So being the curious sort I have researched the answer to Les’s question this morning – might a very high barometric pressure raise the boiling point of water here to that of sea level under average pressure. So it turns out that pressure as reported in weather reports is adjusted to sea level equivalent. This is so isobars provide atmospheric information instead of being topographical maps. Second, altitude has more impact on pressure than weather, but not by a huge margin. The actual pressure reported as 101.3kPa at Saskatoon’s elevation is 94.6kPa. According to my math, this means that for water to boil at 100C in Saskatoon the pressure would have to be 108.0kPa, which is right around the record for highest pressure ever recorded (108.6 in Mongolia in 2001). The more usual pressure swings of +/-2kPa would be roughly equivalent to elevation swings of +/-140m.