Dew point vs. humidity

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I've seen a couple of posts that refer to this distinction and I kinda thought I understood it but then the next day, I wouldn't be able to recall what I thought I understood. Ever have that happen to you?

Anyway, Msgiblet was the first one I saw make reference to the dew point as opposed to humidity and I've been curious about it ever since. Turns out that dew point is a much better gauge than relative humidity to determine what your hair will be doing.

This site:
http://www.wmur.com/askthemeteorolog...93/detail.html
offers a decent explanation and if you can get through the excessive exclamation points and random typos, you will come away with a good grasp of the difference between these two labels.

This site is probably even better:
http://www.jonathan-owens.com/2008/0...y-round-1.html


And now I am on a search for a Web site that will give provide an "at a glance" dew point reading every day. If anybody finds a good one, please post it here. Thanks!
3a and strictly CG since August 2007. Porous and on the fine side. No to magnesium sulfate and glycerin. Yes to protein! Favorites:
CO-WASHES: Suave Coconut
CONDITIONERS and LEAVE-INS: Mop Top Daily Conditioner, KBB Nectar, Aubrey GPB or Island Naturals, Robert Craig, Any Jessicurl
CURL ENHANCERS/CREMES/MOUSSES: KCCC, JoiWhip
GELS: Fuzzy Duck, B5 Design, MGA Scultping, BRHG


Fotki password: chuckle
Blog: http://jillipoo.blogspot.com/
Twitter: nopoojillipoo

Last edited by jillipoo; 04-23-2008 at 11:27 PM.
I am all about the dew point.

If it is a cool rainy day, it can be 100% humidity and my hair won't be negatively affected. The dew point is lower.

But, if it is hot and humid it is different. Things are hard to control when dew points get in the mid 60s and about impossible for me if the dewpoint is over 70. At that point it is pretty miserable and I prefer to wear updos, so frizz is a little less of a factor.

ETA: I think I saw that first site last summer, which refreshed my basic meteorology training back in Jr High. That's what got me starting to look at dew point and hair.

That is why I don't rely on relative humidity at all. It really tells me nothing hair wise.
Kiva! Microfinance works.

Med/Coarse, porous curly.

Last edited by redcelticcurls; 04-24-2008 at 12:10 AM. Reason: adding on
Found the one I used last summer.

It is regional, but should be close enough for those in the US.

dew point map
Kiva! Microfinance works.

Med/Coarse, porous curly.
Found the one I used last summer.

It is regional, but should be close enough for those in the US.

dew point map
Originally Posted by redcelticcurls
Perfect. It is now in my bookmarks. Thanks, redcelticcurls!
3a and strictly CG since August 2007. Porous and on the fine side. No to magnesium sulfate and glycerin. Yes to protein! Favorites:
CO-WASHES: Suave Coconut
CONDITIONERS and LEAVE-INS: Mop Top Daily Conditioner, KBB Nectar, Aubrey GPB or Island Naturals, Robert Craig, Any Jessicurl
CURL ENHANCERS/CREMES/MOUSSES: KCCC, JoiWhip
GELS: Fuzzy Duck, B5 Design, MGA Scultping, BRHG


Fotki password: chuckle
Blog: http://jillipoo.blogspot.com/
Twitter: nopoojillipoo
You're welcome, and thank you for posting your links.

I tried to explain the dew point thing last summer, but I rambled too much. Your links work much better!
Kiva! Microfinance works.

Med/Coarse, porous curly.
Cool! I get it now! So much more helpful tha rel hum! Thanks for posting
2c/3a - Miii - Coarse - Low porosity I think

CG since 02/08

low-poo, 20/80 honey and JC TS, ACV rinse, honey and TW

http://public.fotki.com/micol124/going-cg/
Thank you! I remember the conversation earlier, but couldn't wrap my brain around it. Now it makes sense!
2B...ish
http://public.fotki.com/SunshineGrrl/ pw: drama
Products
This area is under construction as my hair type changed and nothing works well for me. I shampoo, I condition and pretty much have done nothing but chuck my hair in a messy bun for the past oh...year? Yeah, I'm that lazy.

