A lot of filmmakers get the climate in London (England) wrong all the time (assuming it's alway raining) in fact we get less rain in London (mm/year metric) than a lot of European capitals that one would consider "dry" (e.g. Rome and Lisbon). That said, in the autumn/fall and winter we do get long periods of light rain that do give the impression that it's never going to stop raining lol.
When Phoenix gets monsoons, the humidity goes off the charts. We built a passive house (several) here, and it took quite a while for us to convince the HVAC folks that they needed to find a different AC unit (the high end Mitsubishi units are best). Most AC units don't ramp down low enough while the coils are still on to dehumidify when you have a building that has little cooling needs. We also used wool for our secondary insulation as both a humidity buffer and trap VOCs, that helps us better handle the massive humidity swings. If you have any questions about sustainability, air quality and such for the phoenix area, let me know, always happy to nerd out of this stuff!
Very cool 😎 How about an Air quality map although the ones we see on our phones aren’t correct what do you think about them? 🙏🏽💙 whoops spoke too soon you did air quality map👏
As someone interested in how things are changing from the climate crisis, I would love to see some maps addressing trends in hottest wet bulb temperature if the underlying dataset has that available
Lived in the Seattle area for four years, it's never remotely humid. The reason is it rains constantly in the fall, winter, and early spring, but it stops raining altogether in the summer. So it only rains when it's cool outside and it never rains when it's warm. Most of the southeast however gets TONS of rain all summer hence the high humidity.
That’s a great observation, and I can totally relate since I’ve lived in both places as well. Seattle’s climate is definitely unique-it’s amazing how the rain happens almost exclusively on cool days when the dew point (absolute humidity) can't get particularly high. The southeast, on the other hand, feels like stepping into a steam room all summer with the constant rain and heat! Thanks for sharing your perspective-it’s always interesting to hear how people experience different climates.
Thank you for pointing out how humid it gets here in the Sonoran and Mojave deserts, which experience monsoonal summers while its ~120° F out. Its very hard to get non Californians to understand how varied our climate gets. Case in point, we have snow on Mt San Gorgonio on the last day of summer and its also 93° out an hours drive away.
Believe me, here in the uk we can have oppressive humid days, doesn't happen every summer & this summer was crap but when many places in the south of the UK hit temps around 40c, 42c max in a few places in 2022, that was horrid with how humid it was then add the fact that unlike you lot over there, air conditioning is not something uk homes have. So yeah, when we get temps like that heatwaves are worse over here!
Lack of air conditioning definitely makes heat waves worse. Most homes I've lived in in the US haven't had central AC - I've had to put in window ACs. Do you guys not have window ACs available to you?
This map is so impressive and is going to be very useful for a lot of people. One thing I'm not sure how to apply this to is places with hot dry summers and cool wet winters, like the pacific north west. As you mentioned, Seattle has a colder dew point than Las Vegas during its 1% most humid hours -- however for both places those 1% hours are happening during the winter, and in Seattle that lower dew point is easily hit every night vs more rarely hit in Las Vegas (I assume, based on Wikipedia's climate table for Las Vegas where the average minimum temperature is typically double the dew point). As a result you see mold (and straight up moss) happily growing on everything outdoors in the PNW even if it is sheltered from the rain. That said, if your goal is to capture which places have the worst oppressive heat + humidity problem (rather than mold growth) then this point I'm making about wet winters in the PNW doesn't matter much.
You're incorrect in your assumption that those 1% dew point hours are happening during the winter. They happen during the summer/early fall. This is because when it's cold out, water simply doesn't evaporate as readily as when it's warm out. The dew point can only rise as high as the temperature. For example, if it's 40F and the RH is 100%, the dew point would be 40F. If it's 50F and the RH is 100%, the dew point would be 50F. You can calculate this yourself with a psychrometrics app/site. So, when it's cold, the dew point cannot get high. Check out my dehumidification video for more info - you may be thinking of dew point too literally (only as the point at which dew forms). That being said, yes, there is a lot of organic matter growth (fungal, plant, etc) in the marine region of the PNW. This is because the temperature never gets particularly cold (long growing season), and surfaces tend to stay wet for prolonged periods of time during the rainy season. So yeah, those two factors can definitely lead to more mold being in the air, whether it's outside, or inside (due to water damage from rain). But generally, the kind of mold that grows outdoors isn't as harmful as the kind that grows indoors from water damage.
