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Weather in Brockville for December 2025

Your guide to Brockville weather in December - trends and predictions

    Snow Forecast ❄️

  • The climate of Brockville in December is quite snowy, averaging 11 snowy days.
    According to Brockville snow forecast for December 2025, 8 snowy days are expected until the end of the month. The closest date with snow is Friday, 19 December.

    • Temperatures

  • Until now, December 2025 in Brockville is cooler than usual, with temperatures averaging -1.9 °C, this is -2.5 °C below the typical seasonal average.

  • The forecast for the next days in Brockville predicts a temperature of -2.8 °C, which is cooler than the historical average.

  • In general, the average temperature in Brockville at the beginning of December is 0.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of -4 °C by the end of December.

    • More

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

Average dry days
11
Dry days
Average rainy days
9
Rainy days
Average snowy days
11
Snow days
Average temperatures
1°/-3°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
83 %
Avg humidity

Brockville Weather December

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

Temperatures trend during December in Brockville

See the weather trend as well as the moving average line

December weather in Brockville day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
1 Dec. Overcast
Overcast
 2° /-1° 2.2 mm 0 cm
2 Dec. Light rain
Light rain
 1° /-2° 5.5 mm 2.6 cm
3 Dec. Light freezing rain
Light freezing rain
 1° /-2° 3.6 mm 0.3 cm
4 Dec. Moderate snow
Moderate snow
 1° /-4° 4.5 mm 1.6 cm
5 Dec. Overcast
Overcast
 -1° /-6° 1.7 mm 1.2 cm
6 Dec. Light freezing rain
Light freezing rain
 -1° /-7° 0 mm 0 cm
7 Dec. Heavy snow
Heavy snow
 -1° /-7° 2.8 mm 2.1 cm
8 Dec. Fog
Fog
 0° /-6° 9.8 mm 7.1 cm
9 Dec. Mist
Mist
 2° /-5° 7 mm 1.6 cm
10 Dec. Heavy rain
Heavy rain
 5° /-1° 30.7 mm 4.7 cm
11 Dec. Moderate or heavy snow showers
Moderate or heavy snow showers
 1° /-4° 11.9 mm 4.3 cm
12 Dec. Moderate snow
Moderate snow
 1° /-7° 2.4 mm 1.7 cm
13 Dec. Light snow
Light snow
 0° /-6° 0.1 mm 0 cm
14 Dec. Overcast
Overcast
 -2° /-7° 0 mm 0 cm
15 Dec. Sunny
Sunny
 4° /-2° 0 mm 0 cm
16 Dec. Cloudy
Cloudy
 -1° /-9° 0 mm 0 cm
17 Dec. Overcast
Overcast
 3° /-6° 0.1 mm 0 cm
18 Dec. Moderate or heavy snow showers
Moderate or heavy snow showers
 3° /-15° 7.5 mm 0 cm
19 Dec. Moderate rain
Moderate rain
 6° /-8° 6.7 mm 0 cm
20 Dec. Light snow
Light snow
 -5° /-11° 1.1 mm 0.8 cm
21 Dec. Heavy snow
Heavy snow
 1° /-7° 3.4 mm 2.4 cm
22 Dec. Partly cloudy
Partly cloudy
 -9° /-14° 0 mm 0 cm
23 Dec. Light snow
Light snow
 3° /-7° 0.1 mm 0 cm
24 Dec. Light sleet
Light sleet
 2° /-5° 1.7 mm 0.2 cm
25 Dec. Overcast
Overcast
 -10° /-14° 0 mm 0 cm
26 Dec. Moderate snow
Moderate snow
 -5° /-12° 1.7 mm 1.3 cm
27 Dec. Partly cloudy
Partly cloudy
 -13° /-20° 0 mm 0 cm
28 Dec. Partly cloudy
Partly cloudy
 -11° /-15° 0 mm 0 cm
29 Dec. Light drizzle
Light drizzle
 5° /3° 23.2 mm 0 cm
30 Dec. Cloudy
Cloudy
 4° /0° 0.1 mm 0 cm
31 Dec. Overcast
Overcast
 2° /-1° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Brockville 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 Brockville forecast closer to your planned date for the most up-to-date weather information.
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Brockville in December - FAQ

What are the expected maximum and minimum temperatures in Brockville 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 Brockville during December?
Significant rainfall exceeding 180.7 mm is expected in Brockville during December, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Brockville in December 2025?
Brockville experiences an average snowfall of 42.325 cm during December, occurring over 11 days.
What are the typical wind conditions in Brockville during December?
The average wind speed in Brockville during December is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

Brockville snow forecast December 2025

Track daily snowfall levels and discover Brockville’s snowy potential this December ❄️
On average, Brockville sees 11 snowy days during December, with approximately 42.3 cm of total snowfall.

December rainfall patterns in Brockville

Explore the daily rainfall trends and prepare for Brockvilles December weather 💧
Typically, Brockville has 9 rainy days in December with a total of 180.7 mm of rainfall.

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Location coordinates Where is Brockville?

Get accurate weather forecasts for Brockville, located at latitude 44.591 and longitude -75.687. Stay updated with localized weather information tailored for Brockville.

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