Fog in McComb, MS

daily fog outlook & 2016–2026 climatology
No fog signal in NWS guidance for the next 48 hours. 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 McComb-Pike County Airport / John E Lewis Field (KMCB). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
KMCBMcComb-Pike County Airport / John E Lewis Field81 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 McComb fogs in

Fog here concentrates in December and February — about 81 hours in a typical year at KMCB, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the KMCB station page.

Fog season

January: ~9 hJanFebruary: ~11 hFebMarch: ~7 hMarApril: ~5 hAprMay: ~4 hMayJune: ~3 hJunJuly: ~5 hJulAugust: ~3 hAugSeptember: ~2 hSepOctober: ~6 hOctNovember: ~9 hNovDecember: ~18 hDec
Fog season is January, February, March, April, July, October, November, December, peaking in December; fog is mostly a 4 AM–7 AM phenomenon; typically thinning out by 9 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.