Fog in Anderson, SC

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 Anderson Regional Airport (KAND). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
KANDAnderson Regional Airport58 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 Anderson fogs in

Fog here concentrates in January and December — about 58 hours in a typical year at KAND, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the KAND station page.

Fog season

January: ~13 hJanFebruary: ~5 hFebMarch: ~5 hMarApril: ~2 hAprMay: ~2 hMayJune: ~2 hJunJuly: ~1 hJulAugust: ~1 hAugSeptember: ~2 hSepOctober: ~3 hOctNovember: ~8 hNovDecember: ~13 hDec
Fog season runs November through March, peaking in January; fog is mostly a 5 AM–8 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.