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Monthly climate guide

Yosemite Valley weather in December

December in Yosemite Valley is typically cold, with average daytime highs around 5°C (41°F) and night-time lows near -6°C (22°F). The month usually brings about 80 mm of rain (some rain) and is a mix of sun and cloud. Daytime highs are 5°C cooler than November and about the same as January.

What stands out in December

  • Mornings start cold: the average low is -6°C, and frost is common.
  • Rain is above Yosemite Valley's usual level, by about 53%.
  • Just 110 km apart, but Yosemite Valley runs about 11°C cooler than Fresno this month.
  • In Yosemite Valley, December is early winter.

December is typically Yosemite Valley's coolest month.

Avg high

5°C

41°F

Avg low

-6°C

22°F

Rainfall

80 mm

some rain

Humidity

67%

relative

Sky

46%

cloud · a mix of sun and cloud

Yosemite Valley weather by month

Low → high °C Rain (mm)
Show the monthly averages as a table
Average monthly climate in Yosemite Valley
MonthAvg highAvg lowRainHumidityCloud cover
January5°C / 41°F-5°C / 22°F120 mm71%51%
February5°C / 41°F-6°C / 22°F104 mm72%46%
March6°C / 43°F-4°C / 24°F119 mm77%54%
April11°C / 52°F-1°C / 30°F56 mm69%45%
May15°C / 59°F2°C / 35°F32 mm62%40%
June23°C / 73°F7°C / 45°F10 mm45%20%
July27°C / 80°F12°C / 53°F7 mm37%18%
August27°C / 80°F12°C / 53°F4 mm33%17%
September23°C / 73°F8°C / 46°F7 mm39%21%
October18°C / 64°F3°C / 37°F27 mm43%24%
November10°C / 50°F-1°C / 29°F61 mm56%37%
December5°C / 41°F-6°C / 22°F80 mm67%46%

What to pack for December

  • A proper insulated winter coat
  • A hat, scarf and gloves
  • Thermal base layers and warm, grippy boots for icy mornings
  • A compact umbrella or packable rain jacket
  • Water-resistant shoes
Full season-by-season packing guide →

Is December a good time to visit Yosemite Valley?

Compare the months in the chart above to find your ideal window.

Best time to visit Yosemite Valley →

Other United States cities in December

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Yosemite Valley weather in December. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/usa/yosemite-valley/december
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Yosemite Valley in December: quick answers

Is December a good time to visit Yosemite Valley?

December is cool in Yosemite Valley, with highs around 5°C. Better for museums and city walks than the beach, and usually quieter.

How warm is Yosemite Valley in December?

Average highs are about 5°C (41°F) and average lows about -6°C (22°F), based on 10 years of daily data.

Does it rain a lot in Yosemite Valley in December?

Yosemite Valley typically gets around 80 mm of rain in December — some rain.

Figures are long-term averages for the area around Yosemite Valley (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.