Fog in Elmira/Corning, NY

daily fog outlook & 2016–2026 climatology
Some chance of fog — peaks at 22% around 5 am Monday.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Elmira Corning Regional Airport (KELM). Forecast percentages for this station have passed live verification.

Measuring station

stationairportfog hours/yrforecast
KELMElmira Corning Regional Airport162 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 Elmira/Corning fogs in

Fog here concentrates in September and October — about 162 hours in a typical year at KELM, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the KELM station page.

Fog season

January: ~4 hJanFebruary: ~4 hFebMarch: ~7 hMarApril: ~5 hAprMay: ~10 hMayJune: ~11 hJunJuly: ~15 hJulAugust: ~23 hAugSeptember: ~44 hSepOctober: ~29 hOctNovember: ~10 hNovDecember: ~4 hDec
Fog season runs June through October, peaking in September; fog is mostly a 3 AM–7 AM phenomenon; typically thinning out by 9 AM; a typical event lasts about 2 hours once it forms local time · 10-yr average

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