Fog in Perm

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 3 hours of dense fog here (10-year average).

Measured at Perm International Airport (USPP). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
USPPPerm International Airport32 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 Perm fogs in

Fog here concentrates in September and February — about 32 hours in a typical year at USPP, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the USPP station page.

Fog season

January: ~2 hJanFebruary: ~4 hFebMarch: ~3 hMarApril: ~2 hAprMay: ~1 hMayJune: ~2 hJunJuly: ~1 hJulAugust: ~3 hAugSeptember: ~8 hSepOctober: ~2 hOctNovember: ~2 hNovDecember: ~2 hDec
Fog season is January, February, March, April, June, August, September, October, November, December, peaking in September; fog is mostly a 3 AM–9 AM phenomenon; typically thinning out by 11 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.