Large Data Set

  • daily mean temperature - celcius, decimals

  • daily total rainfall - mm, decimals

  • daily total sunshine, decimals (hours and tenths unit of bright sunshine)

  • daily mean wind direction and windspeed knots - Beaufort scale(calm, light, moderate, fresh), wind direction - rounded to 10 degree

  • daily maximum gust - knots, highest instantaneous windspeed recorded

  • daily maximum relative humidity - percentage, above 95% means misty and foggy conditions

  • daily mean cloud cover - oktas, 0-8

  • Daily mean visibility - decametres, greatest horizontal distance which object can be seen in daylight

  • daily mean pressure - hectopascals

  • for overseas, only

    • daily mean temperature

    • daily total rainfall

    • daily mean pressure

    • daily mean windspeed

  • n/a - not available

  • tr - trace, for rainfall, less than 0.5 mm

  • coast cities

    • Perth

    • Jacksonville

    • Leuchars

    • Camborne

    • Hurn

  • Leuchars, Leeming, Heathrow, Hurn, Camborne - north to south

  • Jacksonville, Beijing, Perth (the only one in southern hemisphere)

  • Months between May and October, time between 9am to 9pm