When to go · Grass Valley
Grass Valley in September
Great month. Inside Grass Valley's best window: Apr–Jun, Sep–Oct.
Key facts
- Verdict
- Great
- Temperature
- 31°C88°F / 14°C57°F
- average high / low
- Rain days
- 2
- Crowds
- Medium
- United States overall
- Prices
- Medium
- United States overall
Verdict
GreatBest and avoid months for Grass Valley
Inside Grass Valley's best window: Apr–Jun, Sep–Oct.
Weather in September
- Grass ValleyHighs around 31 °C, lows around 14 °C, rain on about 2 daysHighs around 88 °F, lows around 57 °F, rain on about 2 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Labor Day big impact
1st Monday of September · United States
End of summer; last big road-trip weekend.
Crowds and prices
- Crowds · United States overall
- Medium
- Prices · United States overall
- Medium
United States overall: After Labor Day the crowds drop and parks stay open; Florida and the Gulf are at hurricane peak.
What to pack
- Light, breathable clothes, a sun hat and sunscreen