Fog in Sleaford, Lincolnshire

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 6 hours of dense fog here (10-year average).

Measured at RAF Cranwell (EGYD). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
EGYDRAF Cranwell238 h/yrclimatology

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 Sleaford, Lincolnshire fogs in

Fog here concentrates in December and January — about 238 hours in a typical year at EGYD, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the EGYD station page.

Fog season

January: ~33 hJanFebruary: ~18 hFebMarch: ~20 hMarApril: ~14 hAprMay: ~11 hMayJune: ~9 hJunJuly: ~3 hJulAugust: ~6 hAugSeptember: ~15 hSepOctober: ~20 hOctNovember: ~31 hNovDecember: ~62 hDec
Fog season runs October through March, peaking in December; fog is mostly a 10 PM–9 AM phenomenon; typically thinning out by 3 PM; 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.