Fog in Whitehorse, YT

daily fog outlook & 2016–2026 climatology
No fog signal in NWS guidance for the next 48 hours. August typically brings about 1 hour of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Whitehorse / Erik Nielsen International Airport (CYXY). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
CYXYWhitehorse / Erik Nielsen International Airport20 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 Whitehorse fogs in

Fog here concentrates in January and December — about 20 hours in a typical year at CYXY, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the CYXY station page.

Fog season

January: ~7 hJanFebruary: ~1 hFebMarch: ~0 hMarApril: ~0 hAprMay: ~0 hMayJune: ~1 hJunJuly: ~1 hJulAugust: ~1 hAugSeptember: ~2 hSepOctober: ~1 hOctNovember: ~2 hNovDecember: ~4 hDec
Fog season is January, September, November, December, peaking in January; fog is mostly a 6 AM–1 PM phenomenon; typically thinning out by 5 PM; 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.