Fog in Stephenville, NL

daily fog outlook & 2016–2026 climatology
Forecast feed initializing for this station. August typically brings about 2 hours of dense fog here (10-year average).

Measured at Stephenville Dymond International Airport (CYJT). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
CYJTStephenville Dymond International Airport90 h/yrverifying

Fog is measured where instruments live — airports. Hours/yr = time below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), the aviation definition of seriously dense fog.

When Stephenville fogs in

Fog here concentrates in February and July — about 90 hours in a typical year at CYJT, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the CYJT station page.

Fog season

January: ~10 hJanFebruary: ~17 hFebMarch: ~9 hMarApril: ~7 hAprMay: ~3 hMayJune: ~10 hJunJuly: ~12 hJulAugust: ~2 hAugSeptember: ~3 hSepOctober: ~5 hOctNovember: ~2 hNovDecember: ~7 hDec
Fog season is January, February, March, April, June, July, October, December, peaking in February; fog here can hit at any hour of the day; a typical event lasts about 1 hour once it forms local time · 10-yr average

Machine access: data.json · llms.txt · forecast verification. Not for operational use.