2. WEATHER
The state of the atmosphere at a
particular place and time as regards
heat, cloudiness, dryness, sunshine,
wind, rain, etc.
3. CLIMATE
• The weather conditions prevailing in an
area in general or over a long period.
• Climate is the long-term pattern of
weather in a particular area
• Climate is a measure of the average
pattern of variation in temperature,
humidity, atmospheric pressure, wind
and other meteorological variables in a
given region over long periods of time.
4. Factors affecting climate in Pakistan
(Rainfall)
• Monsoon rainfall occurs in summer from
the month of June till September in almost
whole Pakistan excluding western
Balochistan, FATA, Chitral and Gilgit–
Baltistan.
• Monsoon rains bring much awaited relief
from the scorching summer heat
• These monsoon rains are quite heavy by
nature and can cause significant flooding,
even severe flooding.
5. WESTERN DEPRESSIONS
• Mostly occur during the winter months
• Causes light to moderate showers in
southern parts of the country while
moderate to heavy showers with heavy
snowfall in the northern parts of the
country.
Thunderstorms
• Most commonly occur in northern
Punjab, Khyber Pakhtunkhwa and Azad
Kashmir.
6. CYCLONES
• Each year before the onset of monsoon
that is 15 April to 15 July and also after
its withdrawal that is 15 September to
15 December, there is always a distinct
possibility of the cyclonic storm to
develop in the Arabian Sea. Cyclones
form in the Arabian sea often results in
strong winds and heavy rainfall in
Pakistan's coastal areas.
• Altitude: Height above sea level also
affects the climate of a region.
7. CLIMATIC REGIONS OF PAKISTAN
1.Arid (Baluchistan Plateau & Thar
Desert)
2. Semi-arid (Upper & lower Indus Plain)
3. Coastal Areas
4. Highlands
8. 1. Arid (Balochistan Plateau &
Thar Desert)
• Extreme hot & dry in summer
• Sibbi & Jacobabad hootest points on
the globe
• Temperature rises upto 52 celcious/
even more
• Winter are moderately cold
9. 2. Semi-arid (Upper & lower Indus
Plain)
• Has a sub-tropical climate
• Summers are extreme hot & winters
moderate
• Temperature reaches its climax in
June
10. 3. Coastal Areas
• Comprises of entire coastline
including Karachi and Makran
• Having maritime climate (moderate
temperature but high level of
humidity)
• May , June, october the hottest
month
• Average temperature is 32 degree
11. 4. Highlands
• Northern & north-western mountain
ranges
• Areas of very high altitude
• Coldest region of the country
• High altitude mountain peaks remain
snow-capped throughout the year
• Winter sustains from 6 to 8 months
12. HOW THE HUMAN ACTIVITIES
AFFECT THE CLIMATE
• Influence of low temp, snow and ice
on life of people in mountains
• Influence of rainstorm on
agriculture, industry and
communication.
• Problems caused by draughts and
shortage of water supply on
agriculture and industry.