@@HealthyHomeGuide Thanks for the detailed reply :) So in the definition of 1% dew point ("the outdoor dew point exceeded during the most humid 1% of hours in a year") the most humid hours are defined as the hours where the dew point is highest? I see what you mean, those hours would happen in the summer then. I was indeed thinking of "most humid" roughly as "when condensation forms". What I meant to say was that I believe we get more condensation in the PNW in the cooler months than we do in the warmer months because the temperature more frequently drops low enough to hit the dew point. That is just based off personal experience and the Wikipedia climate tables though so let me know if the ASHRAE data says otherwise.
Ah, I see. I've noticed that outdoor surfaces tend to stay wet during these colder months, whether its from more frequent condensation, or the persistent light rain, or both, I'm not 100% sure. Based on observation, it does seem like outdoor low temp may drop to dew point more frequently in the colder months, though I'm not positive.
Hi. I didn't know where to commen this. I saw your mask video and wanted to purchase the Airgami. but unfortunately the business seems to be gone and no longer selling it. Do you have any other masks that you would reccomend? I'd really appreciate your advice
Hi! Thanks for your comment. I actually pinned a comment about that on the mask video itself. The 3M VFlex is the mask I use now (it's super breathable). I also really like the Moldex Airwave (very breathable as well). Hope that helps.
Theses maps make me think of how much more comfortable and energy efficient people would be if they, like birds and insects, migrated seasonally. Imagine if there was a great migration every year as hundreds of millions of people moved south for the winter and north for the summer. The total energy spend on heating and cooling would be dramatically reduced and people's comfort level and air related health would be significantly higher. Nature's tendency to migrate hints that this healthy lifestyle for animals can actually be a healthier lifestyle for humans to live too!
This is one of my favorite comments that I've gotten on this channel. I totally agree with you. I said something similar to my fiance a couple weeks ago. We absolutely could experience amazing climate year-round if we migrated seasonally. Some people do, I suppose.
@@HealthyHomeGuide Thank you. It’s something I never thought about before your video but it also transformed the way I look at HVAC. Heating and air conditioning are like artificial migrations. Rather than going to a better environment during winter and summer, we control the environment using heating and cooling to simulate the effect. But from an energy perspective, it takes far less energy to transport people to comfortable environments for the season than it does to artificially maintain those environments against the force of nature every day all season long. When nature wants winter, it’s very expensive to create an artificial summer inside our homes and vice versa. And the proliferation of computer jobs and recent advancements in remote work technologies actually enable such mass migrations to be feasible. I think the energy savings in the long run would be immense. The “snow bird” lifestyle has a bright future.
You're right, HVAC does create a sort of artificial migration. It would be really interesting to analyze/visualize the potential energy savings associated with humans seasonally migrating. Maybe I'll do that at some point.
Fascinating stuff. Thanks for all the time and energy you put into this project. I haven’t seen anything else like this (maps).
That's the best comment I could receive, so glad these maps are novel to you!
this is some very useful data, thanks
Glad you think so!
Thanks! The maps are really great
Glad you like them!
A lot of filmmakers get the climate in London (England) wrong all the time (assuming it's alway raining) in fact we get less rain in London (mm/year metric) than a lot of European capitals that one would consider "dry" (e.g. Rome and Lisbon). That said, in the autumn/fall and winter we do get long periods of light rain that do give the impression that it's never going to stop raining lol.
When Phoenix gets monsoons, the humidity goes off the charts. We built a passive house (several) here, and it took quite a while for us to convince the HVAC folks that they needed to find a different AC unit (the high end Mitsubishi units are best). Most AC units don't ramp down low enough while the coils are still on to dehumidify when you have a building that has little cooling needs. We also used wool for our secondary insulation as both a humidity buffer and trap VOCs, that helps us better handle the massive humidity swings. If you have any questions about sustainability, air quality and such for the phoenix area, let me know, always happy to nerd out of this stuff!
