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December Weather

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Sun Valley

Idaho, USA

❄️
-1°C (30°F)
Feels like -5°C (23°F)

December Weather Details

🌡️ Temperature

Daytime Highs
-1°C
(30°F)
Nighttime Lows
-12°C
(10°F)

Very cold and snowy with a feels-like temperature of -5°C (23°F) .

🌧️ Rainfall

Moderate (snow)

December rainfall patterns vary by location. Check local forecasts for specific precipitation amounts.

💧 Humidity

76% Average

Humidity levels affect how the temperature feels. Higher humidity makes warm temperatures feel hotter.

☀️ Sunshine

4-5 hours daily

December days are shorter in the northern hemisphere. Plan activities accordingly.

Temperature, humidity and rainfall are December averages for 2015–2024 from Open-Meteo (ERA5 reanalysis), licensed CC BY 4.0.

🎯 Popular Activities

Activities

  • Skiing
  • Snowshoeing
  • Ice skating
  • Hot springs
  • Nordic skiing

Attractions

  • Bald Mountain
  • Dollar Mountain
  • Sun Valley Lodge
  • Ketchum
  • Sawtooth National Recreation Area

💰 Cost of Living

$4,000
estimated per month
SOLO TRAVELERS

📶 Internet Speed

60
Mbps
Estimated average speed

📊 Quick Facts

Weather Very cold and snowy
Humidity 76%

✅ December Summary

December in Sun Valley offers very cold and snowy weather with temperatures ranging from -12°C (10°F) to -1°C (30°F). The humidity is around 76% and you can expect 4-5 hours daily. Popular activities include Skiing, Snowshoeing, Ice skating and more. For digital nomads, the cost of living is approximately $4,000 per month and internet speeds average 60 Mbps.

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