Idaho Falls (ID)
December
Weather in Idaho Falls, Idaho for December 2026
Your guide to Idaho Falls weather in December - trends and predictions
Idaho Falls typically experiences moderate snowfall in December, with an average of 7 snowy days.
Is December a good time to visit Idaho Falls? check out the best time to travel to Idaho Falls page.
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Snow Forecast ❄️
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21
Dry days
3
Rainy days
7
Snow days
2°/-4°
Temperatures
21 km/h
Avg max wind
87 %
Avg humidity
Idaho Falls Weather December
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Temperatures trend during December in Idaho Falls
See the weather trend as well as the moving average line
December weather in Idaho Falls day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 | Overcast | -1° /-9° | 0 mm | 0 cm | |
| Dec. 2 | Light snow | 2° /-6° | 6.4 mm | 4.6 cm | |
| Dec. 3 | Overcast | 2° /-9° | 0 mm | 0 cm | |
| Dec. 4 | Overcast | -1° /-6° | 0 mm | 0 cm | |
| Dec. 5 | Patchy rain possible | 2° /-6° | 1 mm | 0.7 cm | |
| Dec. 6 | Overcast | 1° /-5° | 0 mm | 0 cm | |
| Dec. 7 | Overcast | 0° /-5° | 0 mm | 0 cm | |
| Dec. 8 | Light freezing rain | 2° /-2° | 0.3 mm | 0 cm | |
| Dec. 9 | Overcast | 2° /-3° | 0 mm | 0 cm | |
| Dec. 10 | Overcast | 2° /-2° | 0 mm | 0 cm | |
| Dec. 11 | Overcast | 3° /-4° | 0 mm | 0 cm | |
| Dec. 12 | Overcast | 3° /-2° | 0 mm | 0 cm | |
| Dec. 13 | Light freezing rain | 1° /-4° | 0.1 mm | 0 cm | |
| Dec. 14 | Moderate or heavy snow showers | 3° /-4° | 12.3 mm | 7.7 cm | |
| Dec. 15 | Light snow | 3° /-6° | 2.1 mm | 1.4 cm | |
| Dec. 16 | Light freezing rain | 3° /-2° | 1.9 mm | 0.4 cm | |
| Dec. 17 | Light freezing rain | 4° /-2° | 0.3 mm | 0 cm | |
| Dec. 18 | Overcast | 2° /-3° | 0.7 mm | 0 cm | |
| Dec. 19 | Overcast | 2° /-2° | 0 mm | 0 cm | |
| Dec. 20 | Cloudy | 1° /-5° | 0 mm | 0 cm | |
| Dec. 21 | Light snow | 2° /-4° | 6.3 mm | 1.7 cm | |
| Dec. 22 | Light rain | 4° /1° | 3 mm | 0 cm | |
| Dec. 23 | Patchy rain possible | 6° /0° | 1.1 mm | 0.4 cm | |
| Dec. 24 | Light snow | 4° /-1° | 12.2 mm | 4 cm | |
| Dec. 25 | Light rain | 5° /1° | 5.8 mm | 0 cm | |
| Dec. 26 | Moderate snow | 2° /-1° | 21.3 mm | 8.3 cm | |
| Dec. 27 | Light snow | 0° /-5° | 2.6 mm | 1.5 cm | |
| Dec. 28 | Light snow | -1° /-5° | 3.5 mm | 2.2 cm | |
| Dec. 29 | Light rain | 1° /-5° | 2.7 mm | 0 cm | |
| Dec. 30 | Light snow | 2° /-6° | 5.9 mm | 4.2 cm | |
| Dec. 31 | Cloudy | -1° /-8° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Idaho Falls in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Idaho Falls forecast closer to your planned date for the most up-to-date weather information.
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Idaho Falls in December - FAQ
What are the expected maximum and minimum temperatures in Idaho Falls during December?
Brace for cold days with temperatures not exceeding 2° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Idaho Falls during December?
Moderate rainfall is anticipated in Idaho Falls during December, with a total of 89.4 mm spread over approximately 3 days. Considering plans for rainy days is advisable.
Will it snow in Idaho Falls in December 2026?
Idaho Falls experiences an average snowfall of 37.3 cm during December, occurring over 7 days.
What are the typical wind conditions in Idaho Falls during December?
The average wind speed in Idaho Falls during December is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
Idaho Falls snow forecast December 2026
Track daily snowfall levels and discover Idaho Falls’s snowy potential this December ❄️
On average, Idaho Falls sees 7 snowy days during December, with approximately 37.3 cm of total snowfall.
December rainfall patterns in Idaho Falls
Explore the daily rainfall trends and prepare for Idaho Fallss December weather 💧
Typically, Idaho Falls has 3 rainy days in December with a total of 89.4 mm of rainfall.
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