Windrush Weather

Author: Eric Gilbert

  • No change in settled conditions

    There was very little change on Saturday from the previous five days. The thermometer peaked at 20.6C being 3.5C above the average and a minimum of 5.9C was 0.9C below the average.

    Strong sunshine greeted the arrival of Sunday that boosted the temperature considerably so that by 08.00 the thermometer read 14.8C, the warmest start to a day this month.

    The soil temperature at a depth of 5cm read 16.0C at 08.00, the warmest the soil has been at that time since 13th September.

  • Wall to wall sunshine on Friday

    The Azores High reached its highest pressure, maximum of 1032.4mb, on Friday bringing the settled, sunny but cool northeasterly breeze. The breeze remained brisk all day with a peak gust of 21mph at 11.47.The thermometer reached a peak of 20.3C, being 3.2C abject the average. The past night was the coolest for a week with a low of 6.1C at 04.53 early on Saturday.

    So far this month, the past twelve consecutive dry days have been the driest period since February

    In the early hours cloud rolled in from the North Sea so Saturday dawned dull and gloomy. However, just before 08.00 some brightness was observed and just after 08.15 bursts of weak sunshine pierced the thinning cloud cover. Due to the overnight low cloud the humidity at 08.00 was 92%, the highest for a fortnight, after the low of 76% on Tuesday.

  • High pressure builds as evaporation increases

    Thursday was another very sunny and dry day that saw the equivalent loss of 4mm of rainfall through evaporation from ground sources and plant life. The equivalent loss of rainfall this month now amounts to 75.3mm when the rainfall has been 52.7mm.

    The northeasterly wind persisted, and was a little stronger with a maximum gust of 20mph, that limited the temperature rise to 19.4C, but this was still 2.3C above the average.

    The overnight minimum of 6.8C was exactly average with that occurring at 05.12 early Friday.

    Friday arrived with strong sunshine after sunrise with the wind veering a few degrees to come from the east-northeast.

    The high pressure has been intensifying over the past two days with a pressure reading of 1032.3mb at 08.00 and continuing to rise. This is the highest barometric pressure since 2nd March.

  • Evaporation now exceeds monthly rainfall total

    During the strong sunshine on Wednesday the thermometer rose to 21.2C, making it the second warmest day this month and 4.0C above the 39-year average.

    It was another dry day, we have now enjoyed ten continuous days without rainfall thanks to the Azores High. The rainfall May rainfall total to date is 52.7mm. Thanks to the dry days, drying wind and sunshine, the equivalent loss of rainfall through evaporation from ground sources and plant life now exceeds the monthly rainfall with 60mm disappearing into the atmosphere and continues at a rate of over 3mm per day.

    The oats night was the mildest for over a week with a low of 8.7C being 1.9C above the average.

    Thursday began well with brightness and briefly weak sunshine but at 07.15 the bank of cloud in the east had rolled over our area. The barometric pressure has intensified slightly with a pressure of 1029.6mb at 08.00. The temperature at 08.00 was 11.6C.

  • Highest UV level on Tuesday for ten months.

    The UV level on Tuesday rose to its highest since 24th July and peaked at ‘Very High’. This was surprising in the strong sunshine as we are only a month from the longest day. The breeze from predominantly north, combined with reduced sunshine hours, gave us a slightly cooler day than of late but the maximum of 18.7C, late in the afternoon at 17.47, was still +1.6C.

    The low of 4.9C in the early hours of Wednesday at 04.52 was 1.9C below the 39-year average.

    Intermittent sunshine through variable cloud greeted Wednesday morning and rapidly raised the temperature to 13.9C at 08.00. The Azores High is still driving our weather with the barometric pressure remaining stable reading 1027.4mb at 08.00. The soil temperature at a depth of 5cm, read at 08.00, registered 15.0C, the highest since 9th September.