I always appreciate your comments, Gerald! Thank you for sharing about your Phoenix approach - I may ask you more questions at some point.
I’d love to see a water quality analysis map
Great suggestion! I'll definitely try to make one.
Great info! Thanks so much for putting this together and sharing with us.
Glad you enjoyed it!
I think I need to listen to this about 10 times, but I’m loving it!! Thank you!
Thanks for listening!
Very cool 😎 How about an Air quality map although the ones we see on our phones aren’t correct what do you think about them? 🙏🏽💙 whoops spoke too soon you did air quality map👏
Indeed I did :)
Not sure if you can get this in the USA, but Japan has an air purifier called VEPHOS. HIGH CADR, lightweight, quiet, small. It could be worth a look.
As someone interested in how things are changing from the climate crisis, I would love to see some maps addressing trends in hottest wet bulb temperature if the underlying dataset has that available
Thanks for the suggestion! I'll add that to my list as well. What'd you think of my dew point trend analysis?
@@HealthyHomeGuide it was really interesting and well done. The trends by city are great.
Awesome, thank you!
Nice work dude! ❤
Thank you! 😊
Lived in the Seattle area for four years, it's never remotely humid. The reason is it rains constantly in the fall, winter, and early spring, but it stops raining altogether in the summer. So it only rains when it's cool outside and it never rains when it's warm. Most of the southeast however gets TONS of rain all summer hence the high humidity.
That’s a great observation, and I can totally relate since I’ve lived in both places as well. Seattle’s climate is definitely unique-it’s amazing how the rain happens almost exclusively on cool days when the dew point (absolute humidity) can't get particularly high. The southeast, on the other hand, feels like stepping into a steam room all summer with the constant rain and heat! Thanks for sharing your perspective-it’s always interesting to hear how people experience different climates.
Thank you for pointing out how humid it gets here in the Sonoran and Mojave deserts, which experience monsoonal summers while its ~120° F out. Its very hard to get non Californians to understand how varied our climate gets. Case in point, we have snow on Mt San Gorgonio on the last day of summer and its also 93° out an hours drive away.
That's fascinating, thank you for weighing in about your experience in Eastern SoCal/SW AZ - it's climatically insane out there.
Believe me, here in the uk we can have oppressive humid days, doesn't happen every summer & this summer was crap but when many places in the south of the UK hit temps around 40c, 42c max in a few places in 2022, that was horrid with how humid it was then add the fact that unlike you lot over there, air conditioning is not something uk homes have. So yeah, when we get temps like that heatwaves are worse over here!
Lack of air conditioning definitely makes heat waves worse. Most homes I've lived in in the US haven't had central AC - I've had to put in window ACs. Do you guys not have window ACs available to you?
Would you be able to do a video on best home radon detectors.
Good suggestion. I may in the near future.
Can you please talk about the gadgets you use to test different places?
I talk a bit about that in my video "How to Do Quick Home Inspections for Air Quality and Mold (Walkthroughs)"
This map is so impressive and is going to be very useful for a lot of people. One thing I'm not sure how to apply this to is places with hot dry summers and cool wet winters, like the pacific north west. As you mentioned, Seattle has a colder dew point than Las Vegas during its 1% most humid hours -- however for both places those 1% hours are happening during the winter, and in Seattle that lower dew point is easily hit every night vs more rarely hit in Las Vegas (I assume, based on Wikipedia's climate table for Las Vegas where the average minimum temperature is typically double the dew point). As a result you see mold (and straight up moss) happily growing on everything outdoors in the PNW even if it is sheltered from the rain. That said, if your goal is to capture which places have the worst oppressive heat + humidity problem (rather than mold growth) then this point I'm making about wet winters in the PNW doesn't matter much.
You're incorrect in your assumption that those 1% dew point hours are happening during the winter. They happen during the summer/early fall. This is because when it's cold out, water simply doesn't evaporate as readily as when it's warm out. The dew point can only rise as high as the temperature. For example, if it's 40F and the RH is 100%, the dew point would be 40F. If it's 50F and the RH is 100%, the dew point would be 50F. You can calculate this yourself with a psychrometrics app/site. So, when it's cold, the dew point cannot get high. Check out my dehumidification video for more info - you may be thinking of dew point too literally (only as the point at which dew forms).
