CYAH pressure (QNH) trend
La Grande-4 Airport
The altimeter setting over time. Sharp falls mark approaching systems; the range tells you what to expect on a transition altitude.
Lowest QNH
986 hPa
Sep 10, 2026
Highest QNH
1032 hPa
Sep 22, 2026
Mean QNH
1014 hPa
1,050 archived observations · Archive updated continuously
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