Large Data Set

Where are the UK weather stations?

Leuchars, Leeming, Heathrow, Hurn, Camborne

Where are the overseas weather stations?

Jacksonville, Beijing, Perth

Which years does it cover?

1987 and 2015

Which months does it cover?

May to October

What is recorded in the UK weather stations?

• Mean temp

• Total rainfall

• Total sunshine

• Max humidity

• Mean windspeed

• Max gust

• Mean wind direction

• Max gust direction

• Cloud cover

• Pressure

• Visibility

What is recorded in overseas weather stations?

• Mean temp

• Total rainfall

• Mean pressure

• Mean windspeed

Daily mean temp

Degrees celcius

Daily total rainfalll

Millimetres (mm)

Trace/tr is when there is less than 0.05, should be changed to 0 when cleaning

Daily total sunshine

Hours (hrs)

Daily maximum relative humidity

Percentage (%)

Above 95% means mist and fog

Daily mean windspeed

Knots (kn)

1kn = 1.15mph

Also uses Beaufort Scale from 0-12

Daily maximum gust

Knots (kn)

1kn = 1,15mph

Also uses Beaufort Scale from 0-12

Daily mean wind direction

Degrees from true north (if blowing from south this would be 180)

Daily maximum gust direction

Degrees from true north (if blowing from south this would be 180)

Cloud cover

Oktas (0-8 so nine in total)

0 is clear and 8 is overcast

Pressure

Hectopascals (hPa)

1hPa = 100Pa

Visibility

Decametres (Dm)

1Dm = 10m

What does n/a mean?

Data not available - should be removed when cleaning

Which data can be n/a?

• Sunshine

• Windspeed

• Max gust

What happened in October 1987 in the UK?

Great Storm - higher rainfall