This cycle continues on a daily basis but cloud cover, warm fronts and cold fronts can always interfere with this process resulting in unsettled weather. Since the mixing doesn't start the moment the sun pops over the horizon the coldest temperature readings often occur near or even sometimes slightly after sunrise. Edit Close. Toggle navigation. Sign Up Log In.
Dashboard Logout. Since thermometers are placed about five feet above the ground, it will show a warmer temperature than the air touching the ground. Once the sun comes up, the sunlight excites the cold air in the first foot or so above the ground which can be 10 or more degrees colder , which causes it to move around and mix into the next several feet of air.
Jeff Roseborough said:. August 22, at am. I was taught it science it was because it takes time for warmth from the sun to reach the earth. There is a delay in warming and cooling. This also occurs with seasons. Same with the wintertime. Like Like.
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