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Lambton County (Sarnia)
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Weather in Lambton County for December 2025

Your guide to Lambton County weather in December - trends and predictions

    Snow Forecast ❄️

  • Lambton County typically experiences moderate snowfall in December, with an average of 8 snowy days.
    According to Lambton County snow forecast for December 2025, 3 snowy days are expected until the end of the month. The closest date with snow is Monday, 22 December.

    • Temperatures

  • Until now, December 2025 in Lambton County is cooler than usual, with temperatures averaging -0.6 °C, this is -2.8 °C below the typical seasonal average.

  • The forecast for the upcoming days in Lambton County predicts a temperature of 1.8 °C, which is slightly above the historical average.

  • In general, the average temperature in Lambton County at the beginning of December is 1.6 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 2 °C by the end of December.

    • More

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Average dry days
12
Dry days
Average rainy days
11
Rainy days
Average snowy days
8
Snow days
Average temperatures
3°/0°
Temperatures
Average wind speed
25 km/h
Avg max wind
Average humidity
82 %
Avg humidity

Lambton County Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Moderate rain
1°
2
Light rain
3°
3
Moderate rain
2°
4
Overcast
1°
5
Overcast
1°
6
Overcast
0°
7
Patchy rain possible
3°
8
Patchy rain possible
2°
9
Light drizzle
6°
10
Moderate snow
4°
11
Light freezing rain
1°
12
Partly cloudy
1°
13
Partly cloudy
-1°
14
Overcast
1°
15
Sunny
2°
16
Overcast
5°
17
Overcast
4°
18
Light snow showers
4°
19
Overcast
1°
20
Partly cloudy
3°
21
Sunny
-1°
22
Moderate or heavy snow showers
-2°
23
Overcast
2°
24
Moderate snow
1°
25
Patchy rain possible
4°
26
Fog
5°
27
Light freezing rain
-4°
28
Partly cloudy
1°
29
Moderate rain
2°
30
Patchy rain possible
3°
31
Partly cloudy
3°

Temperatures trend during December in Lambton County

See the weather trend as well as the moving average line

December weather in Lambton County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
1 Dec. Moderate rain
Moderate rain
 1° /-3° 3.9 mm 0 cm
2 Dec. Light rain
Light rain
 3° /-1° 2.2 mm 0 cm
3 Dec. Moderate rain
Moderate rain
 2° /-2° 5.1 mm 0 cm
4 Dec. Overcast
Overcast
 1° /-4° 1.1 mm 0.3 cm
5 Dec. Overcast
Overcast
 1° /-4° 0.1 mm 0.1 cm
6 Dec. Overcast
Overcast
 0° /-3° 0 mm 0 cm
7 Dec. Patchy rain possible
Patchy rain possible
 3° /-2° 1.2 mm 0.9 cm
8 Dec. Patchy rain possible
Patchy rain possible
 2° /-2° 0 mm 0 cm
9 Dec. Light drizzle
Light drizzle
 6° /-1° 4.3 mm 0 cm
10 Dec. Moderate snow
Moderate snow
 4° /-1° 9 mm 2.4 cm
11 Dec. Light freezing rain
Light freezing rain
 1° /-3° 0.1 mm 0 cm
12 Dec. Partly cloudy
Partly cloudy
 1° /-5° 0 mm 0 cm
13 Dec. Partly cloudy
Partly cloudy
 -1° /-7° 0 mm 0 cm
14 Dec. Overcast
Overcast
 1° /-7° 0 mm 0 cm
15 Dec. Sunny
Sunny
 2° /-3° 3.4 mm 0 cm
16 Dec. Overcast
Overcast
 5° /-1° 1.3 mm 0 cm
17 Dec. Overcast
Overcast
 4° /1° 1.3 mm 0 cm
18 Dec. Light snow showers
Light snow showers
 4° /-1° 10.9 mm 0.3 cm
19 Dec. Overcast
Overcast
 1° /-4° 2.2 mm 0 cm
20 Dec. Partly cloudy
Partly cloudy
 3° /0° 3.8 mm 2.7 cm
21 Dec. Sunny
Sunny
 -1° /-9° 0 mm 0 cm
22 Dec. Moderate or heavy snow showers
Moderate or heavy snow showers
 -2° /-7° 6.5 mm 4.7 cm
23 Dec. Overcast
Overcast
 2° /-1° 0 mm 0 cm
24 Dec. Moderate snow
Moderate snow
 1° /-1° 1.1 mm 0 cm
25 Dec. Patchy rain possible
Patchy rain possible
 4° /2° 1.7 mm 0 cm
26 Dec. Fog
Fog
 5° /-3° 0.1 mm 0 cm
27 Dec. Light freezing rain
Light freezing rain
 -4° /-4° 0.1 mm 0.1 cm
28 Dec. Partly cloudy
Partly cloudy
 1° /-5° 0 mm 0 cm
29 Dec. Moderate rain
Moderate rain
 2° /-1° 5.6 mm 0 cm
30 Dec. Patchy rain possible
Patchy rain possible
 3° /0° 0.5 mm 0 cm
31 Dec. Partly cloudy
Partly cloudy
 3° /-1° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Lambton 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 Lambton County forecast closer to your planned date for the most up-to-date weather information.
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Lambton County in December - FAQ

What are the expected maximum and minimum temperatures in Lambton County during December?
Brace for cold days with temperatures not exceeding 3° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Lambton County during December?
Significant rainfall exceeding 114.7 mm is expected in Lambton County during December, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Lambton County in December 2025?
Lambton County experiences an average snowfall of 12.84 cm during December, occurring over 8 days.
What are the typical wind conditions in Lambton County during December?
The average wind speed in Lambton County during December is 25 km/h, suggesting breezy to windy conditions, depending on your activities.

Lambton County snow forecast December 2025

Track daily snowfall levels and discover Lambton County’s snowy potential this December ❄️
On average, Lambton County sees 8 snowy days during December, with approximately 12.8 cm of total snowfall.

December rainfall patterns in Lambton County

Explore the daily rainfall trends and prepare for Lambton Countys December weather 💧
Typically, Lambton County has 11 rainy days in December with a total of 114.7 mm of rainfall.
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Sarnia
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Location coordinates Where is Lambton County?

Get accurate weather forecasts for Lambton County, located at latitude 42.979 and longitude -82.404. Stay updated with localized weather information tailored for Lambton County.

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