Sunday, July 5, 2015

It's Humid Out There!

By Salt Lake City standards, dew points don't get much higher than they are this morning.  At the Salt Lake City airport, the dew point maxed out at 67ºF at 9:50 AM and is currently sitting at a muggy 65ºF.

Nobody from the deep south will think much of this, but that's about as humid as it gets in Salt Lake City.  I don't know what the dew point records are for the Salt Lake City airport (pass them along if you know them), but I consider anything above 65ºF to be quite high and anything around 68ºF to be rare.

Although the humidity is good for the skin, it makes things far more uncomfortable and renders evaporative coolers completely ineffective.  It does, however, look like our run of >90ºF days, which sits at 20, will come to an end today.


  1. Unrelated to this post, did you notice the surge in PM 2.5 pollution on the night of July 4th? I have observed this in previous years, and recall at least one year when it exceeded 100 ug/m3.

    1. Yup, that's a regular occurrence from fireworks.

  2. I think the record dew point for KSLC is 68 F. The wet bulb temp rarely gets above 70 F at this elevation (even in a very moist tropical air mass) so its hard to get a dew point much above the mid 60s.