VILK — Chaudhary Charan Singh International Airport

fog forecast & climatology · Lucknow city page · full 10-year analysis →
No fog forecast feed exists for this station. September typically brings about 1 hour of dense fog here (10-year average).

Fog hours per year
342 h below CAT I minima (2016–2026 average)
Fog season
January and December
Typical fog event
~3 h once it forms (middle half 2–6 h, n=681)
Data through
2026-08-15 · machine-readable data.json

When this airport fogs in

In a typical year Chaudhary Charan Singh International Airport spends 342 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: ~185 hJanFebruary: ~24 hFebMarch: ~1 hMarApril: ~0 hAprMay: ~0 hMayJune: ~0 hJunJuly: ~0 hJulAugust: ~0 hAugSeptember: ~1 hSepOctober: ~2 hOctNovember: ~27 hNovDecember: ~136 hDec
Fog season runs December through January, peaking in January; fog is mostly a 2 AM–9 AM phenomenon; typically thinning out by 11 AM; a typical event lasts about 3 hours 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.