Snow is rare in Petaluma
Petaluma has mild winters and pleasant summers. A typical July afternoon reaches 80°, a January night drops to 39°, and snow is almost unheard of. Normal November highs come to 65°, and lows to 42°.
Getting the latest forecast from the National Weather Service…
What stands out about Petaluma’s weather
Read from 30 years of NOAA records. Each one opens the full story on the Climate page.
Where today sits in Petaluma’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 Petaluma.
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 Petaluma itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Petaluma Airport, CA (2 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.