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Old 04-21-2014, 10:56 AM
 
Location: East coast
613 posts, read 1,169,172 times
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I know it's less humid and more dry in the winter, but parts of northern Florida seem to have an unusually large diurnal range.

Jacksonville, Florida - Wikipedia, the free encyclopedia
Tallahassee, Florida - Wikipedia, the free encyclopedia

These places seem odd in not only having diurnal ranges in winter greater than those climates further north than them on the east coast, but even compared to those more arid than them too. It seems these cities on the supposedly humid "east" can have diurnal ranges closer to western climates.

Florida, though having a distinct dry season, is still not arid or anything, so how can it have diurnal ranges equivalent to that of Denver or Phoenix?

Anyone know why?
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Old 04-21-2014, 11:16 AM
 
Location: Broward County, FL
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I would venture to guess because North FL has sandy soils? Sandy soils normally cool off and heat up really fast.
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Old 04-21-2014, 12:46 PM
 
Location: Near the Coast SWCT
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Soil Type. Wind. Solar heating during the day. Cloud cover. Humid areas. Elevation all play a role. Have to see what is influenced at the locations you mentioned. Each location will have their reasoning.

For Northern Florida I will assume latitude plays a role with the sun being warmer and because of the SouthEast ridge which pumps south winds during the day, then as the sun goes down the heat radiates back to space and the air cools off with the heat source not in the sky.

And depends what one calls "large" diurnal range.

Would you consider New Orleans to be?



How about Boise Idaho?

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Old 04-21-2014, 01:14 PM
 
Location: Top of the South, NZ
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I think greater deviation in winter minimums would be the main reason.

Do those places have climates in which the typical winter day has a diurnal range close close to the monthly averages? Or does it have large deviations from the average minimum?

Where I live, the diurnal range is nearly 12C/24F, yet it's rare for winter minimums to be more than 5C/10F colder than the average minimum (maybe once a winter) I'm guessing those cities see much greater deviation than that?
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Old 04-21-2014, 01:17 PM
 
Location: Vernon, British Columbia
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That's amazing. Diurnal range should be twice as high in the summer than the winter, not the other way around (at least that's the way it is here... no wait, it's triple in the summer).
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Old 04-21-2014, 06:51 PM
 
Location: Sydney, Australia
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The East Coast and the South aren't very subtropical. And there is a thread about that.

The eastern half of the US is very continental influenced. It won't be that warm - Even Miami has gotten that cold...
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