The cold air on Saturday came down from Iceland and the Arctic that meant it was a very cool day after the sharp frost. The thermometer slowly crept up to 4.3C at 14.22, which was 2.8C below the 37-year average and the coldest day this month since 7th (0.4C).
During the late afternoon and evening the thermometer began to fall slowly reaching freezing point (-0.1C) at 20.10 and -2.0C at 22.24. The minimum of -3.3C was reached at 02.49 Sunday morning being 4.7C below the 37-year average. At this time, encroaching cloud from the approaching weather front meant the thermometer began to climb again.
The radar showed the front edge of the weather front approaching the area at 06.30 with the first snow flakes falling a 06.44. At that time the thermometer had edged a little higher to read -0.6C.
The snow ceased falling just before 08.45 and lay at a level depth of 5cm due to the calm conditions. The wind, having backed into the west in the evening, came from the southeast on Sunday morning in calm conditions, the anemometer hardly turning.
The sunshine on Friday amounted to 3.2 hours with the UV a little stronger, briefly reaching 0.8. Earlier this month it had risen to 0.7 and at the beginning of the month 0.6. The thermometer struggled to reach a maximum of 6.7C at 14.26, which was 0.4C below the 37-year average. During the evening and overnight the temperature fell away to give a hard frost with the minimum of -2.4C recorded at 07.57 on Saturday.
The rainfall that started just before 17.00 on Friday amounted to 2.4mm bringing the monthly total to 50.6mm when the 37-year average is 90.5mm
Saturday began with thin high cloud through which weak sunshine appeared. The air movement has changed in direction from southwest on Friday veering into the northwest today but very calm. The flow of cold air is now coming from Iceland and the Arctic.
Tuesday brought us welcome, if limited outshine, totalling 1.2 hours that help to lift the thermometer to a peak of 6.5C being 0.6C below the average in the brisk west-southwest breeze gusting to 25mph peak. It was a dry day.
Overnight the temperature dropped to -0.1 at 01.18 Friday morning, which produced a light air frost that was quite pronounced visually after the many hours of rain during the previous day when everything was saturated.
Friday arrived with much blue sky and the promise of sunshine when the sun rises above the low cloud bank on the eastern horizon. The thermometer at 08.00 had recovered to 0.8C.
Wednesday saw the wind strength increase during the morning but the strongest gust occurred in the evening when a peak gust of 41mph was recorded at 21.35, just before a narrow but intense rain band arrived. Rain was light but almost continuous during the daytime and early evening but at 21.44 heavy rain began to fall for about ten minutes. Immediately after this event the wind dropped to almost calm conditions for a few minutes. The other notable feature was that the thermometer dropped rapidly 4.5C as the wind veered immediately from the south into the west.
The rainfall for the past twenty-four hours amounted to 14.9mm bringing the monthly total to 48.3mm when the 37-year average is 90.5mm. We were fortunate that the areas of continuous heavy rain passed to the north and south of this area. The barometric pressure dropped to a minimum of 978.2mb at 22.15 Wednesday evening.
Thursday arrived with patches of blue sky between the variable high cloud and dry with the thermometer reading 3.8C at 08.00.
Tuesday started calm but the wind began to pick up as the depression approached the country with a maximum gust of 32mph at 14.26. The mild, southwesterly wind meant another warm day with the thermometer again reaching a maximum of 10.6C being 3.5C above average. By 23.00 the temperature had fallen to 10.3C but dropped away a shade overnight to read 9.6C at 08.00 on Wednesday.
Rain arrived overnight and was moderate in strength on Wednesday morning under low, thick cloud adding 8.3mm to the total now standing at 33.4mm well bleep the 37-year average of 90.5mm. However, Storm Christoph is expected to add significantly to the total as the day progresses.