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Old April 3rd 06, 01:23 AM posted to alt.talk.weather
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Default humidity: outdoor vs indoor

Simple question, I think.

I have a humidity monitor at work.

Then monitor on a rainy day can read 33% humidity while the humidity being
reported by weather sources says 89%.
Is this difference appropriate and reasonable?

I assume the difference is because the indoor area is "air conditioned"
artificially.



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Old April 3rd 06, 09:26 AM posted to alt.talk.weather
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Default humidity: outdoor vs indoor


Bryan wrote:
Simple question, I think.

I have a humidity monitor at work.

Then monitor on a rainy day can read 33% humidity while the humidity being
reported by weather sources says 89%.
Is this difference appropriate and reasonable?

I assume the difference is because the indoor area is "air conditioned" artificially.

Quite.

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Old April 5th 06, 11:25 PM posted to alt.talk.weather
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Default humidity: outdoor vs indoor

Bryan wrote:

Simple question, I think.

I have a humidity monitor at work.

Then monitor on a rainy day can read 33% humidity while the humidity being
reported by weather sources says 89%.
Is this difference appropriate and reasonable?

I assume the difference is because the indoor area is "air conditioned"
artificially.


Refrigerated air conditioning de-humidifies -- which is why you see
water running out them.

My Davis says it's currently 21 C, 93% outside (it's raining).
Inside is 26 C, 77% (no air conditioning).

Dew point is the same for both (as you'd expect).

--
John H


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