Fog in Erie, PA

daily fog outlook & 2016–2026 climatology
No fog signal in NWS guidance for the next 48 hours. dense fog (visibility under a mile) is rare here in August.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Erie International Tom Ridge Field (KERI). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
KERIErie International Tom Ridge Field42 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 Erie fogs in

Fog here concentrates in December and January — about 42 hours in a typical year at KERI, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the KERI station page.

Fog season

January: ~8 hJanFebruary: ~4 hFebMarch: ~6 hMarApril: ~1 hAprMay: ~4 hMayJune: ~3 hJunJuly: ~1 hJulAugust: ~0 hAugSeptember: ~1 hSepOctober: ~1 hOctNovember: ~4 hNovDecember: ~10 hDec
Fog season is January, February, March, May, June, November, December, peaking in December; fog is mostly a 6 AM–5 PM phenomenon; 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.