Bonneville County (Idaho Falls)
December
Weather in Bonneville County, Idaho for December 2025
Your guide to Bonneville County weather in December - trends and predictions
Bonneville County typically experiences moderate snowfall in December, with an average of 9 snowy days.
In general, the average temperature in Bonneville County at the beginning of December is 1.4 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 0.4 °F by the end of December.
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Snow Forecast ❄️
Temperatures
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18
Dry days
4
Rainy days
9
Snow days
1°/-5°
Temperatures
16 km/h
Avg max wind
91 %
Avg humidity
Bonneville County Weather December
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Temperatures trend during December in Bonneville County
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December weather in Bonneville County day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Overcast | 1° /-10° | 0 mm | 0 cm | |
| Dec. 2 | Overcast | 4° /-9° | 0 mm | 0 cm | |
| Dec. 3 | Overcast | 4° /-8° | 0 mm | 0 cm | |
| Dec. 4 | Overcast | 1° /-6° | 0 mm | 0 cm | |
| Dec. 5 | Overcast | 0° /-7° | 0 mm | 0 cm | |
| Dec. 6 | Overcast | 0° /-7° | 0 mm | 0 cm | |
| Dec. 7 | Overcast | 0° /-7° | 0 mm | 0 cm | |
| Dec. 8 |  Light freezing rain | 0° /-4° | 0.6 mm | 0 cm | |
| Dec. 9 | Overcast | -1° /-7° | 0 mm | 0 cm | |
| Dec. 10 | Overcast | -2° /-6° | 0 mm | 0 cm | |
| Dec. 11 | Overcast | 0° /-8° | 0 mm | 0 cm | |
| Dec. 12 | Overcast | 1° /-5° | 0 mm | 0 cm | |
| Dec. 13 | Light freezing rain | 0° /-6° | 0.2 mm | 0 cm | |
| Dec. 14 |  Moderate or heavy snow showers | 1° /-1° | 24.5 mm | 15.5 cm | |
| Dec. 15 | Moderate or heavy snow showers | 0° /-5° | 4.1 mm | 2.8 cm | |
| Dec. 16 | Light freezing rain | 0° /-7° | 3.7 mm | 0.9 cm | |
| Dec. 17 | Light freezing rain | 0° /-1° | 0.6 mm | 0 cm | |
| Dec. 18 | Overcast | 2° /-1° | 0 mm | 0 cm | |
| Dec. 19 | Overcast | 0° /-4° | 0 mm | 0 cm | |
| Dec. 20 |  Cloudy | 0° /-6° | 0 mm | 0 cm | |
| Dec. 21 | Overcast | 0° /-7° | 0.1 mm | 0 cm | |
| Dec. 22 | Overcast | 1° /-1° | 0 mm | 0 cm | |
| Dec. 23 |  Patchy moderate snow | 2° /-1° | 2.2 mm | 0.9 cm | |
| Dec. 24 | Moderate or heavy snow showers | 1° /-2° | 11.1 mm | 8 cm | |
| Dec. 25 |  Patchy rain possible | 1° /-2° | 1.6 mm | 0 cm | |
| Dec. 26 |  Moderate snow | 0° /-2° | 3.6 mm | 1.5 cm | |
| Dec. 27 | Moderate snow | 0° /-3° | 5.2 mm | 3 cm | |
| Dec. 28 | Moderate or heavy snow showers | 1° /-1° | 7.1 mm | 4.3 cm | |
| Dec. 29 |  Moderate or heavy rain shower | 3° /0° | 5.4 mm | 0 cm | |
| Dec. 30 | Moderate or heavy snow showers | 0° /-4° | 11.7 mm | 8.3 cm | |
| Dec. 31 | Cloudy | -2° /-7° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Bonneville County 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 Bonneville County forecast closer to your planned date for the most up-to-date weather information.
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Bonneville County in December - FAQ
What are the expected maximum and minimum temperatures in Bonneville County during December?
Brace for cold days with temperatures not exceeding 1° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Bonneville County during December?
Moderate rainfall is anticipated in Bonneville County during December, with a total of 81.8 mm spread over approximately 4 days. Considering plans for rainy days is advisable.
Will it snow in Bonneville County in December 2025?
Bonneville County experiences an average snowfall of 45.3 cm during December, occurring over 9 days.
What are the typical wind conditions in Bonneville County during December?
The average wind speed in Bonneville County during December is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
Bonneville County snow forecast December 2025
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December rainfall patterns in Bonneville County
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Where is Bonneville County?Get accurate weather forecasts for Bonneville County, located at latitude 43.467 and longitude -112.034. Stay updated with localized weather information tailored for Bonneville County.
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