I have noticed that the washer nozzle on the drivers side closest to the A-pillar is less pressurized than the other three nozzles. Is anyone else's like this?

 

All four of mine are pretty close to the same pressure. Have you looked to see if there is anything obstructing the jet opening? Perhaps it is partially clogged. My only problem is that one of the nozzles is aimed wrong and the stream shoots right over the top of the car. I haven't gotten around to attempting to adjust it yet.

 

Is it cold in Denver? I've noticed a pressure drop in all the nozzles here in metro Detroit. My bet is that there's just some ice blockage in there.