Fog in New Richmond, WI

daily fog outlook & 2016–2026 climatology
Fog unlikely through Monday (peak 12%). August typically brings about 7 hours of dense fog here.forecast cycle 2026-08-16T00:00:00Z · page rebuilt daily · live layers below update hourly

Measured at New Richmond Regional Airport (KRNH). Forecast percentages for this station have passed live verification.

Measuring station

stationairportfog hours/yrforecast
KRNHNew Richmond Regional Airport64 h/yrlive forecast

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 New Richmond fogs in

Fog here concentrates in December and January — about 64 hours in a typical year at KRNH, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the KRNH station page.

Fog season

January: ~9 hJanFebruary: ~7 hFebMarch: ~3 hMarApril: ~2 hAprMay: ~3 hMayJune: ~2 hJunJuly: ~6 hJulAugust: ~7 hAugSeptember: ~8 hSepOctober: ~4 hOctNovember: ~4 hNovDecember: ~9 hDec
Fog season is January, February, March, May, July, August, September, October, November, December, peaking in January; fog is mostly a 2 AM–7 AM phenomenon; typically thinning out by 11 AM; 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.