Large data set

What months are included in the large data set?

May to October

What years are included in the large data set?

1987 and 2015

Which of the months included have 30 days?

June and September

Which city in China is included?

Beijing

Which city in Australia is included?

Perth

Which city in America is included?

Jacksonville

Which UK cities are included?

Camborne, Heathrow, Hurn, Leeming, Leahurst

What are the units and accuracy for daily mean temperature?

Degrees Celsius, 1/10

What does n/a mean?

Not Available

What range of rimes are covered for temperature and rainfall?

24 hours (0900 - 0900)

Range of temperatures at Heathrow

8 - 28.7

Units and accuracy of rainfall

mm, 1/10

What does tr mean

trace, less than 0.05mm (rainfall)

Max rainfall UK

Heathrow 51.6mm 26/08/2015

Max rainfall Worldwide

Perth 102mm 17/05/2015

Units and accuracy of daily total sunshine

Hours, recorded to the nearest tenth of an hour

Max/min hours of sunshine

Heathrow - 15 hours and 0 hours

What is daily maximum relative humidity

percentage of air saturation with water vapour

What does a relative humidity >95% denote

misty and foggy conditions

Units for daily mean wind direction and windspeed

Beaufort

Units for daily max gust

Knots

Maximum wind UK

Leuchars, 23 knots. 06/06/2015

Minimum wind UK

Hurn, 2 knots, 03/10/2015

Maximum wind Worldwide

Perth, 14 knots

Minimum wind Worldwide

Jacksonville, 0.9 knots

What is meant by visibility?

the greatest horizontal distance which an object can be seen in daylight

Units for visibility

Dm (decametres = 10 m)

Units for pressure

hPa = hectopascals

Maximum pressure at Heathrow 2015

1036 Pa

Minimum pressure at Heathrow 2015

989 Pa

What is meant by total cloud

how many eighths of the sky is covered

Units for total cloud

Oktas

Coldest location in the UK

Leuchars 12.2

Warmest location in the UK

Heathrow

Warmest months in the UK

July (C, H, Hu) and August (Lee, Leu)

Warmest Location worldwide

Jacksonville - 24.8

Coldest location outside of the UK

Perth - 15.2

Range of temperatures within the UK

3.8

Range of temperatures worldwide

28.7

What is the difference between temperatures in 1987 and 2015

all have increased

Which are the wettest months for UK cities

July (Leu), August (C, H, Hu) and October (Lee)

What UK cities have experienced an increase in rainfall

Camborne and Hurn

What UK cities have experienced a decrease in rainfall

Heathrow, Leuchars and Leeming

Wettest city in the UK

Camborne, 2.8

Wettest city Worldwide

Jacksonville, 5.9

Driest city in the UK

Heathrow, 1.8

Driest city worldwide (excluding UK)

Beijing, 2.1

Is there a pattern shown for rainfall in the UK

Similar pattern and peak at similar times

Is there a pattern shown for rainfall worldwide

Peaks occur at varied times

Windiest months worldwide

May for all cities except Perth (Sept.) and Jacksonville (Oct.)

kn in mph

'nautical mile per hour'

1kn = 1.15mph

What does the daily maximum gust measure?

highest instantaneous windspeed recorded

0 on a Beaufort Scale

calm, >1kn

1-3 on a Beaufort Scale

light, 1-10kn

4 on a Beaufort Scale

moderate, 11-16kn

5 on a Beaufort Scale

fresh, 17-21kn