How Hot Is Old Faithful?
How Hot Is Old Faithful? At only 45 feet (14 m) inside Old Faithful’s throat, the water temperature is 244°F (117°C). Prior to an eruption, the water at the geyser’s vent is 204°F (96°C)—several degrees hotter than the area’s normal surface boiling point of 199°F (93°C). How hot is Yellowstone water? Water erupting from Yellowstone’s