That being said, yes, there is a lot of organic matter growth (fungal, plant, etc) in the marine region of the PNW. This is because the temperature never gets particularly cold (long growing season), and surfaces tend to stay wet for prolonged periods of time during the rainy season. So yeah, those two factors can definitely lead to more mold being in the air, whether it's outside, or inside (due to water damage from rain). But generally, the kind of mold that grows outdoors isn't as harmful as the kind that grows indoors from water damage.
@@HealthyHomeGuide Thanks for the detailed reply :) So in the definition of 1% dew point ("the outdoor dew point exceeded during the most humid 1% of hours in a year") the most humid hours are defined as the hours where the dew point is highest? I see what you mean, those hours would happen in the summer then. I was indeed thinking of "most humid" roughly as "when condensation forms".
What I meant to say was that I believe we get more condensation in the PNW in the cooler months than we do in the warmer months because the temperature more frequently drops low enough to hit the dew point. That is just based off personal experience and the Wikipedia climate tables though so let me know if the ASHRAE data says otherwise.
Ah, I see. I've noticed that outdoor surfaces tend to stay wet during these colder months, whether its from more frequent condensation, or the persistent light rain, or both, I'm not 100% sure. Based on observation, it does seem like outdoor low temp may drop to dew point more frequently in the colder months, though I'm not positive.
Using his website, the most humid place in the world is Muscat Oman 84.5 deg dew point 😳 🥵
Hi. I didn't know where to commen this. I saw your mask video and wanted to purchase the Airgami. but unfortunately the business seems to be gone and no longer selling it. Do you have any other masks that you would reccomend? I'd really appreciate your advice
Hi! Thanks for your comment. I actually pinned a comment about that on the mask video itself. The 3M VFlex is the mask I use now (it's super breathable). I also really like the Moldex Airwave (very breathable as well). Hope that helps.
@@HealthyHomeGuide oh thank you for the quick response! I completely forgot to check the comment section 😅
No worries at all! Happy to help.
Dude’s fixed his health and turned into a genius
These maps would be really useful to find the best locations to power solar plants with hope to power the whole country
Yup! I should do a wind map too.
Theses maps make me think of how much more comfortable and energy efficient people would be if they, like birds and insects, migrated seasonally. Imagine if there was a great migration every year as hundreds of millions of people moved south for the winter and north for the summer. The total energy spend on heating and cooling would be dramatically reduced and people's comfort level and air related health would be significantly higher.
Nature's tendency to migrate hints that this healthy lifestyle for animals can actually be a healthier lifestyle for humans to live too!
This is one of my favorite comments that I've gotten on this channel. I totally agree with you. I said something similar to my fiance a couple weeks ago. We absolutely could experience amazing climate year-round if we migrated seasonally. Some people do, I suppose.
@@HealthyHomeGuide Thank you. It’s something I never thought about before your video but it also transformed the way I look at HVAC. Heating and air conditioning are like artificial migrations. Rather than going to a better environment during winter and summer, we control the environment using heating and cooling to simulate the effect. But from an energy perspective, it takes far less energy to transport people to comfortable environments for the season than it does to artificially maintain those environments against the force of nature every day all season long. When nature wants winter, it’s very expensive to create an artificial summer inside our homes and vice versa.
And the proliferation of computer jobs and recent advancements in remote work technologies actually enable such mass migrations to be feasible. I think the energy savings in the long run would be immense. The “snow bird” lifestyle has a bright future.
You're right, HVAC does create a sort of artificial migration. It would be really interesting to analyze/visualize the potential energy savings associated with humans seasonally migrating. Maybe I'll do that at some point.
Not surprised about japan being humid! I'm in a lot of j-entertainment fandoms and the ppl there are always complaining about it
Interesting, that checks out.
Khm, climate is not warming... We re going towards an ice age lol
Why ignore all scientific evidence on climate warming?