What could be a possiable reason my Hyundia want crank in the cold weather, but will crank fine when it's warm weather

Low fuel pressure could be the cause from a weak worn out fuel pump.

How to Start a Car in Freezing Cold Winter Weather

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wikiHowFreezing cold weather can take a toll on car batteries. ... It's much more difficult to start a cold car with a mostly-empty tank, so do yourself a favor and gas up ...

Why is it so hard to start a car in the winter? - HowStuffWorks

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To start a car in winter, your engine has to work extra hard. Learn the top 3 reasons your car is hard to start in cold winter weather.

Debunking 5 Cold-Weather Car Myths - Popular Mechanics

battery when you get cold wether the battery uses more power to crank the car over causing it to get week if its a diesel could be the heaster plugs hope this helps

Reason 1 - Gasoline, like any other liquid, evaporates less when it is cold.You have seen this -- if you pour water onto a hot sidewalk it will evaporate a lot faster than it will from a cooler place like a shady sidewalk. When it gets really cold, gasoline evaporates slowly so it is harder to burn it (the gasoline must be vaporized to burn). Sometimes you will see people spray ether into their engines in cold weather to help them start -- ether evaporates better than gasoline in cold weather.

Reason 2 - Oil gets a lot thicker in cold weather. You probably know that cold pancake syrup or honey from the refrigator is a lot thicker than hot syrup or honey. Oil does the same thing. So when you try to start a cold engine, the engine has to push around the cold, gooey oil and that makes it harder for the engine to spin. In really cold places people must use synthetic motor oils because these oils stay liquid in cold temperatures.

Re ason 3 - Batteries have problems in cold weather, too. A battery is a can full of chemicals that produce electrons The chemical reactions inside of batteries take place more slowly when the battery is cold, so the battery produces fewer electrons. The starter motor therefore has less energy to work with when it tries to start the engine, and this causes the engine to crank slowly.

All three of these problems can make it impossible to start an engine in really cold weather. People either keep their cars in heated garages or use "block heaters" to get around these problems. A block heater is a little electric heater that you plug into the wall to keep the engine warm.
i hope it was convince answers

You could be right, it may not be the battery, but something to consider.
In cold weather the damand on the battery to turn and start the engine is much higher than in warm weather.

Often people buy a replacement battery without knowing what the minimum, "cold cranking amps," rating is for their car. And often there's no sign of any problem. But, when the weather turns cold not having the minimum cold cranking amps is now a problem.

Just as a procautionary measure, you could read the cold cranking amps rating on your battery, and then call any parts store to see what battery is called for as a replacement. This could prove very helpful.

Something else that may be helpful to you.

1. You could check on your battery to see if it is a maintenance free battery.
If it's not maintenance free, you should have the levels in your battery checked. If the levels are low it will prevent the alternator from charging the battery up to its peak level.

I hope this helps.

Have your battery checked for cold cranking amps. Some old batteries will work fine when warm. But in cold weather they don't provide the necessary voltage. If the fuel pump is not getting the required voltage from the cold battery, it will deliver fuel with less than adequate fuel pressure, which would throw a trouble code and if the pressure was real low, the injectors may not fire.

dos your car crank, if it does check fuel pressure
if does have fuel pressure check spark most likely your coil or ignition module but if doesnt crank check to see if you get signal to your remote starter with a test light

Have you check the plugs, cables, cap/rotor ?

One thing you can try since it starts good in warm weather, is to ,on a cold morning, take a hair dryer and warm up the suspect part to warm weather condition. Then try and start the car. If it start ok you have probably found the weak part.

Have you had the battery checked..Cold weather is the worst enemy on a battery. They work fine in summer but cold will get em.