Wednesday brought bright intervals that saw the thermometer rise to 10.0C, mild for the time of year and 1.9C above the average.
The past night was deceptive as the temperature remained relatively stable until the late evening and then dropped away to reach a minimum of 1.4C at 04.34, 1.0C below average, before rising again as a weather front approached.
Rain triggered the automatic rain gage at 06.40 bringing 0.9mm by 08.00.
Thursday began very dark with low, thick cloud masking the Marlborough Downs and Savernake Forest limiting visibility to around 600m at its worst. For the first time in several years the humidity at 08.00 read 100%. The arrival of the cloud associated with a weather front meant that the temperature recovered after 04.34 to reach 6.3C at 08.00.
The Atlantic synoptic chart shows a range of weather fronts approaching the UK, so more rain and mist ahead.