Under the influence of the high pressure the sun returned in strength on Wednesday logging 11.2 hours. As a result the thermometer rose to 21.2C but this was still 1.6C below average, the 22nd this month.
The UV level was again Very High for almost two hours either side of midday.
Under clear skies overnight the thermometer dropped down to 10.3C, which was 1.6C below average.
Thursday dawned with thin cloud initially reducing the strength of the sun. However, it was sufficient to evaporate the radiation fog that had formed in the River Og valley by 07.30.
Update at 20.00 on Thursday: temperature soared to a maximum of 26.8C at 16.12.