I would go with a day/night thing instead. At night, if there are clouds, then heat is not allowed to rise, so dew and frost are not formed on the grass. During the day, if there are clouds, then the sun cannot warm the surface much. I am experiencing such a day right now. From midnight until now, under a cover of clouds, the temp has held steady around 6 degrees. There has been little wind from the south east during most of that time.
Look at how cold a desert like the Sahara,gets at night even though it gets so hot during the day.
The polar regions that have months of night would require clouds to retain heat and are only warmed by wind.
There is also the observation from Canadian Inuit near Rankin Inlet (62° 49.200' N) that they have been able feel the heat of the sun in December and January for the past 7 years. They have had to start to wear sunscreen because of this.
