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Weather in Lewiston, Idaho for December 2025

Your guide to Lewiston weather in December - trends and predictions

    Snow Forecast ❄️

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

  • Temperatures

  • In general, the average temperature in Lewiston at the beginning of December is 2.9 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 5.7 °F by the end of December.

  • Rain 🌧️

  • The climate of Lewiston in December is notably wet, with an average of 15 rainy days, and a total of 124.2 mm of precipitation.

  • More

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Average dry days
14
Dry days
Average rainy days
15
Rainy days
Average snowy days
2
Snow days
Average temperatures
5°/-1°
Temperatures
Average wind speed
9 km/h
Avg max wind
Average humidity
88 %
Avg humidity

Lewiston Weather December

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Temperatures trend during December in Lewiston

See the weather trend as well as the moving average line

December weather in Lewiston day by day

Click on a date for more information
Date Weather Temperatures Rain Snow More
Dec. 1 Partly cloudy
Partly cloudy
8° /-2° 0 mm 0 cm
Dec. 2 Sunny
Sunny
5° /-1° 0 mm 0 cm
Dec. 3 Overcast
Overcast
0° /-4° 0 mm 0 cm
Dec. 4 Overcast
Overcast
0° /-3° 0 mm 0 cm
Dec. 5 Overcast
Overcast
0° /0° 0 mm 0 cm
Dec. 6 Overcast
Overcast
0° /-2° 0 mm 0 cm
Dec. 7 Moderate or heavy rain shower
Moderate or heavy rain shower
7° /-2° 6.8 mm 0 cm
Dec. 8 Moderate or heavy rain shower
Moderate or heavy rain shower
7° /-1° 4.2 mm 1.6 cm
Dec. 9 Patchy rain possible
Patchy rain possible
4° /-2° 0.5 mm 0 cm
Dec. 10 Overcast
Overcast
2° /-2° 0 mm 0 cm
Dec. 11 Overcast
Overcast
3° /0° 0 mm 0 cm
Dec. 12 Patchy rain possible
Patchy rain possible
3° /-2° 0.5 mm 0 cm
Dec. 13 Light freezing rain
Light freezing rain
4° /-1° 1.1 mm 0 cm
Dec. 14 Moderate or heavy rain shower
Moderate or heavy rain shower
6° /3° 15 mm 0 cm
Dec. 15 Patchy rain possible
Patchy rain possible
6° /-1° 0.1 mm 0 cm
Dec. 16 Light freezing rain
Light freezing rain
2° /-1° 4.6 mm 1.7 cm
Dec. 17 Light freezing rain
Light freezing rain
4° /-1° 5.1 mm 0 cm
Dec. 18 Heavy rain at times
Heavy rain at times
11° /0° 5.8 mm 0 cm
Dec. 19 Overcast
Overcast
6° /-1° 0 mm 0 cm
Dec. 20 Overcast
Overcast
9° /1° 0 mm 0 cm
Dec. 21 Moderate rain at times
Moderate rain at times
8° /0° 1.7 mm 0 cm
Dec. 22 Patchy rain possible
Patchy rain possible
7° /0° 4.9 mm 0 cm
Dec. 23 Patchy rain possible
Patchy rain possible
9° /3° 1.9 mm 0 cm
Dec. 24 Moderate or heavy rain shower
Moderate or heavy rain shower
6° /1° 27.1 mm 0 cm
Dec. 25 Overcast
Overcast
4° /0° 0 mm 0 cm
Dec. 26 Moderate or heavy rain shower
Moderate or heavy rain shower
8° /0° 13.4 mm 0 cm
Dec. 27 Light freezing rain
Light freezing rain
4° /0° 4.7 mm 0 cm
Dec. 28 Moderate or heavy rain shower
Moderate or heavy rain shower
9° /1° 18.6 mm 0 cm
Dec. 29 Heavy rain at times
Heavy rain at times
6° /1° 8.1 mm 0 cm
Dec. 30 Patchy rain possible
Patchy rain possible
6° /0° 0.2 mm 0 cm
Dec. 31 Freezing fog
Freezing fog
3° /-2° 0 mm 0 cm
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Important Notice
Our weather forecast for Lewiston 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 Lewiston forecast closer to your planned date for the most up-to-date weather information.

Lewiston in December - FAQ

What are the expected maximum and minimum temperatures in Lewiston during December?
Brace for cold days with temperatures not exceeding 5° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Lewiston during December?
Significant rainfall exceeding 124.2 mm is expected in Lewiston during December, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Lewiston in December 2025?
Lewiston experiences an average snowfall of 3.2 cm during December, occurring over 2 days.
What are the typical wind conditions in Lewiston during December?
The average wind speed in Lewiston during December is 9 km/h, suggesting breezy to windy conditions, depending on your activities.

Lewiston snow forecast December 2025

Track daily snowfall levels and discover Lewiston’s snowy potential this December ❄️

December rainfall patterns in Lewiston

Explore the daily rainfall trends and prepare for Lewistons December weather 💧

Quick links

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Location coordinates Where is Lewiston?

Get accurate weather forecasts for Lewiston, located at latitude 46.417 and longitude -117.018. Stay updated with localized weather information tailored for Lewiston.

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