Weather in City of Grass Valley in October

General weather information about City of Grass Valley

Average annual temperature is 13.4 °C

Absolute maximum temperature: 40.9 °C

Absolute minimum temperature: -5.1 °C

Number of sunny days: 236 days

Number of rainy days: 128 days

Number of snow days: 1 day

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* Weather data for City of Grass Valley United States is based on climate observations for 2026 year

City of Grass Valley air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)16.919.116.628.129.536.140.938.530.030.922.820.0
Average daytime temperature (°C)10.210.79.117.821.726.834.532.225.422.616.413.4
Average temperature (°C)5.24.64.310.915.119.326.124.218.014.99.57.6
Average night temperature (°C)1.80.21.05.08.812.216.916.311.69.14.63.2
Absolute minimum temperature (°C)-3.8-3.6-4.3-5.13.37.210.112.07.9-0.8-0.2-2.0

City of Grass Valley monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.014.013.011.010.09.0
Daylight mean duration (h)9.810.712.013.214.314.914.613.712.411.210.19.5
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)5.06.96.711.211.813.013.612.110.89.48.05.7
Precipitation (mm)39617337329513016773592156
Sunny days11147251922302823222114
Rainy days20132451281379917
Snow days010000000000

City of Grass Valley - weather forecast by months

City of Grass Valley weather in januaryCity of Grass Valley weather in februaryCity of Grass Valley weather in marchCity of Grass Valley weather in aprilCity of Grass Valley weather in mayCity of Grass Valley weather in juneCity of Grass Valley weather in julyCity of Grass Valley weather in augustCity of Grass Valley weather in septemberCity of Grass Valley weather in octoberCity of Grass Valley weather in novemberCity of Grass Valley weather in december

Best time to visit City of Grass Valley:

The best time to visit City of Grass Valley during the most sunny months:

  • June — 13.0(h)
  • July — 13.6(h)
  • August — 12.1(h)

The largest precipitation sum in City of Grass Valley is at

  • January — 396(mm)
  • February — 173(mm)
  • March — 373(mm)
  • December — 156(mm)

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    Frequently asked questions

    When is the best time to visit City of Grass Valley?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit City of Grass Valley.
    What is the weather like in City of Grass Valley?
    See average temperature, rainfall and daylight hours for City of Grass Valley by month in the table above.
    How many sunny days does City of Grass Valley have?
    The monthly weather statistics above show sunshine and rainfall patterns for City of Grass Valley throughout the year.