K4O4 pressure (QNH) trend
McCurtain County Regional Airport
The altimeter setting over time. Sharp falls mark approaching systems; the range tells you what to expect on a transition altitude.
Lowest QNH
1008 hPa
Sep 11, 2026
Highest QNH
1025 hPa
Sep 17, 2026
Mean QNH
1017 hPa
850 archived observations · Archive updated continuously
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