Sea level. Mean sea level (MSL) (abbreviated simply sea level) is an average level of the surface of one or more of Earth's oceans from which heights such as elevations may be measured.
Dates: September - October. Weather: Autumn in Wyoming is a delight. Many locations will see snow in mid-September, but it doesnât get to be real winter until late November. During October and November youâll discover a warm Indian Summer, with cool nights and beautiful changing colors. Early freezes in the fall are common.
November can be very rainy, or it can be dry and cool. There's no predicting weather, so check the weather when you pack. I'm one of those in parkas and beanies and cashmere - and grateful to be in them. It can get cold.