Average sea-level pressure is . In aviation weather reports (METAR), QNH is transmitted around the world in hectopascals or millibars (1 hectopascal = 1 millibar), except in the United States, Canada, and Japan where it is reported in inches of mercury (to two decimal places). The United States and Canada also report sea-level pressure SLP, which is adjusted to sea level by a different method, in the remarks section, not in the internationally transmitted part of the code, in hectopascals or millibars.Sample METAR of CYVR Nav Canada However, in Canada's public weather reports, sea level pressure is instead reported in kilopascals.
Average sea-level pressure is  In aviation weather reports (METAR) QNH is transmitted around the world in hectopascals or millibars (1 hectopascal = 1 millibar) except in the United States Canada and Japan where it is reported in inches of mercury (to two decimal places) The United States and Canada also report sea-level pressure SLP which is adjusted to sea level by a different method in the remarks section not in the internationally transmitted part of the code in hectopascals or millibarsSample METAR of CYVR Nav Canada However in Canada's public weather reports sea level pressure is instead reported in kilopascals