Lewiston (ID)
December
Weather in Lewiston, Idaho for December 2025
Your guide to Lewiston weather in December - trends and predictions
With an average of 2 snowy days, Lewiston usually enjoys a light touch of snow in December.
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.
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.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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14
Dry days
15
Rainy days
2
Snow days
5°/-1°
Temperatures
9 km/h
Avg max wind
88 %
Avg humidity
Lewiston Weather December
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Temperatures trend during December in Lewiston
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December weather in Lewiston day by day
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Date | Weather | Temperatures | Rain | Snow | More |
---|---|---|---|---|---|
Dec. 1 | Partly cloudy | 8° /-2° | 0 mm | 0 cm | |
Dec. 2 | Sunny | 5° /-1° | 0 mm | 0 cm | |
Dec. 3 | Overcast | 0° /-4° | 0 mm | 0 cm | |
Dec. 4 | Overcast | 0° /-3° | 0 mm | 0 cm | |
Dec. 5 | Overcast | 0° /0° | 0 mm | 0 cm | |
Dec. 6 | Overcast | 0° /-2° | 0 mm | 0 cm | |
Dec. 7 | Moderate or heavy rain shower | 7° /-2° | 6.8 mm | 0 cm | |
Dec. 8 | Moderate or heavy rain shower | 7° /-1° | 4.2 mm | 1.6 cm | |
Dec. 9 | Patchy rain possible | 4° /-2° | 0.5 mm | 0 cm | |
Dec. 10 | Overcast | 2° /-2° | 0 mm | 0 cm | |
Dec. 11 | Overcast | 3° /0° | 0 mm | 0 cm | |
Dec. 12 | Patchy rain possible | 3° /-2° | 0.5 mm | 0 cm | |
Dec. 13 | Light freezing rain | 4° /-1° | 1.1 mm | 0 cm | |
Dec. 14 | Moderate or heavy rain shower | 6° /3° | 15 mm | 0 cm | |
Dec. 15 | Patchy rain possible | 6° /-1° | 0.1 mm | 0 cm | |
Dec. 16 | Light freezing rain | 2° /-1° | 4.6 mm | 1.7 cm | |
Dec. 17 | Light freezing rain | 4° /-1° | 5.1 mm | 0 cm | |
Dec. 18 | Heavy rain at times | 11° /0° | 5.8 mm | 0 cm | |
Dec. 19 | Overcast | 6° /-1° | 0 mm | 0 cm | |
Dec. 20 | Overcast | 9° /1° | 0 mm | 0 cm | |
Dec. 21 | Moderate rain at times | 8° /0° | 1.7 mm | 0 cm | |
Dec. 22 | Patchy rain possible | 7° /0° | 4.9 mm | 0 cm | |
Dec. 23 | Patchy rain possible | 9° /3° | 1.9 mm | 0 cm | |
Dec. 24 | Moderate or heavy rain shower | 6° /1° | 27.1 mm | 0 cm | |
Dec. 25 | Overcast | 4° /0° | 0 mm | 0 cm | |
Dec. 26 | Moderate or heavy rain shower | 8° /0° | 13.4 mm | 0 cm | |
Dec. 27 | Light freezing rain | 4° /0° | 4.7 mm | 0 cm | |
Dec. 28 | Moderate or heavy rain shower | 9° /1° | 18.6 mm | 0 cm | |
Dec. 29 | Heavy rain at times | 6° /1° | 8.1 mm | 0 cm | |
Dec. 30 | Patchy rain possible | 6° /0° | 0.2 mm | 0 cm | |
Dec. 31 | 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.
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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
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