With little sunshine and occasional showers or drizzle yesterday was the coolest day since 3rd June with a maximum of 15.8C, which is 3C below the average for September. The overcast conditions, with low cloud, greeted the dawn with very moist air after the rainfall of 2.7mm yesterday.
It was a mild night when the thermometer did not drop below 11.6C and recovered to 14.1C at 08.00.
The 5.5 hours of strong sunshine yesterday pushed the thermometer to a maximum of 17.2C, a little below the average but the temperature dropped away overnight to a chilly minimum 8.6C at 03.22. A very brief shower of just 0.1mm was recorded around dawn this morning from the predominantly cloudy sky, the temperature having recovered to 9.6C at 08.00.
Another dry day yesterday with reduced strong sunshine of 3.76 hours, which fell away as cloud drifted in mid-afternoon. However, the mild southerly air pushed the thermometer to a maximum of 20.9C, which is 2C above the average. It was a very mild night with a minimum of 17C until just before 3pm when a cold front arrived from the west bringing heavy rain amounting to 10.2mm. As the front moved away the wind veered from the south to a more westerly direction, the rain ceased and the temperature dropped to 12.7C at 08.00
Yesterday gave us another warm and sunny day with 7.33 hours of strong sunshine. The thermometer dropped steadily after dark, from a maximum of 18.8C, to a minimum of 10C before midnight but then began a steady recovery to 14.3C at 08.00. This was due to the warm, moist southerly air. It was also noticeable that in contrast to previous nights, when the wind dropped out completely, that there was a light breeze throughout the night.
With pressure rising yesterday, at the highest this month at 08.00 today of 1024.4mb, it was not surprising that the sun returned yesterday with 6.67 hours of strong sunshine and a maximum of 18.7C, average for September. Clear skies overnight meant that the thermometer tumbled to the second lowest reading this month of 6.4C at 04.26. This meant that it was the coldest September morning of this year with a reading of 7.9C at 08.00.
Strong sunshine was evident from dawn today.