In the new Open-Meteo Weather Driver, "Pressure" is shown as a value like "101890.0" and "Sea Level Pressure" is shown as a value like "1018.9" -- is the only difference the units? That is, "Pressure" is not intended to be the air pressure at the user's latitude and longitude?
I assume Sea Level Pressure is that at your lat/long.
What’s your altitude? If equal or close to sea level then I think they should be equal.
Pressure changes with changes in altitude.
I'm at about 185 feet above sea level. Standard average sea-level pressure is 1013.25 hPa. Near sea level, pressure decreases with increasing altitude at the rate of about one hPa per 28 ft, so there should be about 6.6 hPa difference between average sea level and my location. In the Open-Meteo Weather Driver, there is never any difference (except in magnitude, a units issue) between "Pressure" and "Sea Level Pressure".
Interesting, I am 300 feet above sea level. When I call, the open-meteo weather API I see about 15 mill bars difference between MSL and my surface pressure
pressure_msl":[1021.2,1021.4,1021.5,1021.7,1021.5,1021.4
surface_pressure"[1006.6,1006.8,1006.9,1007.0,1006.8
At present, I have 5 different barometric pressure sensors running locally, and they all agree within 1.4 hPa. The current average as I type this is 1012.3 hPa. The sea level pressure reported by Open-Meteo is 1018.9.
I'm OK with there being differences (the sea is actually about 75 miles away and the Pacific Northwest has highly variable weather).
My question, though, is about the driver output: is "Pressure" intended to just be the same as "Sea Level Pressure" except for the unit magnitude, or are they intended to represent two different parameters (e.g., sea level and local pressure) and the driver thus has a bug?
ADDENDUM: Some time later, I checked the Open-Meteo site directly and for my lat and long, Mean Sea Level is at 1018 and surface pressure is at 1011.5, so that strongly suggests that the new Hubitat driver just reports Pressure as sea level pressure, but in different units (so I think the label "Pressure" is misleading, as it suggests that the value being measured is something different from Sea Level Pressure).
