Respiratory exchange ratio. The respiratory exchange ratio (RER) is the ratio between the amount of carbon dioxide (CO2) produced in metabolism and oxygen (O2) used.[1] Humans typically inhale more molecules of oxygen than they exhale of carbon dioxide because air contains much more oxygen by volume.
Jackson Hole Wyoming Weather & Seasons. 1  The busiest season in Jackson is the summer, particularly in July and August where visitors can enjoy temps between 70 and 90 degrees. September is still summery in temperature (besides cold nights), but is quieter. The fall months, October and November, are unpredictable.
Like any mountain environment, the weather in Jackson Hole can vary greatly (and rapidly). Jackson Hole Mountain Resort averages 459 of snow per year. Temperatures can be cold in the winter, but it is a dry cold as we have very little humidity making the cold temperatures more pleasant than you may be used to.