The early season weather pattern in CO is quite interesting. Starting with Silverton making headlines in September (just about every year) with semi skiable terrain up high, then into October, where Loveland & A-basin usually open on man-made, but with a decent about of natural to help out, CO really does embody the best of early season skiing in the US.
These early storms are interesting. They follow a different jet then later in the season. These backdoor sliders come in somewhat higher and furhter to the East than normal Pacific storms and then really develop over Colorado, often missing or underwhelming most of the other Western states, including WA, OR, CA, WY, UT. A prime example is this week's storm; Tahoe got nil, UT got 3" and parts of CO got 15". Pretty amazing (and great for CO!).
Then, as the season really gets going, these backdoor sliders tend to subside and a more typical weather pattern sets up. Storms form off the Pacific coast and dive south, making landfall somewhere near WA/OR and head inland. The spot that they come assore make a huge difference in where the snow dumps. Early season sets up direct hits for WA, MT, WY and N. UT. Later, around Xmas, Tahoe get more direct hits and the Jet flattens out to carry the storms across the Rockies, but leaving CO with merely the dregs. It seems most of the base building in CO is done in Oct, Nov, & Dec and from there on it is more maintenance. At least that is my observation. Since bases *seem* to building quite well in CO already, I would suggest (predict) that coverage for the rest of the season should be quite good. Enjoy the goods!