Humidity from Dark Sky
Dark Sky makes humidity data available so we’d add this along with the other weather attributes we already track.
Barometric pressure is also a significant factor.... Temperature precipitation and wind provide metrics which amount to water is wet… For those of us with chronic health issues like asthma allergies arthritis fibromyalgia, we need humidity barometric pressure temperature precipitation and Wind speed because it impacts our health
So I’ve been looking into this and would like to ask folks for feedback. Humidity is usually tracked as a percentage, but of course 100% humidity at a low temp feels a lot different to 100% humidity when it’s quite hot. However, we’d still just record “100%” for both of these, and, because we find correlations across only two attributes at a time, if we tracked humidity this way we’d only be comparing “humidity vs mood”, “humidity vs sleep”, etc., without taking into account the temperature too. If the temperature is a factor for you, then this is going to give you incorrect correlations (or just not find any) because what you really want to be tracking is “humidity relative to temperature”. It turns out this exists, and it’s called the “dew point”.
So, for those wanting to track this for health reasons, does humidity affect your health even when it’s cold and doesn’t feel “muggy”? Or does humidity come into play more when it’s hot, and thus should I actually be adding dew point instead? (Yes, I could add both, but that’s overkill and might just end up giving you confusing combos of correlations. Better if we can agree on one or the other.)
Agree with The Mad Canudist - both absolute and relative humidity matter. Relative humidity might be more likely to affect my mood (as in, a warm, humid day will make me much more likely to have road rage), but absolute humidity and barometric pressure (which are related) are more likely to cause migraines.
When you talk about “absolute humidity”, can you point me to other weather services that present this measurement? I’ve seen humidity sometimes presented as “relative humidity” but never see the absolute equivalent, so I worry that users won’t know what this is if it’s uncommon. Is there a specific weather service you use that tracks this?