After 1430 hours yesterday, and during the evening, the thermometer dropped like a stone and reached a low just after midnight with a minimum of -5.1C. Any area with a hard surface near the edge of the town would have seen a reading as low as -6.1C. During the early hours the temperature recovered a little to give a reading of -2.4C at dawn today.
The hard frost was due to a significant rise in barometric pressure as an anticyclone settled over the UK with the highest reading since 8th February 2012 of 1040mb at 0800 today.
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