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View Poll Results: If the temperature outside is over 80F/27C, what dew point range do you prefer?
0-20F 22 9.32%
20-30F 17 7.20%
30-40F 24 10.17%
40-50F 68 28.81%
50-60F 45 19.07%
60F-70F 37 15.68%
70F+ 23 9.75%
Voters: 236. You may not vote on this poll

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Old 06-25-2013, 06:18 AM
 
Location: Cloudston, Derbyshire, England
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Dewpoint's 11 today. Wish it was 17 with a temp of 24 or so.
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Old 06-25-2013, 06:22 AM
 
Location: SWCT, close to coast
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Quote:
Originally Posted by Weatherfan7 View Post
Dewpoint's 11 today. Wish it was 17 with a temp of 24 or so.
51F dew with 75F outside. My heart just melted. I'm very curious how many times I get close to that in the summer here. Even if we do, it feels like its for 3 days a month only.
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Old 06-25-2013, 06:54 AM
 
Location: Western Massachusetts
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Quote:
Originally Posted by Cambium View Post
51F dew with 75F outside. My heart just melted. I'm very curious how many times I get close to that in the summer here. Even if we do, it feels like its for 3 days a month only.
Odd. 67F dew with 67F outside here.
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Old 06-25-2013, 06:59 AM
 
Location: SWCT, close to coast
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Quote:
Originally Posted by nei View Post
67F dew with 67F outside here.
69F dew with 72F outside here.
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Old 06-25-2013, 08:57 AM
 
Location: SWCT, close to coast
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Dewpoints and Surface pressure

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Old 06-25-2013, 09:06 AM
 
Location: USA East Coast
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No doubt feeling like the Caribbean today in the Gulf and Atlantic states.

I always thought one of the most important aspects of dew points in the USA is how seasonal they are – even in the Gulf and Atlantic states where they are the highest in summer. Also, unlike in real tropical countries where the dew point is high all year, true tropical style dew points (70 F and above) are fleeting, even in Florida, the most tropical state.

The graph on the first page shows that dew points from 50 to 60 are considered comfortable for most people. If you look at the monthly dew points in the USA - for 7 months of the year (October through April) nowhere outside of Florida has dew points above 60 F. Even in Florida, from October through May (8 months), true tropical style dew points of 70 F are not to be found -it’s only in the months of June through September than dew points reach 70 F or higher in Florida.
I thought this set of maps showed this and was rather interesting:

http://docs.lib.noaa.gov/rescue/mwr/...93-02-0113.pdf
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Old 06-25-2013, 09:07 AM
 
Location: Turku, Finland
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We've only had dry heat so far. But wait until July and August.

I enjoy both. A low DP is nice sometimes, but I also enjoy muggy weather. This is all relative, as heat here is rare, and we are always relatively humid. The 24h avg humidity in summer is around 65-70% and I think it's quite comfortable.

Winters are always extremely humid, constantly in the 90% range, and that I don't find comfortable. Especially combined with the breeze from the sea.

The conditions right now are: 79F and the DP is 54F. It's really nice.
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Old 06-25-2013, 10:14 AM
 
Location: Laurentia
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When it's 80F or higher I prefer relative humidity in the 20-30% range, which would yield dew points of 30-40F. That's what I picked in the poll. If it's going to be hot, bring on the dry heat.

Quote:
Originally Posted by wavehunter007 View Post
If you look at the monthly dew points in the USA - for 7 months of the year (October through April) nowhere outside of Florida has dew points above 60 F. Even in Florida, from October through May (8 months), true tropical style dew points of 70 F are not to be found -its only in the months of June through September than dew points reach 70 F or higher in Florida.
Actually, dew points do reach 60F in most of the U.S. on an almost year-round basis, it's just that dews don't average >60F for most of the year.

A good example would be most winters in Memphis - even in December 2010 (a much colder than normal month) the dew point reached 64F near the end of the month. The average dew point for the month was 28F. So what I'm saying is that the dry-looking average masks the bouts of high dew points that occur even in winter, albeit with low to moderate humidity being the dominant pattern. This even occurs as far north as Chicago (December 2010 there), albeit less frequently and topping out in the 50's versus the 60's. A more muted version of this occurs in Tampa as well, where December 2012 topped out at 70F but averaged 54F.
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Old 06-25-2013, 10:24 AM
 
Location: USA East Coast
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Quote:
Originally Posted by Patricius Maximus View Post
When it's 80F or higher I prefer relative humidity in the 20-30% range, which would yield dew points of 30-40F. That's what I picked in the poll. If it's going to be hot, bring on the dry heat.



Actually, dew points do reach 60F in most of the U.S. on an almost year-round basis, it's just that dews don't average >60F for most of the year.

A good example would be most winters in Memphis - even in December 2010 (a much colder than normal month) the dew point reached 64F near the end of the month. The average dew point for the month was 28F. So what I'm saying is that the dry-looking average masks the bouts of high dew points that occur even in winter, albeit with low to moderate humidity being the dominant pattern. This even occurs as far north as Chicago (December 2010 there), albeit less frequently and topping out in the 50's versus the 60's. A more muted version of this occurs in Tampa as well, where December 2012 topped out at 70F but averaged 54F.
True, there are day/bouts when we see higher/lower dew points in the USA all year.

My point was more than the USA is not a tropical country - while we average tropical style dew points (above 70) in the summer months - most of the rest of the year, and for much of the USA, has average dew points from 40 to 60. I would guess that in a place like Vietnam or India that would not be the case.
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Old 06-25-2013, 01:22 PM
 
Location: SWCT, close to coast
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How about a look at some very dry dew points with hot temps in Texas, Kansas, Nebraska today.

Man I wish this area had these numbers.

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