Fog in Ogdensburg, NY

daily fog outlook & 2016–2026 climatology
Fog unlikely through Monday (peak 10%). August typically brings about 3 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Ogdensburg International Airport (KOGS). Forecast percentages for this station have passed live verification.

Measuring station

stationairportfog hours/yrforecast
KOGSOgdensburg International Airport49 h/yrlive forecast

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 Ogdensburg fogs in

Fog here concentrates in December and September — about 49 hours in a typical year at KOGS, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the KOGS station page.

Fog season

January: ~3 hJanFebruary: ~5 hFebMarch: ~3 hMarApril: ~3 hAprMay: ~2 hMayJune: ~2 hJunJuly: ~2 hJulAugust: ~3 hAugSeptember: ~7 hSepOctober: ~4 hOctNovember: ~5 hNovDecember: ~8 hDec
Fog season is year-round, peaking in December; fog is mostly a 1 AM–8 AM phenomenon; typically thinning out by noon; 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.