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.
Wyoming is quite windy, and during the winter there are frequent periods when the wind reaches 30 to 40 miles per hour with gusts to 50 or 60. Prevailing directions in the different localities vary form west-south-west through west to northwest.