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Highest UV level this year

Yesterday produced the highest UV level this year, at the lower end of the ‘Very High’ category. We should expect this as we are within four weeks of the longest day. This morning, at 0800, the humidity level was at its lowest for ten months at 73%. The average for this month is 89%.

What a difference a day makes

In contrast to the previous day, yesterday was dry and brought 12.86 hours of bright sunshine with lighter winds – maximum gust of 17mph. As a result the maximum temperature was 17.9C, only the sixth day this month reaching above the mean for May. With cloud cover increasing overnight there was no found frost, a minimum of 5.6C was the lowest reached.

Another night with ground frost

The daytime maximum temperature yesterday recovered closer to the mean at 15.3C but dropped away overnight to a minimum of 2.3C at 0344 hours giving a ground frost. There was no measurable rainfall although a very slight shower in the afternoon gave a trace of rain. The total hours of bright sunshine was a little higher than the previous day at 5.08 hours and UV levels returned to the ‘High’ category.