Daily ... in degrees C- this is the average of the hourly ... readings during a 24 hour period
Mean Temperature
1 of 10
Daily total ... including solid precipitation such as snow and hail, which is melted before being included in any measurements- amounts less than 0.05mm are recorded as 'tr' or 'trace'
Rainfall
2 of 10
Daily total ... recorded to the nearest tenth of an hour
Sunshine
3 of 10
Daily mean ... and ... in knots, averaged over 24 hours from midnight to midnight. Mean ... are given as bearings and as cardinal (compass) directions. The data for mean ... is also categorised according to the Beaufort Scale
Wind direction speed
4 of 10
Daily ... in knots- this is the highest instantaneous windspeed recorded. The direction from which the ... was blowing is also recorded
Maximum gust
5 of 10
Daily maximum ..., given as a percentage of air saturation with water vapour. ... above 95% give rise to misty and foggy conditions
Relative Humidity
6 of 10
A ... (kn) is a nautical mile per hour
Knot
7 of 10
Daily ... measured in 'oktas' or eighths of the sky covered by ...
Mean Cloud Cover
8 of 10
Daily ... measured in hectopascals (hPa)
Mean Pressure
9 of 10
Daily ... measured in decametres (Dm). This is the greatest horizontal distance at which an object can be seen in daylight
Mean Visibility
10 of 10
Other cards in this set
Card 2
Front
Daily total ... including solid precipitation such as snow and hail, which is melted before being included in any measurements- amounts less than 0.05mm are recorded as 'tr' or 'trace'
Back
Rainfall
Card 3
Front
Daily total ... recorded to the nearest tenth of an hour
Back
Card 4
Front
Daily mean ... and ... in knots, averaged over 24 hours from midnight to midnight. Mean ... are given as bearings and as cardinal (compass) directions. The data for mean ... is also categorised according to the Beaufort Scale
Back
Card 5
Front
Daily ... in knots- this is the highest instantaneous windspeed recorded. The direction from which the ... was blowing is also recorded
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