KBXM — Brunswick Executive Airport

fog forecast & climatology · Brunswick city page · full 10-year analysis →
No fog signal in NWS guidance for the next 48 hours. September typically brings about 21 hours of dense fog here.forecast cycle 2026-09-04T13:00:00Z · page rebuilt daily · live layers below update hourly

Fog hours per year
156 h below CAT I minima (2016–2026 average)
Fog season
June and September
Typical fog event
~2 h once it forms (middle half 1–3 h, n=108)
Data through
2026-08-15 · machine-readable data.json

When this airport fogs in

In a typical year Brunswick Executive Airport spends 156 hours below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), concentrated in June and September. The strip above shows the hour-by-hour pattern for the current month from ten years of weather observations.

Fog season

January: ~12 hJanFebruary: ~6 hFebMarch: ~17 hMarApril: ~9 hAprMay: ~14 hMayJune: ~30 hJunJuly: ~16 hJulAugust: ~7 hAugSeptember: ~21 hSepOctober: ~7 hOctNovember: ~4 hNovDecember: ~6 hDec
Fog season is January, March, April, May, June, July, September, peaking in June; fog is mostly a 3 AM–7 AM phenomenon; typically thinning out by 9 AM; a typical event lasts about 2 hours once it forms local time · 10-yr average

Runway infrastructure

endapproach lightsbest approachlengthRVR
01L8,000 ft
19R8,000 ft
01RMALSRCAT I8,000 ft
19LLPV8,000 ft

From FAA NASR / curated AIP Canada research. Approach-light class and minima tier drive how low an approach can be flown — details in the chase board.

For flight operations

EFVS crews: the CHASE board ranks airports by live fog status, approach lighting, go-around height and flight time from your base. Forecast probabilities publish here per-airport once the calibrated model beats climatology on live verification — receipts on the scorecard. Methodology.

Sources: NOAA/NWS National Blend of Models guidance · METAR observations 2016–2026 (Iowa Environmental Mesonet) · FAA NASR. Machine access: data.json · llms.txt. Not for operational use.