Windrush Weather

Author: Eric Gilbert

  • High pressure edges in again from the Atlantic

    Wednesday saw much less sunshine, only 2.82 hours, with the UV level only just in the Very High category. However, the sun is still strong and raised the temperature to a maximum of 24.4C, up 1C on Tuesday and 2.3C above average.

    Every day this month has seen maxima above average but only nine minima above.

    Overnight with mainly clear skies the thermometer fell to a minimum of 10.3C, being 1.4C below average, just after 4am. Recently the minima have been around 05.30 after the sun got up.

    Thursday started with intermittent sunshine and broken cloud that lifted the temperature to 16.7C at 08.00.

    The barometric pressure has been rising slowly over the past three days as a ridge of high pressure edges in from mid-atlantic.

    Update at 20.30: less than two hours of sunshine but temperature rises again, today reaching 25.9C at 14.11.

  • Westerlies and greater cloud cover bring brief respite by day

    Tuesday was the second coolest day this month with a maximum 23.3C, which was down almost 4C on Monday, but still 1C above average due to the westerly breezes and greater cloud cover.

    Another dry day.

    Rainfall 4.6mm but evaporation 78mm of equivalent rainfall

    A milder night followed due to cloud cover with a minimum of 12.1C at 06.10, since recovering to 15.2C at 08.00.

    Wednesday arrived with a mostly cloudy sky and only brief glimpses of sunshine.

    The soil temperature at a depth of 5cm was reading 19.3C at 08.00, the coolest at this time of day for this month.

  • Mean temperature for first half of July 2.6C above average

    Monday brought more cloud and much less sunshine, 4.8 hours, but during that time the UV level was again Very High. No further rain.

    Maximum temperature: 27.1C being 4.9C above average
    UV: 8.3, which was Very High
    Sunshine: 4.81 hours
    Maximum wind gust: 19mph and veering into the west
    Evaporation: 4.03mm of equivalent rainfall
    Minimum temperature: 9.9C, being 1.8C below average
    Ground temperature: at 5cm depth 08.00 today was 20.3C

    Tuesday arrived with broken cloud and intermittent sunshine giving a cooler start to the day with a reading of 16.9C at 08.00

  • Hotter again on Sunday followed by the warmest morning for a year

    Sunday saw the thermometer rise to 27.7C, which was 5.3C above the July average and was held for well over an hour.

    Another 14.92 hours of sunshine was recorded and not surprisingly the UV level was again Very High.

    During the afternoon the wind veered into the north west, a direction from which we have not seen the wind for over a month.

    A much milder night followed with the thermometer falling just below the July average with a minimum of 11.2C

    Initially there was sunshine from dawn but by 08.00 more cloud had arrived temporarily obscuring the sun. However, by 08.00 the temperature had risen to 21.1C, making it the warmest morning since 9th July 2017.

  • Heat returns although change imminent as anticyclone eases away

    Saturday saw the thermometer start to rise again over previous days maxima giving a maximum of 26.2C at 15.04, being 4C above average. The UV level rose back to Very High during the almost 10 hours of strong sunshine.

    A cool night followed with a minimum of 9.6C, which was 2C below average.

    Rainfall this month totals just 4.6mm whereas evaporation totals 66mm of equivalent rainfall.

    Sunday dawned with strong sunshine that gave a temperature of 17.8C at 08.00

    Sunday update at 17.35: maximum temperature of 27.7C at 16.21 and maintained for over an hour.

    Wind veered into the northwest mid-afternoon, a direction not experienced for a while.