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Weather in Twin Falls County, Idaho for December 2026

Your guide to Twin Falls County weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 2 snowy days, Twin Falls County usually enjoys a light touch of snow in December.

    • Temperatures

  • In general, the average temperature in Twin Falls County at the beginning of December is 5.1 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 5.4 °F by the end of December.

    • Rain 🌧️

  • Twin Falls County experiences moderate rainfall in December, with an average of 8 rainy days and a total precipitation of 76.7 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
21
Dry days
Average rainy days
8
Rainy days
Average snowy days
2
Snow days
Average temperatures
7°/-1°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Twin Falls County Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Freezing fog
4°
2
Moderate snow
5°
3
Mist
0°
4
Mist
4°
5
Overcast
10°
6
Moderate or heavy sleet
7°
7
Overcast
6°
8
Overcast
9°
9
Overcast
10°
10
Overcast
14°
11
Partly cloudy
11°
12
Sunny
9°
13
Overcast
9°
14
Cloudy
10°
15
Overcast
8°
16
Thundery outbreaks possible
12°
17
Moderate or heavy rain with thunder
10°
18
Moderate or heavy rain shower
3°
19
Overcast
8°
20
Freezing fog
1°
21
Fog
8°
22
Overcast
9°
23
Overcast
11°
24
Overcast
10°
25
Mist
10°
26
Thundery outbreaks possible
9°
27
Overcast
3°
28
Sunny
0°
29
Sunny
4°
30
Sunny
6°
31
Overcast
6°

Temperatures trend during December in Twin Falls County

See the weather trend as well as the moving average line

December weather in Twin Falls County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Freezing fog
Freezing fog
 4° /-5° 0 mm 0 cm
Dec. 2 Moderate snow
Moderate snow
 5° /0° 8.8 mm 6.4 cm
Dec. 3 Mist
Mist
 0° /-3° 0 mm 0 cm
Dec. 4 Mist
Mist
 4° /-6° 0 mm 0 cm
Dec. 5 Overcast
Overcast
 10° /1° 0.8 mm 0 cm
Dec. 6 Moderate or heavy sleet
Moderate or heavy sleet
 7° /0° 11.2 mm 0 cm
Dec. 7 Overcast
Overcast
 6° /0° 0 mm 0 cm
Dec. 8 Overcast
Overcast
 9° /4° 0 mm 0 cm
Dec. 9 Overcast
Overcast
 10° /1° 0 mm 0 cm
Dec. 10 Overcast
Overcast
 14° /4° 0 mm 0 cm
Dec. 11 Partly cloudy
Partly cloudy
 11° /0° 0 mm 0 cm
Dec. 12 Sunny
Sunny
 9° /0° 0 mm 0 cm
Dec. 13 Overcast
Overcast
 9° /-1° 0 mm 0 cm
Dec. 14 Cloudy
Cloudy
 10° /-3° 0 mm 0 cm
Dec. 15 Overcast
Overcast
 8° /-2° 0 mm 0 cm
Dec. 16 Thundery outbreaks possible
Thundery outbreaks possible
 12° /4° 0 mm 0 cm
Dec. 17 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 10° /0° 22 mm 0 cm
Dec. 18 Moderate or heavy rain shower
Moderate or heavy rain shower
 3° /-2° 21.9 mm 0 cm
Dec. 19 Overcast
Overcast
 8° /2° 1.5 mm 0 cm
Dec. 20 Freezing fog
Freezing fog
 1° /-2° 1.9 mm 1.4 cm
Dec. 21 Fog
Fog
 8° /2° 1.3 mm 0 cm
Dec. 22 Overcast
Overcast
 9° /5° 0 mm 0 cm
Dec. 23 Overcast
Overcast
 11° /3° 0 mm 0 cm
Dec. 24 Overcast
Overcast
 10° /2° 1.3 mm 0 cm
Dec. 25 Mist
Mist
 10° /3° 0 mm 0 cm
Dec. 26 Thundery outbreaks possible
Thundery outbreaks possible
 9° /4° 6 mm 0 cm
Dec. 27 Overcast
Overcast
 3° /-4° 0 mm 0 cm
Dec. 28 Sunny
Sunny
 0° /-7° 0 mm 0 cm
Dec. 29 Sunny
Sunny
 4° /-7° 0 mm 0 cm
Dec. 30 Sunny
Sunny
 6° /-4° 0 mm 0 cm
Dec. 31 Overcast
Overcast
 6° /-4° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Twin Falls 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 Twin Falls County forecast closer to your planned date for the most up-to-date weather information.
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Twin Falls County in December - FAQ

What are the expected maximum and minimum temperatures in Twin Falls County during December?

Prepare for cooler days with highs just around 7° and colder nights, dipping below -1°.

How much rainfall should be expected in Twin Falls County during December?

Moderate rainfall is anticipated in Twin Falls County during December, with a total of 76.7 mm spread over approximately 8 days. Considering plans for rainy days is advisable.

Will it snow in Twin Falls County in December 2026?

Twin Falls County experiences an average snowfall of 7.7 cm during December, occurring over 2 days.

What are the typical wind conditions in Twin Falls County during December?

The average wind speed in Twin Falls County during December is 23 km/h, suggesting breezy to windy conditions, depending on your activities.

Twin Falls County snow forecast December 2026

Track daily snowfall levels and discover Twin Falls County’s snowy potential this December ❄️
On average, Twin Falls County sees 2 snowy days during December, with approximately 7.7 cm of total snowfall.

December rainfall patterns in Twin Falls County

Explore the daily rainfall trends and prepare for Twin Falls Countys December weather 💧
Typically, Twin Falls County has 8 rainy days in December with a total of 76.7 mm of rainfall.
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Location coordinates Where is Twin Falls County?

Get accurate weather forecasts for Twin Falls County, located at latitude 42.563 and longitude -114.461. Stay updated with localized weather information tailored for Twin Falls County.

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