SwitchBot has a new Outdoor Hygrometer / Thermometer that does:
Temperature, Humidity, Dew Point, Absolute Humidity, Vapor-pressure Deficit
Links:
https://www.amazon.com/dp/B0BVLYPYT1
https://www.amazon.com/dp/B0BVZDVFZG
https://support.switch-bot.com/hc/en-us/categories/11479656973719-Outdoor-Meter
Is it possible to get support for this added in HA? I can share my device to help with setup for the project if needed. It has a few more values than just temperature and humidity that I would like to see added to HA. Definitely a nice thing to have.