We've stayed there several times in ski season, but we have friends who enjoy the other seasons a lot.
End of November will see temps of 40s high and 20s low, but usually no snow.
The resort is great (views of surrounding mountains are wonderful) and the town of Park City is really fun----lots of good restaurants
and shops, and very walkable. Since the resort is slope-side, you'll take the free town shuttle bus down the mountain into town,
it only takes 5 minutes, and there's plenty to do.
Bus service runs every few minutes and a vehicle is not mandatory to get around.
In spring, summer, and fall the outdoor activities are popular-----hiking and biking, etc. Well worth the trip. Park City is awesome.
Park City, UT
Weather averages
Month........ High / Low(°F)Rain
September. 71° / 40°5 days
October.......59° / 31°6 days
November....44° / 21°6 days
December....35° / 14°6 days
snow season is Dec - March (sometimes into early April)