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Canada weather

Weather in Markham for December 2025

Your guide to Markham weather in December - trends and predictions

    Official Weather Alert ⚠️

  • Snow Squall Warning - See hour by hour.

    • Snow Forecast ❄️

  • The climate of Markham in December is quite snowy, averaging 13 snowy days.
    According to Markham snow forecast for December 2025, 8 snowy days are expected in the next 2 weeks. The closest date with snow is Sunday, 14 December.

    • Temperatures

  • Until now, December 2025 in Markham is cooler than usual, with temperatures averaging -0.8 °C, this is -2.1 °C below the typical seasonal average.

  • Expect cooler weather in the next days in Markham with the forecast suggesting a temperature of -1.9 °C, lower than the historical average.

  • In general, the average temperature in Markham at the beginning of December is 0.9 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of -0.1 °C by the end of December.

    • More

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

Average dry days
10
Dry days
Average rainy days
8
Rainy days
Average snowy days
13
Snow days
Average temperatures
2°/-1°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
84 %
Avg humidity

Markham Weather December

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

Temperatures trend during December in Markham

See the weather trend as well as the moving average line

December weather in Markham day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
1 Dec. Moderate rain
Moderate rain
 2° /-2° 3.2 mm 0 cm
2 Dec. Moderate rain
Moderate rain
 2° /-1° 4.6 mm 0.5 cm
3 Dec. Moderate or heavy sleet
Moderate or heavy sleet
 1° /-2° 6.5 mm 1 cm
4 Dec. Overcast
Overcast
 0° /-3° 1 mm 0.3 cm
5 Dec. Overcast
Overcast
 0° /-4° 2.8 mm 2 cm
6 Dec. Overcast
Overcast
 0° /-3° 0 mm 0 cm
7 Dec. Heavy snow
Heavy snow
 1° /-3° 7.3 mm 5.4 cm
8 Dec. Fog
Fog
 1° /-4° 0 mm 0 cm
9 Dec. Patchy rain possible
Patchy rain possible
 4° /-1° 13.8 mm 2 cm
10 Dec. Moderate rain
Moderate rain
 4° /0° 13.6 mm 4.2 cm
11 Dec. Light snow showers
Light snow showers
 0° /-3° 1 mm 0.7 cm
12 Dec. Patchy light snow
Patchy light snow
 1° /-6° 0 mm 0 cm
13 Dec. Partly cloudy
Partly cloudy
 0° /-5° 1.5 mm 1.1 cm
14 Dec. Sunny
Sunny
 -7° /-15° 0 mm 0 cm
15 Dec. Overcast
Overcast
 -4° /-9° 0 mm 0 cm
16 Dec. Cloudy
Cloudy
 -1° /-7° 0 mm 0 cm
17 Dec. Overcast
Overcast
 3° /-3° 0 mm 0 cm
18 Dec. Moderate or heavy snow showers
Moderate or heavy snow showers
 5° /-7° 2.3 mm 0 cm
19 Dec. Blowing snow
Blowing snow
 -3° /-5° 0.2 mm 0 cm
20 Dec. Heavy snow
Heavy snow
 1° /-5° 15.6 mm 2.4 cm
21 Dec. Moderate snow
Moderate snow
 1° /-7° 1.2 mm 0 cm
22 Dec. Overcast
Overcast
 -3° /-11° 0 mm 0 cm
23 Dec. Patchy rain possible
Patchy rain possible
 6° /-5° 0.7 mm 0 cm
24 Dec. Light snow showers
Light snow showers
 -7° /-9° 0.3 mm 0.2 cm
25 Dec. Light freezing rain
Light freezing rain
 -5° /-8° 0.4 mm 0.3 cm
26 Dec. Heavy snow
Heavy snow
 -4° /-8° 2.2 mm 1.6 cm
27 Dec. Partly cloudy
Partly cloudy
 -8° /-11° 0 mm 0 cm
28 Dec. Patchy rain possible
Patchy rain possible
 4° /2° 2.1 mm 0 cm
29 Dec. Light rain
Light rain
 5° /3° 33.8 mm 0 cm
30 Dec. Sunny
Sunny
 5° /0° 4.4 mm 0 cm
31 Dec. Light freezing rain
Light freezing rain
 2° /0° 3.5 mm 2.6 cm
Next
Important Notice
Our weather forecast for Markham 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 Markham forecast closer to your planned date for the most up-to-date weather information.
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Markham in December - FAQ

What are the expected maximum and minimum temperatures in Markham during December?
Brace for cold days with temperatures not exceeding 2° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Markham during December?
Significant rainfall exceeding 159.3 mm is expected in Markham during December, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Markham in December 2025?
Markham experiences an average snowfall of 36.945 cm during December, occurring over 13 days.
What are the typical wind conditions in Markham during December?
The average wind speed in Markham during December is 19 km/h, suggesting breezy to windy conditions, depending on your activities.

Markham snow forecast December 2025

Track daily snowfall levels and discover Markham’s snowy potential this December ❄️
On average, Markham sees 13 snowy days during December, with approximately 36.9 cm of total snowfall.

December rainfall patterns in Markham

Explore the daily rainfall trends and prepare for Markhams December weather 💧
Typically, Markham has 8 rainy days in December with a total of 159.3 mm of rainfall.

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Get accurate weather forecasts for Markham, located at latitude 43.867 and longitude -79.266. Stay updated with localized weather information tailored for Markham.

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