Author: Eric Gilbert

Yesterday was a day to put back on a jumper as the thermometer struggled to reach 15.8C late in the day, at 17.08, which was 4C below the June average. The mitigating factor was the low wind speed with the maximum gust all day of just 10mph. No sunshine was recorded, the second consecutive sunless day and the last time this occurred was in mid-May.

The UV level did rise from the abysmal ‘Low’ level of the previous day, just making it into the ‘High’ category for a brief instant at lunchtime.

With no rain again the total for June stands at 34.4mm, which is 21mmm short of the average for June.

The cloud cover meant anther mild night wth a minimum of 12.0C, some 2.3C above the average for June

The first effects of the high pressure off to the west of the country are seen this morning as the barometric pressure has been rising resulting in very welcome intermittent sunshine a couple of hours after dawn.

With data for the last day of the month still to be recorded, it looks as if it will have been a very warm month with the average approaching 2C above average.

What a dismal day yesterday was.

It was the lowest UV level (2.9), the lowest evaporation (0.72mm) and lowest solar energy since 17th May. Not summer!

As a consequence of the thick cloud and modest breeze from the north east the maximum was only 15.6C, which was 4C blew the average for June and 17C below the peak exactly a week ago.

Overnight the thermometer fell to 10.5C, just above average for June.

This morning is grey with thick cloud and very little wind.

Over the past thirty three years I have frequently observed that summer storms move northwards to the west or east of us. Not far to the east of Marlborough, west Hampshire, received in excess of 60mm of rainfall in the recent storms with Westonbirt Arboretum receiving 36mm. From experience driving down and back from Cornwall, yesterday, there were copious amounts of rainfall to the west of us, from the same weather system. This does not apply to weather fronts that move in from the Atlantic.

With two days to go before the end of the month there is currently a deficit in the rainfall total, compared to the average, of 21mm.

A virtually sunless day yesterday but still above average maximum of 20.7C (+1C). In the early evening the first spots of rain fell with heavier showers late evening. The total rainfall was 3.3mm, making it the second wettest day this month but still only brings the total for June to 62% of the 33-year average.

Gardeners and farmers will be disappointed at this little rainfall as it only dampens the top 1cm of soil.

This morning has dawned with very low cloud giving misty conditions and visibility down to 800 metres. Humidity at 08.00 was 98%, the highest this month. It was a mild night with the thermometer only dropping to 13.9C (+4C) and light winds.

The temperatures recovered yesterday due to a drying easterly wind that has not been seen for a month. There were 4.22 hours of strong sunshine that boosted the temperature to a maximum of 23.0C, which was 3C above the average, at 15.01. More cloud in the afternoon restricted the thermometer from rising further.

At times the anemometer fell still during the daytime and evening yesterday with a maximum gust of 11mph.

Another dry day with the total rainfall standing at 31.1mm and the evaporation from ground sources ad plant life now three times the rainfall at 91mm. Rain is forecast later today and tomorrow so the gardens might have some relief.

It was a very mild night with a minimum of 13.3C that had recovered to 16.3C at 08.00 with still movement of air from an eagerly direction.

The humidity at 08.00 was 69%, the lowest at this time of day since 1st July 2015 when 62% was recorded.

Yesterday:
Maximum down to 19.8C, which is average for June and the coolest day since 12th June
Sunshine of 50 minutes which was slightly up on the previous day but minimal compared to the multiple hours of last week.
Rainfall of 0.3mm – there was a shower at midday that lasted for just a few minutes.
UV of 9.7 – again in the ‘Very High’ category

Today:
Minimum of 9.3C at 05.37 – this was the coolest night since 14th June and 0.4C below average

Strong sun at dawn but by 06.30 cloud had drifted across giving broken sunshine. The thermometer had risen to 13.8C at 08.00