Fog in Cape Romanzof, AK

daily fog outlook & 2016–2026 climatology
Fog possible — NWS guidance shows a fog signal in the next 48 hours. August typically brings about 61 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at Cape Romanzof LRRS Airport (PACZ). This station is in forecast verification — percentages publish when it clears the accuracy bar.

Measuring station

stationairportfog hours/yrforecast
PACZCape Romanzof LRRS Airport628 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 Cape Romanzof fogs in

Fog here concentrates in February and March — about 628 hours in a typical year at PACZ, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the PACZ station page.

Fog season

January: ~66 hJanFebruary: ~80 hFebMarch: ~81 hMarApril: ~57 hAprMay: ~47 hMayJune: ~32 hJunJuly: ~68 hJulAugust: ~61 hAugSeptember: ~24 hSepOctober: ~15 hOctNovember: ~25 hNovDecember: ~65 hDec
Fog season runs November through September, peaking in March; fog here can hit at any hour of the day; 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.