regards the latest available daily data so far in 2020. I get the distinct impression from how I see the CET website run that Manley’s CET series, which the Met Office adopted back in the early 1970’s, is a bit of a chore to maintain and rather unscientific in these days of whiz bang climate models.

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