Why Does It Get Colder In Olympia At Night?

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By By Steve Pool

SEATTLE - Those that live in the state capital must wonder why it always seems to get colder there at night on most nights. On clear nights, Olympia might be 4-9 degrees colder than Seattle.

There could be a number of factors in play. First of all, Olympia doesn't have the relatively warm waters of Puget Sound to their west to help insulate them. A second factor could be that large city area (like the Seattle/Tacoma/Everett corridor) generate their own heat from such sources as concrete that hold heat during the day and radiate it out at night. And Olympia is nowhere near as large a city.

Finally, it could be a combination -- that the airport (their official reporting station) is in a rural location away from what heat would be created from the city. It's also south of the city and further away from the Sound. Either way, bundle up!

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