When Is The Coldest Time Of The Day?

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By By KOMO Staff & News Services

- They always say it's darkest before the dawn (which isn't true. Around midnight is technically the darkest, but it's hard to notice). But on most nights, it is the coldest before dawn.

Generally speaking, the coldest part of the day is right before the sun comes up in the morning -- between 4-6 a.m., depending on the season.

During the night, the ground radiates the heat it's absorbed back out into space, allowing the temperature to drop. It actually does this all the time, but it's had the most time to radiate it back to space without the incoming sun's warmth to counteract it right before the sun comes up again to restart the process.

The warmest time of day is usually around 3-5 p.m. As the sun fades toward evening, the radiating process starts to overtake the sun's input.

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