Denver Average Humidity
February 1st = 83%
February 2nd = 84%
February 3rd = 64%
February 4th = 96%
February 5th = 88%
February 6th = 33%
February 7th = 34%
Week Average = ~70%
Chicago Average Humidity
February 1st = 92%
February 2nd = 85%
February 3rd = 88%
February 4th = 92%
February 5th = 85%
February 6th = 78%
February 7th = 88%
Week Average = ~87%
If you're curious, you can look at all averages, max/min values and other data at wunderground.com. Here's Chicago and here's Denver.