Grass Valley is snow country
Grass Valley has mild winters and warm summers, with plenty of rain. A typical July afternoon reaches 89°, a January night drops to 36°, and about 15 inches of snow falls in a normal winter. Normal November highs come to 59°, and lows to 40°.
Getting the latest forecast from the National Weather Service…
What stands out about Grass Valley’s weather
Read from 30 years of NOAA records. Each one opens the full story on the Climate page.
Where today sits in Grass Valley’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 Grass Valley.
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 Grass Valley itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Nevada City, CA (3 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.