What I read

Are Your Apps Sluggish? Blame Summer

spectrum.ieee.org / 2 September 2016

On average, your apps will run about 15% slower in the summer! The explanation is due to the science behind the propagation of radio waves. Increases in water vapor cause attenuation of the waves1 , especially at higher frequency bands. This means that the humid summer months will cause degradation in signal strength, and slight delays in data delivered to the handsets of your customer base.