CYGX pressure (QNH) trend
Gillam Airport
The altimeter setting over time. Sharp falls mark approaching systems; the range tells you what to expect on a transition altitude.
Lowest QNH
991 hPa
Sep 11, 2026
Highest QNH
1026 hPa
Sep 17, 2026
Mean QNH
1011 hPa
398 archived observations · Archive updated continuously
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