what is the raise/fall of temprature as the altitude increases.?

Question

Temprature/Dry bulb and wet bulb temprature of tirumala in peak summer

Answer 1

The universal amount is 2 degrees per 1000 ft.
This is refered to as the Normal Lapse rate and continues up to the tropopause (around 18,000 to 35,000 feet normally)
In saturated air..this rate can be around 1.5 C /1000ft
To correct the answer below...When it is raining...you would normally use the SALR..Saturated lapse Rate and it is appx 1.5C/1000ft
Air pressure has nothing to do with lapse rate

Answer 2

Note the this information is just the "average". Their can be many variations with low and high altitude.

On an average, the temperature falls 3 degrees F. Per 1000 feet. This is called the average lapse rate. If their is a low pressure system, (upper level disturbance), the temperature can fall as much as 5 degrees F per 1000 feet. Especially when rain and snow are falling.

Other factors can effect the temperature rate in altitude.

Ridge tops sometimes have warming minimum temps at night than a valley 2000 feet lower. This is caused by cool air sinking.

Snow-depth. An area with no snow a 8000 feet and an area with snow at 11,000 feet can cause the temperature to be almost 20-25 degrees cooler in the 11,000 feet area.

Answer 3

this is what I know about altitude changes with temp.
the higher the altitude the less pressure because of less air the easier it is to boil something unlike when you're below sea level you have to raise the temp so you can get the same result to boil something as in high altitude because for something to boil it has to go against the pressure of air which there is more of above you in a below sea level area

the pressure of air is 760 mm Hg

Answer 4

1000m equals a drop by 1degree C