MMAN — Del Norte International Airport

fog forecast & climatology · Monterrey city page · full 10-year analysis →
No fog signal in NWS guidance for the next 48 hours. dense fog (visibility under a mile) is rare here in September.forecast cycle 2026-09-04T13:00:00Z · page rebuilt daily · live layers below update hourly

Fog hours per year
10 h below CAT I minima (2016–2026 average)
Fog season
December and February
Typical fog event
~1 h once it forms (middle half 1–2 h, n=45)
Data through
2026-08-15 · machine-readable data.json

When this airport fogs in

In a typical year Del Norte International Airport spends 10 hours below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), concentrated in December and February. The strip above shows the hour-by-hour pattern for the current month from ten years of weather observations.

Fog season

January: ~1 hJanFebruary: ~1 hFebMarch: ~1 hMarApril: ~0 hAprMay: ~0 hMayJune: ~0 hJunJuly: ~0 hJulAugust: ~0 hAugSeptember: ~0 hSepOctober: ~0 hOctNovember: ~1 hNovDecember: ~4 hDec
Fog season is December, peaking in December; fog is mostly a 6 AM–8 AM phenomenon; typically thinning out by 9 AM; a typical event lasts about 1 hour once it forms local time · 10-yr average

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.