No...going no-poo or CG does not work for me. It leaves me overconditioned and oily in a second no matter what I use, so that's not what's not working.
I've seen a couple of posts that refer to this distinction and I kinda thought I understood it but then the next day, I wouldn't be able to recall what I thought I understood. Ever have that happen to you?

Anyway, Msgiblet was the first one I saw make reference to the dew point as opposed to humidity and I've been curious about it ever since. Turns out that dew point is a much better gauge than relative humidity to determine what your hair will be doing.

This site:
http://www.wmur.com/askthemeteorolog...93/detail.html
offers a decent explanation and if you can get through the excessive exclamation points and random typos, you will come away with a good grasp of the difference between these two labels.

This site is probably even better:
http://www.jonathan-owens.com/2008/0...y-round-1.html


And now I am on a search for a Web site that will give provide an "at a glance" dew point reading every day. If anybody finds a good one, please post it here. Thanks!
Originally Posted by jillipoo
www.weather.com -- type in your zip code and it will list all of that information. Also, you can watch Local on the 8's on the Weather Channel -- of course, I don't know what channel that is for you. But if you catch it at the very beginning, the first screen gives you all the info. I watch this every morning.
http://public.fotki.com/msgiblet/ - pw: gibber -- Pics Added 7/10/11
Fine, Thick, Normal Porosity, Normal Elasticity

Countess Balashi of Divi Beach in the Order of the Curly Crusaders

If I'm Going To Have A Bad Hair Day, It Might As Well Be In Aruba!

I am all about the dew point.

If it is a cool rainy day, it can be 100% humidity and my hair won't be negatively affected. The dew point is lower.

But, if it is hot and humid it is different. Things are hard to control when dew points get in the mid 60s and about impossible for me if the dewpoint is over 70. At that point it is pretty miserable and I prefer to wear updos, so frizz is a little less of a factor.

ETA: I think I saw that first site last summer, which refreshed my basic meteorology training back in Jr High. That's what got me starting to look at dew point and hair.

That is why I don't rely on relative humidity at all. It really tells me nothing hair wise.
Originally Posted by redcelticcurls
ITA!! I have to know what the dew point is!! That's the first thing I look for every morning. Ours is in the 50's today and my hair is SO happy!
http://public.fotki.com/msgiblet/ - pw: gibber -- Pics Added 7/10/11
Fine, Thick, Normal Porosity, Normal Elasticity

Countess Balashi of Divi Beach in the Order of the Curly Crusaders

If I'm Going To Have A Bad Hair Day, It Might As Well Be In Aruba!

Well this thread is enlightning. Our dew point today is 67. Lovely. No wonder my hair looks like garbage. I was blaming it on Biotera. Poor gel gets all the blame.
I've seen a couple of posts that refer to this distinction and I kinda thought I understood it but then the next day, I wouldn't be able to recall what I thought I understood. Ever have that happen to you?

Anyway, Msgiblet was the first one I saw make reference to the dew point as opposed to humidity and I've been curious about it ever since. Turns out that dew point is a much better gauge than relative humidity to determine what your hair will be doing.

This site:
http://www.wmur.com/askthemeteorolog...93/detail.html
offers a decent explanation and if you can get through the excessive exclamation points and random typos, you will come away with a good grasp of the difference between these two labels.

This site is probably even better:
http://www.jonathan-owens.com/2008/0...y-round-1.html


And now I am on a search for a Web site that will give provide an "at a glance" dew point reading every day. If anybody finds a good one, please post it here. Thanks!
Originally Posted by jillipoo
That 1st link - was my hometowns local news station....you probably don't care but it made me notice it because of the call letters.
Central Massachusetts

One good reason to only maintain a small circle of friends is that three out of four murders are committed by people who know the victim. ~George Carlin~

In regards to Vagazzling: They just want to get into the goods without worrying about getting scratched up by fake crystals. ~spring1onu~
Well this thread is enlightning. Our dew point today is 67. Lovely. No wonder my hair looks like garbage. I was blaming it on Biotera. Poor gel gets all the blame.
Originally Posted by Kitara
Yuck, that is sticky.

