Why is it so FREAKING COLD in airplanes?
364080
Sit in an isle seat it is less drafty. small windows are stronger than big windows. At altitude the cabin is pressured and the windows need to be strong.
205775
Come on!  Dry Ice!\n\nTemperatures below -78 degrees Farenheit\n\nAnd your planet is Mars, but its water AND carbon dioxide in the polar caps....
773660
Because the hand you touch it with is colder than the foot you touch at that moment.
441428
In modern jets the air is taken from after several stages of compression at this point the air is relatively hot and can be allowed to cool through a small radiator before being depressurized.  The resulting depressurized air will be significantly cooler because it had lost energy when there was a heat differential between atmosphere and its pressurized state. This is why the air conditioning in an airplane needs assistance from a ground until the engines are operating.
438824
Where jets fly the atmosphere is very cold and the water vapor from the jets exhaust condenses and freezes into ice crystals.  THat is why you see the contrail, 0r condensation trail.
764905
the temperature of space is pretty close to zero Kelvin (-273 C)\n\nthat is due to the lack of substance to create energy.\n\nHeat, or lack of heat, is transferred by substances like air or water or metal.  No air = no transfer of cold or heat from space to the ship.  The ship's outer hull actually is hot where the sun shines on it and very cold on the shady side.  It's just really well insulated.\n\nIf spaceships were in -273 C air, then it would freeze solid (mostly because the air would freeze too)
155061
The temperature must drop below freezing up in the atmosphere,  where there is a concentration of water vapor. Typically this is caused when a warm front (full of water) rolls over a cold front -- the drop in temperature condenses the water high up and it drops to the ground as snow. But it can also happen when a cold front moves over a lake (ie. lake-effect snow). This is seen in a place like Buffalo.
115550
around -50 celsius like in siberia the threads of your boots snap and spit freezes before it hits the ground like a pellet
377472
yep i got back from a holiday in the carribean and florida in january, i flew into stanstard airport (london) and it was grey wet (really wet) and cold and jsut damn miserable :(
591984
It gets colder as you go up through the troposphere because the air is "thinner".\n\nThere is less atmosphere here due to less gravity.\n\nB/c there is less air, there will be less heat. Air is an insulator that holds heat. Less air = less heat.\n\n:)
71035
Not 100% sure. But I think its because the air inside isn't moving. The air inside is stationary, while it is continuously circulating outside, which causes changes in the temperature. IMHO
952732
It's far from the sun and it's a "dead" world - there are no internal processes that generate heat.  So nothing to warm it up means it's freezing cold.
41807
Cold temperatures- like that of ice- slow down molecules and keep them closer together.  Higher temperatures- like that of gases- speed up molecules and let them get lose and fly wherever they want.
501303
No airplane, no matter how well built, is entirely air tight.  A bit of air leaks out slowly through many points and therefore the plane needs a mechanism to keep the pressure up so we can breathe inside.  \n\nThe air pressure inside the airplane is generated by a compressor.  As airplanes get older, the compressors don't work as well and thus take time to adujst the pressure in the cabin, and thus why you can feel the difference in your ears.
214499
It all has to do with altitude. The higher you are from the earth, the colder it gets. Air is also thinner.
1031939
temperature decreases with increase in altitude
219472
Because cold air has a tendency to sink !!!