KDFW — Dallas Fort Worth International Airport

fog forecast & climatology · Dallas-Fort Worth 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
28 h below CAT I minima (2016–2026 average)
Fog season
January and December
Typical fog event
~2 h once it forms (middle half 1–4 h, n=99)
Data through
2026-08-15 · machine-readable data.json

When this airport fogs in

In a typical year Dallas Fort Worth International Airport spends 28 hours below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), concentrated in January and December. The strip above shows the hour-by-hour pattern for the current month from ten years of weather observations.

Fog season

January: ~10 hJanFebruary: ~3 hFebMarch: ~2 hMarApril: ~1 hAprMay: ~1 hMayJune: ~0 hJunJuly: ~0 hJulAugust: ~0 hAugSeptember: ~0 hSepOctober: ~1 hOctNovember: ~2 hNovDecember: ~8 hDec
Fog season runs December through February, peaking in January; fog is mostly a 4 AM–9 AM phenomenon; typically thinning out by 11 AM; a typical event lasts about 2 hours once it forms local time · 10-yr average

Runway infrastructure

endapproach lightsbest approachlengthRVR
13L——9,000 ftRVR
31RMALSRCAT I9,000 ftRVR
13RMALSRCAT I9,300 ftRVR
31L—LPV9,300 ftRVR
17CALSF-2CAT IIIB13,400 ftRVR
35CALSF-2CAT III13,400 ftRVR
17LALSF-2CAT IIIB8,500 ftRVR
35RALSF-2CAT IIIB8,500 ftRVR
17RMALSRCAT I13,400 ftRVR
35LMALSRCAT I13,400 ftRVR
18LMALSRCAT I13,401 ftRVR
36RMALSRCAT I13,401 ftRVR
18RALSF-2CAT IIIB13,400 ftRVR
36LMALSRCAT I13,400 ftRVR

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.