Looking on the internet deeply has found these results:

It is slightly colder is the most popular phrase on the web.

It is slightly getting colder 10 results on the web	It is slightly colder 1173 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	... and isn't substantially colder than STL, although it is slightly colder. Omaha and Des Moines I would generally agree might be considered too�... Jul 14, 2015 ... MrAnarchy. Climate change, can cause that. Doesn't mean that the globe is not warming just because it is slightly colder where you live. Apr 20, 2015 ... The radiation passing through the empty space does not get the boost and the energy, therefore it is slightly colder... if you believe in that sort of�... It is simply that it is slightly colder than the ambient air due to latent heat capabilities of clay / ceramic. There is a reason that crock pots, for instance are made of�...

It is slightly getting colder

10 results on the web

It is slightly colder

1173 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

... and isn't substantially colder than STL, although it is slightly colder. Omaha and Des Moines I would generally agree might be considered too�...
Jul 14, 2015 ... MrAnarchy. Climate change, can cause that. Doesn't mean that the globe is not warming just because it is slightly colder where you live.
Apr 20, 2015 ... The radiation passing through the empty space does not get the boost and the energy, therefore it is slightly colder... if you believe in that sort of�...
It is simply that it is slightly colder than the ambient air due to latent heat capabilities of clay / ceramic. There is a reason that crock pots, for instance are made of�...