Curl Keeper might help... it'd be an interesting thread to start, especially with folks in the SE US getting the humids already.
Kiva! Microfinance works.

Med/Coarse, porous curly.
Well this thread is enlightning. Our dew point today is 67. Lovely. No wonder my hair looks like garbage. I was blaming it on Biotera. Poor gel gets all the blame.
Originally Posted by Kitara

Yeah, mine is 66. We must be neighbors because it seems like the rest of the country has it much better than us. I have to say, though, my hair doesn't seem to be responding negatively. Then again, maybe dew point is always high here and my hair could be better if it wasn't. Hmmm.
That's right, I said it! I wear scrunchies!!

I am a sulfate washing, cone slabbing, curly lovin' s.o.b. The CG police haven't caught me yet.


3a/3b
Can too low dew point be bad? I was thinking, Lucky Nevada...dew point 4! But maybe too low of one isn't good either ???
That's right, I said it! I wear scrunchies!!

I am a sulfate washing, cone slabbing, curly lovin' s.o.b. The CG police haven't caught me yet.


3a/3b
Can too low dew point be bad? I was thinking, Lucky Nevada...dew point 4! But maybe too low of one isn't good either ???
Originally Posted by Boomygrrl
It can be. Low winter dew points is what contributes to some curlies loss of curl in the dry winter months.
Kiva! Microfinance works.

Med/Coarse, porous curly.
Well this thread is enlightning. Our dew point today is 67. Lovely. No wonder my hair looks like garbage. I was blaming it on Biotera. Poor gel gets all the blame.
Originally Posted by Kitara

Yeah, mine is 66. We must be neighbors because it seems like the rest of the country has it much better than us. I have to say, though, my hair doesn't seem to be responding negatively. Then again, maybe dew point is always high here and my hair could be better if it wasn't. Hmmm.
Originally Posted by Boomygrrl
No kidding! The only one higher than Arkansas is the very bottom tip of Texas. Sheesh. Is this JULY?!? I really thought it was April, but maybe we time warped or something.
Well that explains why Seattle is fairly un-horrible considering how high the relative humidity usually is. It all makes sense now!
Well this thread is enlightning. Our dew point today is 67. Lovely. No wonder my hair looks like garbage. I was blaming it on Biotera. Poor gel gets all the blame.
Originally Posted by Kitara

Yeah, mine is 66. We must be neighbors because it seems like the rest of the country has it much better than us. I have to say, though, my hair doesn't seem to be responding negatively. Then again, maybe dew point is always high here and my hair could be better if it wasn't. Hmmm.
Originally Posted by Boomygrrl
No kidding! The only one higher than Arkansas is the very bottom tip of Texas. Sheesh. Is this JULY?!? I really thought it was April, but maybe we time warped or something.
Originally Posted by Kitara
Oh, ho! I agree with the time warp, but ours is winter! We get two days of about 70 degrees, then the very next day we'll get snow! Hello...this is APRIL! It should be a constant warmth, here! And it's raining today...loverly.
2B...ish
http://public.fotki.com/SunshineGrrl/ pw: drama
Products
This area is under construction as my hair type changed and nothing works well for me. I shampoo, I condition and pretty much have done nothing but chuck my hair in a messy bun for the past oh...year? Yeah, I'm that lazy.

No...going no-poo or CG does not work for me. It leaves me overconditioned and oily in a second no matter what I use, so that's not what's not working.
Wow, I was looking at the dew point map. Some parts of Colorado and New Mexico have dew points below zero.

That is Dune dry for goodness sake.
Kiva! Microfinance works.

Med/Coarse, porous curly.
Yep. Welcome to our hell. I mean, paradise! It's not as bad here as in CO or NM most of the time, but it is bone dry.
2B...ish
http://public.fotki.com/SunshineGrrl/ pw: drama
Products
This area is under construction as my hair type changed and nothing works well for me. I shampoo, I condition and pretty much have done nothing but chuck my hair in a messy bun for the past oh...year? Yeah, I'm that lazy.

No...going no-poo or CG does not work for me. It leaves me overconditioned and oily in a second no matter what I use, so that's not what's not working.

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