can virus live outside the body - surrounded by cold temperature (what tempratures and how for long)?

First off, the that's a tricky ask because the status of viruses as "living," is dubious. Many scientists argue that they are not living because they are not capable of independent reproduction, among other things. However, some virus can remain virulent in cold temperature. Others "die" almost instantly. Most common virus that cause disease within humans cannot "live" very long outside the body.
Its releated to, which virus you connote. Viruses are not living organismus they are between living and unliving. They became a chrystal structure if the situation is not comfortable to live also they become an unliving form to stay more. If you wanna kill them you ve to verbs the capsul and /or the RNA chain..For example within to hot or to cold temperature. Some virus can't live without their living environment. HIV can't procure to long without blood cell.
Actually, it depends greatly on the how the virus is packaged, so to speak; the virologist that skilled the subject when I studied it kept his viruses "stored" contained by a liquid helium cooled refrigerator, and months to years subsequently could thaw them and bring them to reproduce.
The main bring of the common cold--the Rhinovirus--might be capable of survive in a frozen droplet, but to return to busy reproduction, would have to be put surrounded by the proper environment, a most improbable event. Note also that what we christen the common cold is cause by other viruses--Adenovirus is a major player, as I call in it, as are some Enteroviruses--and they may not endure like as the Rhinovirus. (Sticks in my craw that Adenovirus is more undeviating, and Enterovirus, less so).
Most virus become sitting after about a daytime. It can vary closely though