I heard a "fun fact" that Denver has the most sunny days per year of any city in the States - some 300 days out of every year are sunny. The theory is that the mountains form a barrier that drain the weather fronts coming east of their energy, so by the time they clear the final range before Denver they are pretty much spent and dissipate. All I know is almost everyday I walked outside, I looked up to blue sky, and felt the warmth of the sun on my face and skin.
It's also known that just as continual cloud cover and rain can bring about depressive moods, regular exposure to sunlight lifts a person's mood, helps them to have a positive outlook. In the scriptures light is often used as a description of God's presence or as God himself. 1st John 1:5 says "