Fog in Val-d'Or, QC

daily fog outlook & 2016–2026 climatology
No fog signal in NWS guidance for the next 48 hours. August typically brings about 2 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Val-d'Or Airport (CYVO). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
CYVOVal-d'Or Airport38 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 Val-d'Or fogs in

Fog here concentrates in November and December — about 38 hours in a typical year at CYVO, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the CYVO station page.

Fog season

January: ~2 hJanFebruary: ~2 hFebMarch: ~2 hMarApril: ~4 hAprMay: ~1 hMayJune: ~1 hJunJuly: ~2 hJulAugust: ~2 hAugSeptember: ~5 hSepOctober: ~4 hOctNovember: ~7 hNovDecember: ~5 hDec
Fog season runs July through April, peaking in November; fog is mostly a 1 AM–9 AM phenomenon; typically thinning out by 10 AM; 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.