Time - Time of sample (every 3hrs)
Wind - Direction
Speed - Wind speed in knots (multiply x 1.852 to convert to km/h)
Tmp - Temperature at the sample time
DP - Dew Point temperature at the sample time
RH - Relative Humidity at the sample time
Rain - Amount of rainfall recorded since 9:00am in mm (previous day if before 9:00am of current day) or Amount of rain in previous 3 hrs
Pressure - Barometric pressure at the sample time