There is sir with no saturation neighborhood the earth if it rise, temparature down.
Temparature down zero, the air start saturation and if itis rise, evaporation with saturation is condensation or sublimation in atomasphere dust and make alot of small drip and ice grain.
Small drip is made by condensation.
Small ice is made by We can see cloud which is made alot of small drip and ice that cloud is float in air.

It can existence state loquid by -20degree, so between 0 and -20 degree make mix cloud with small drip and small ice grain.