The phrase "actual cold" is correct and usable in written English.
It can be used to describe a state of being genuinely cold, often in contrast to perceived or expected coldness.
Example: "After spending hours in the snow, I finally experienced the actual cold that I had only read about in books."
Alternatives: "real cold" or "true cold".
Not by the N.S.A. (well, maybe, but I wouldn't know) but by an actual cold bug.
("Many observers" is apparently how the kids today describe people who don't know what happened in the actual Cold War).
Whatever that jolly crew of madcaps and bon vivants was fighting, it did not resemble the actual cold war, and I think it's safe to say that the clandestine derring-do performed by the earnest and muscular young protagonists of "Alias," "24," "MI-5" and "Threat Matrix" is just about as fanciful.
The results can be explained by the fact that a great majority of hot water usages occur during peak periods when variations of actual cold water temperature are rather small (within ± 1°C, in shaded areas of Figure 14).
Although, more work is needed before an actual cold neutron source can be designed and built, the purpose of this preliminary study is to investigate the effects of liquid hydrogen and the thickness of a beryllium filter on the cold neutron flux generated.
Now that hot drink is more convenient than ever, and it comes with actual cold medicine.
In fact the group wasn't large enough to make a statistically significant prediction about actual colds; but he was able to predict which subjects showed a pattern of biological activity of the kind associated with the symptoms of a cold.
An actual spy, cold by birth and cruel by necessity, rather than a wiggly eyebrow Sellotaped to a cassette tape of crap puns.
In order to match the direction of Buoyancy force as it exists in actual engines, colder air was passed during the transient experiment.
Thus the actual exposure to cold temperatures could be greatly increased by having the cold days occur in succession.
A real wind came blowing clearly, without pretense or laughter, from the cold actual sea, and spread its layers of knives across the empty stage.
