Snow is rare in American Canyon
American Canyon has mild winters and pleasant summers, with very little rain. A typical July afternoon reaches 82°, a January night drops to 39°, and snow is almost unheard of. Normal November highs come to 65°, and lows to 43°.
Getting the latest forecast from the National Weather Service…
What stands out about American Canyon’s weather
Read from 30 years of NOAA records. Each one opens the full story on the Climate page.
Where today sits in American Canyon’s year
Typical highs and lows month by month, from 30 years of NOAA records.
Weather talk
Road reports, first frosts and storm memories from neighbors in American Canyon.
Your answer becomes a post in Town Square.
Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for American Canyon itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Napa State Hospital, CA (7 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.