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Grade 7- Elements of Weather

Weather is the daily atmospheric conditions of a place at a particular time.


Elements of Weather

Temperature

Measure or degree of hotness or coldness of a place


Humidity

The amount of water vapour or moisture in the atmosphere


Precipitation

All forms of moisture which fall from the atmosphere to the earth’s surface.


Rainfall

Is a form of precipitation formed from clouds that in form of water droplets


Wind

Moving air on the surface of the earth


Sunshine

Direct rays of sunlight on the surface of the earth


Cloud cover

Mass of tiny droplets of water or ice formed through condensation


Analysis and interpretation of weather conditions

Diurnal/ daily Temperature range

Difference between the maximum and minimum temperature for any one day.


Mean Daily Temperature

Average of the maximum and the minimum daily temperatures.


Mean Monthly Temperature

Sum of mean daily temperatures in a month divided by the number of days in that month.


Mean Monthly minimum Temperature

Sum of daily minimum temperatures divided by the number of days in that month.


Mean Monthly Maximum Temperature

Sum of daily maximum temperatures divided by the number of days in that month.


Mean Annual Temperature

Sum of mean monthly temperatures divided by 12.


Mean Annual Temperature Range

Difference between the highest and the lowest mean monthly temperatures in a year.


Monthly Rainfall Total

Sum of rainfall recorded in a month.


Annual Rainfall Total

Sum of monthly rainfall totals for 12 months.


Mean Monthly Rainfall

Sum of rainfall totals for a particular month over several years divided by the number of the years of observation.


Mean Annual Rainfall

Sum of mean monthly rainfall for 12 months of the year.

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