The quiet conditions continued on Wednesday with the freezing fog clearing by 09.45, followed by many hours of sunshine. After the coldest night this month, and a slow start after the fog had cleared, the thermometer eventually rose to 7.7C at 13.38, being just 0.3C below the average.
It was another dry day, the thirteenth consecutive dry day with the UV level slightly lower than on Tuesday with a value of 1.2, still classed as ‘Low’.
During the evening the thermometer hovered around 2C for many hours, but just after midnight began to slowly fall reaching a minimum of -0.4C at 03.24 in the early hours of Thursday, producing a ground frost and very brief air frost.
After 03.30 the advance cloud from a ‘cold’ weather front stopped the temperature falling further, reversed it, so that buy 08.00 the thermometer read 4.1C, which was the first morning at that time being above freezing since the 5th.
The past three days has seen a very quiet air movement from a southerly quadrant. As the anticyclone begins to diminish and move away the breeze on Thursday will come from the northwest. The barometric pressure at 08.00 read 1032.3mb, still high, but down 15mb since its peak on Sunday.
Thursday began with no sunshine but thick, low cloud from the weather front passing over the area. There was a little moisture in the air, not even amounting to drizzle.